<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2007-1124</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias pecuarias]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. de cienc. pecuarias]]></abbrev-journal-title>
<issn>2007-1124</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-11242022000200452</article-id>
<article-id pub-id-type="doi">10.22319/rmcp.v13i2.5789</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Ultrasonography and physiological description of essential events for reproductive management in dairy cattle. Review]]></article-title>
<article-title xml:lang="es"><![CDATA[Ultrasonografía y descripción fisiológica de eventos esenciales para el manejo reproductivo en ganado lechero. Revisión]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-Lechuga]]></surname>
<given-names><![CDATA[María Elena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Maldonado]]></surname>
<given-names><![CDATA[Juan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,aff1  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Baja California Instituto de Ciencias Agrícolas ]]></institution>
<addr-line><![CDATA[ Baja California]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<volume>13</volume>
<numero>2</numero>
<fpage>452</fpage>
<lpage>472</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11242022000200452&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11242022000200452&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11242022000200452&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The ultrasound allows to visualize the female reproductive tract and helps to understand some of the most relevant reproductive events such as follicular and corpus luteum development, ovulation, pregnancy diagnosis, uterine infections, embryo and fetal growth, among others. Nowadays, there is a massive amount of information regarding the physiology and ultrasonography of the reproductive events mentioned above. However, the overwhelming number of available papers review technical aspects of ultrasonography, physiology and reproductive management separately. Therefore, the objective of the present review is to merge a physiological description with reproductive management and technical aspects of original ultrasound pictures of the most relevant reproductive events in dairy cattle to promote ultrasound use during dairy cattle reproductive management by practitioners and researchers.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El ultrasonido permite visualizar el tracto reproductivo femenino y ayuda a comprender algunos de los eventos reproductivos más relevantes como el desarrollo folicular y del cuerpo lúteo, la ovulación, el diagnóstico de gestación, las infecciones uterinas, el crecimiento embrionario y fetal, entre otros. Hoy en día, existe una gran cantidad de información sobre la fisiología y la ultrasonografía de los eventos reproductivos mencionados anteriormente. Sin embargo, el abrumador número de artículos disponibles revisa los aspectos técnicos de la ultrasonografía, la fisiología y el manejo reproductivo por separado. Por lo tanto, el objetivo de la presente revisión es fusionar una descripción fisiológica con el manejo reproductivo y los aspectos técnicos de imágenes de ultrasonido originales de los eventos reproductivos más relevantes en el ganado lechero, para promover el uso de ultrasonido durante el manejo reproductivo del ganado lechero por parte de profesionales e investigadores.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Corpus luteum]]></kwd>
<kwd lng="en"><![CDATA[Embryo]]></kwd>
<kwd lng="en"><![CDATA[Follicle]]></kwd>
<kwd lng="en"><![CDATA[Fetus]]></kwd>
<kwd lng="es"><![CDATA[Cuerpo lúteo]]></kwd>
<kwd lng="es"><![CDATA[Embrión]]></kwd>
<kwd lng="es"><![CDATA[Folículo]]></kwd>
<kwd lng="es"><![CDATA[Feto]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cabrera]]></surname>
<given-names><![CDATA[VE]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Economics of fertility in high-yielding dairy cows on confined TMR systems]]></article-title>
<source><![CDATA[Animal]]></source>
<year>2014</year>
<volume>8</volume>
<numero>S1</numero>
<issue>S1</issue>
<page-range>211-21</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kähn]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Leidl]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
</person-group>
<source><![CDATA[Diagnostic ultrasound and animal reproduction]]></source>
<year>1989</year>
<page-range>53-65</page-range><publisher-loc><![CDATA[Dordrecht, Netherlands ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rajamahendran]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Ambrose]]></surname>
<given-names><![CDATA[DJ]]></given-names>
</name>
<name>
<surname><![CDATA[Burton]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Clinical and research applications of real-time ultrasonography in bovine reproduction: a review]]></article-title>
<source><![CDATA[Can Vet J]]></source>
<year>1994</year>
<volume>35</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>563-72</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ribadu]]></surname>
<given-names><![CDATA[AY]]></given-names>
</name>
<name>
<surname><![CDATA[Nakao]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Bovine reproductive ultrasonography: a review]]></article-title>
<source><![CDATA[J Reprod Dev]]></source>
<year>1994</year>
<volume>45</volume>
<page-range>13-28</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[DesCoteaux]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Gnemmi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Colloton]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ultrasonography of the bovine female genital tract]]></article-title>
<source><![CDATA[Vet Clin Food Anim]]></source>
<year>2009</year>
<volume>25</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>733-52</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quintela]]></surname>
<given-names><![CDATA[LA]]></given-names>
</name>
<name>
<surname><![CDATA[Barrio]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Peña]]></surname>
<given-names><![CDATA[AL]]></given-names>
</name>
<name>
<surname><![CDATA[Becerra]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
<name>
<surname><![CDATA[Cainzos]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Herradón]]></surname>
<given-names><![CDATA[PG]]></given-names>
</name>
<name>
<surname><![CDATA[Díaz]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Use of ultrasound in the reproductive management of dairy cattle]]></article-title>
<source><![CDATA[Reprod Dom Anim]]></source>
<year>2012</year>
<volume>47</volume>
<numero>s3</numero>
<issue>s3</issue>
<page-range>34-44</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Perry]]></surname>
<given-names><![CDATA[GA]]></given-names>
</name>
<name>
<surname><![CDATA[Pas]]></surname>
<given-names><![CDATA[Cushman RA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Use of ultrasonography to make reproductive management decisions]]></article-title>
<source><![CDATA[The Prof Anim Sci]]></source>
<year>2016</year>
<volume>32</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>154-61</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fortune]]></surname>
<given-names><![CDATA[JE]]></given-names>
</name>
<name>
<surname><![CDATA[Rivera]]></surname>
<given-names><![CDATA[GM]]></given-names>
</name>
<name>
<surname><![CDATA[Evans]]></surname>
<given-names><![CDATA[AC]]></given-names>
</name>
<name>
<surname><![CDATA[Turzillo]]></surname>
<given-names><![CDATA[AM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Differentiation of dominant versus subordinate follicles in cattle]]></article-title>
<source><![CDATA[Biol Reprod]]></source>
<year>2001</year>
<volume>65</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>648-54</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gong]]></surname>
<given-names><![CDATA[JG]]></given-names>
</name>
<name>
<surname><![CDATA[Campbell]]></surname>
<given-names><![CDATA[BK]]></given-names>
</name>
<name>
<surname><![CDATA[Webb]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Defining the gonadotrophin requirement for the selection of a single dominant follicle in cattle]]></article-title>
<source><![CDATA[Reprod Fertil Dev]]></source>
<year>2019</year>
<volume>32</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>322-34</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Adams]]></surname>
<given-names><![CDATA[GP]]></given-names>
</name>
<name>
<surname><![CDATA[Jaiswal]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Malhi]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Progress in understanding ovarian follicular dynamics in cattle]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2008</year>
<volume>69</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>72-80</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ginther]]></surname>
<given-names><![CDATA[OJ]]></given-names>
</name>
</person-group>
<source><![CDATA[Domest Anim Endocrinol]]></source>
<year>2016</year>
<volume>57</volume>
<page-range>85-99</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sartori]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Fricke]]></surname>
<given-names><![CDATA[PM]]></given-names>
</name>
<name>
<surname><![CDATA[Ferreira]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
<name>
<surname><![CDATA[Ginther]]></surname>
<given-names><![CDATA[OJ]]></given-names>
</name>
<name>
<surname><![CDATA[Wiltbank]]></surname>
<given-names><![CDATA[MC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Follicular deviation and acquisition of ovulatory capacity in bovine follicles]]></article-title>
<source><![CDATA[Biol Reprod]]></source>
<year>2001</year>
<volume>65</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>1403-9</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Perry]]></surname>
<given-names><![CDATA[GA]]></given-names>
</name>
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[MF]]></given-names>
</name>
<name>
<surname><![CDATA[Lucy]]></surname>
<given-names><![CDATA[MC]]></given-names>
</name>
<name>
<surname><![CDATA[Green]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<name>
<surname><![CDATA[Parks]]></surname>
<given-names><![CDATA[TE]]></given-names>
</name>
<name>
<surname><![CDATA[MacNeil]]></surname>
<given-names><![CDATA[MD]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relationship between follicle size at insemination and pregnancy success]]></article-title>
<source><![CDATA[Proc. Natl Acad Sci USA]]></source>
<year>2005</year>
<volume>102</volume>
<numero>14</numero>
<issue>14</issue>
<page-range>5268-73</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Colazo]]></surname>
<given-names><![CDATA[MG]]></given-names>
</name>
<name>
<surname><![CDATA[Behrouzi]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Ambrose]]></surname>
<given-names><![CDATA[DJ]]></given-names>
</name>
<name>
<surname><![CDATA[Mapletoft]]></surname>
<given-names><![CDATA[RJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diameter of the ovulatory follicle at timed artificial insemination as a predictor of pregnancy status in lactating dairy cows subjected to GnRH-based protocols]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2015</year>
<volume>84</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>377-83</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mussard]]></surname>
<given-names><![CDATA[ML]]></given-names>
</name>
<name>
<surname><![CDATA[Burke]]></surname>
<given-names><![CDATA[CR]]></given-names>
</name>
<name>
<surname><![CDATA[Behlke]]></surname>
<given-names><![CDATA[EJ]]></given-names>
</name>
<name>
<surname><![CDATA[Gasser]]></surname>
<given-names><![CDATA[CL]]></given-names>
</name>
<name>
<surname><![CDATA[Day]]></surname>
<given-names><![CDATA[ML]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influence of premature induction of a luteinizing hormone surge with gonadotropin-releasing hormone on ovulation, luteal function, and fertility in cattle]]></article-title>
<source><![CDATA[J Anim Sci]]></source>
<year>2007</year>
<volume>85</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>937-43</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Colazo]]></surname>
<given-names><![CDATA[MG]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[MF]]></given-names>
</name>
<name>
<surname><![CDATA[Kastelic]]></surname>
<given-names><![CDATA[JP]]></given-names>
</name>
<name>
<surname><![CDATA[Mapletoft]]></surname>
<given-names><![CDATA[RJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of dose and route of administration of cloprostenol on luteolysis, estrus and ovulation in beef heifers]]></article-title>
<source><![CDATA[Anim Reprod Sci]]></source>
<year>2002</year>
<volume>72</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>47-62</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[White]]></surname>
<given-names><![CDATA[FJ]]></given-names>
</name>
<name>
<surname><![CDATA[Wettemann]]></surname>
<given-names><![CDATA[RP]]></given-names>
</name>
<name>
<surname><![CDATA[Looper]]></surname>
<given-names><![CDATA[ML]]></given-names>
</name>
<name>
<surname><![CDATA[Prado]]></surname>
<given-names><![CDATA[TM]]></given-names>
</name>
<name>
<surname><![CDATA[Morgan]]></surname>
<given-names><![CDATA[GL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Seasonal effects on estrous behavior and time of ovulation in nonlactating beef cows]]></article-title>
<source><![CDATA[J Anim Sci]]></source>
<year>2002</year>
<volume>80</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>3053-9</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[López-Gatius]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Garcia-Ispierto]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Hunter]]></surname>
<given-names><![CDATA[RHF]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Twin pregnancies in dairy cattle: Observations in a large herd of Holstein-Friesian dairy cows]]></article-title>
<source><![CDATA[Animals]]></source>
<year>2020</year>
<volume>10</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1-9</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[López-Gatius]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Andreu-Vázquez]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Mur-Novales]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Cabrera]]></surname>
<given-names><![CDATA[VE]]></given-names>
</name>
<name>
<surname><![CDATA[Hunter]]></surname>
<given-names><![CDATA[RHF]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The dilemma of twin pregnancies in dairy cattle. A review of practical prospects]]></article-title>
<source><![CDATA[Liv Sci]]></source>
<year>2017</year>
<volume>197</volume>
<page-range>12-6</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García-Guerra]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Kirkpatrick]]></surname>
<given-names><![CDATA[BW]]></given-names>
</name>
<name>
<surname><![CDATA[Wiltbank]]></surname>
<given-names><![CDATA[MC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Follicular waves and hormonal profiles during the estrous cycle of carriers and non-carriers of the Trio allele, a major bovine gene for high ovulation and fecundity]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2017</year>
<volume>100</volume>
<page-range>100-13</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[López-Gatius]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Hunter]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Puncture and drainage of the subordinate follicles at timed artificial insemination prevents the risk of twin pregnancy in dairy cows]]></article-title>
<source><![CDATA[Reprod Domest Anim]]></source>
<year>2018</year>
<volume>53</volume>
<page-range>213-6</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[López-Gatius]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[López-Béjar]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Fenech]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Hunter]]></surname>
<given-names><![CDATA[RH]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ovulation failure and double ovulation in dairy cattle: risk factors and effects]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2005</year>
<volume>63</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>1298-307</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morris]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
<name>
<surname><![CDATA[Kaneko]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Walker]]></surname>
<given-names><![CDATA[SL]]></given-names>
</name>
<name>
<surname><![CDATA[Jones]]></surname>
<given-names><![CDATA[DN]]></given-names>
</name>
<name>
<surname><![CDATA[Routly]]></surname>
<given-names><![CDATA[JE]]></given-names>
</name>
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[RF]]></given-names>
</name>
<name>
<surname><![CDATA[Dobson]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influence of lameness on follicular growth, ovulation, reproductive hormone concentrations and estrus behavior in dairy cows]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2011</year>
<volume>76</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>658-68</page-range></nlm-citation>
</ref>
<ref id="B24">
<label>24</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hatler]]></surname>
<given-names><![CDATA[TB]]></given-names>
</name>
<name>
<surname><![CDATA[Hayes]]></surname>
<given-names><![CDATA[SH]]></given-names>
</name>
<name>
<surname><![CDATA[Laranja da Fonseca]]></surname>
<given-names><![CDATA[LF]]></given-names>
</name>
<name>
<surname><![CDATA[Silvia]]></surname>
<given-names><![CDATA[WJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relationship between endogenous progesterone and follicular dynamics in lactating dairy cows with ovarian follicular cysts]]></article-title>
<source><![CDATA[Biol Reprod]]></source>
<year>2003</year>
<volume>69</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>218-23</page-range></nlm-citation>
</ref>
<ref id="B25">
<label>25</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Calder]]></surname>
<given-names><![CDATA[MD]]></given-names>
</name>
<name>
<surname><![CDATA[Salfen]]></surname>
<given-names><![CDATA[BE]]></given-names>
</name>
<name>
<surname><![CDATA[Bao]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Youngquist]]></surname>
<given-names><![CDATA[RS]]></given-names>
</name>
<name>
<surname><![CDATA[Garverick]]></surname>
<given-names><![CDATA[HA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Administration of progesterone to cows with ovarian follicular cyst results in a reduction in mean LH and LH pulses frequency and initiates ovulatory follicular growth]]></article-title>
<source><![CDATA[J Anim Sci]]></source>
<year>1999</year>
<volume>77</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>3037-42</page-range></nlm-citation>
</ref>
<ref id="B26">
<label>26</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kaneko]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Todoroki]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Noguchi]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Kikuchi]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Mizoshita]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Kubota]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Yamakuchi]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Perturbation of estradiol-feedback control of luteinizing hormone secretion by immunoneutralization induces development of follicular cysts in cattle]]></article-title>
<source><![CDATA[Biol Reprod]]></source>
<year>2002</year>
<volume>67</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1840-5</page-range></nlm-citation>
</ref>
<ref id="B27">
<label>27</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gümen]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Sartori]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Costa]]></surname>
<given-names><![CDATA[FM]]></given-names>
</name>
<name>
<surname><![CDATA[Wiltbank]]></surname>
<given-names><![CDATA[MC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A GnRH/LH surge without subsequent progesterone exposure can induce development of follicular cysts]]></article-title>
<source><![CDATA[J Dairy Sci]]></source>
<year>2002</year>
<volume>85</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>43-50</page-range></nlm-citation>
</ref>
<ref id="B28">
<label>28</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Douthwaite]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Dobson]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparison of different methods of diagnosis cyst ovarian disease in cattle and an assessment of its treatment with a progesterone-releasing intravaginal device]]></article-title>
<source><![CDATA[Vet Rec]]></source>
<year>2000</year>
<volume>147</volume>
<numero>13</numero>
<issue>13</issue>
<page-range>355-9</page-range></nlm-citation>
</ref>
<ref id="B29">
<label>29</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ambrose]]></surname>
<given-names><![CDATA[DJ]]></given-names>
</name>
<name>
<surname><![CDATA[Schmitt]]></surname>
<given-names><![CDATA[EJP]]></given-names>
</name>
<name>
<surname><![CDATA[Lopes]]></surname>
<given-names><![CDATA[FL]]></given-names>
</name>
<name>
<surname><![CDATA[Mattos]]></surname>
<given-names><![CDATA[RC]]></given-names>
</name>
<name>
<surname><![CDATA[Thatcher]]></surname>
<given-names><![CDATA[WW]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ovarian and endocrine responses associated with the treatment of cystic ovarian follicles in dairy cows with gonadotropin releasing hormone and prostaglandin F2&#945;, with or without exogenous progesterone]]></article-title>
<source><![CDATA[Can Vet J]]></source>
<year>2004</year>
<volume>45</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>931-7</page-range></nlm-citation>
</ref>
<ref id="B30">
<label>30</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Abedel-Majed]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Romereim]]></surname>
<given-names><![CDATA[SM]]></given-names>
</name>
<name>
<surname><![CDATA[Davis]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
<name>
<surname><![CDATA[Cupp]]></surname>
<given-names><![CDATA[AS]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Perturbations in lineage specification of granulosa and theca cells may alter corpus luteum formation and function]]></article-title>
<source><![CDATA[Front Endocrinol]]></source>
<year>2019</year>
<volume>10</volume>
<page-range>1-10</page-range></nlm-citation>
</ref>
<ref id="B31">
<label>31</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kastelic]]></surname>
<given-names><![CDATA[JP]]></given-names>
</name>
<name>
<surname><![CDATA[Pierson]]></surname>
<given-names><![CDATA[RA]]></given-names>
</name>
<name>
<surname><![CDATA[Ginther]]></surname>
<given-names><![CDATA[OJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ultrasonic morphology of corpora lutea and central luteal cavities during the estrous cycle and early pregnancy in heifers]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>1990</year>
<volume>34</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>487-98</page-range></nlm-citation>
</ref>
<ref id="B32">
<label>32</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Rajamahendran]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Follicular dynamics and corpus luteum growth and function in pregnant versus nonpregnant cows]]></article-title>
<source><![CDATA[J Dairy Sci]]></source>
<year>1991</year>
<volume>74</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>115-23</page-range></nlm-citation>
</ref>
<ref id="B33">
<label>33</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Siqueira]]></surname>
<given-names><![CDATA[LG]]></given-names>
</name>
<name>
<surname><![CDATA[Torres]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Amorim]]></surname>
<given-names><![CDATA[LS]]></given-names>
</name>
<name>
<surname><![CDATA[Souza]]></surname>
<given-names><![CDATA[ED]]></given-names>
</name>
<name>
<surname><![CDATA[Camargo]]></surname>
<given-names><![CDATA[LS]]></given-names>
</name>
<name>
<surname><![CDATA[Fernandes]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Viana]]></surname>
<given-names><![CDATA[JHM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Interrelationships among morphology, echotexture, and function of the bovine corpus luteum during the estrous cycle]]></article-title>
<source><![CDATA[Anim Reprod Sci]]></source>
<year>2009</year>
<volume>115</volume>
<numero>1-4</numero>
<issue>1-4</issue>
<page-range>18-28</page-range></nlm-citation>
</ref>
<ref id="B34">
<label>34</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Pierson]]></surname>
<given-names><![CDATA[RA]]></given-names>
</name>
<name>
<surname><![CDATA[Adams]]></surname>
<given-names><![CDATA[GP]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ultrasound image attributes of the bovine corpus luteum: structural and functional correlates]]></article-title>
<source><![CDATA[J Reprod Fertil]]></source>
<year>1997</year>
<volume>109</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>35-44</page-range></nlm-citation>
</ref>
<ref id="B35">
<label>35</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Perez-Marin]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Formation of corpora lutea and central luteal cavities and their relationship with plasma progesterone levels and other metabolic parameters in dairy cattle]]></article-title>
<source><![CDATA[Reprod Domest Anim]]></source>
<year>2009</year>
<volume>44</volume>
<page-range>384-9</page-range></nlm-citation>
</ref>
<ref id="B36">
<label>36</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kito]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Okuda]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Miyazawa]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Sato]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Study on the appearance of the cavity in the corpus luteum of cows by using ultrasonic scanning]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>1986</year>
<volume>25</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>325-33</page-range></nlm-citation>
</ref>
<ref id="B37">
<label>37</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lüttgenau]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Ulbrich]]></surname>
<given-names><![CDATA[SE]]></given-names>
</name>
<name>
<surname><![CDATA[Beindorff]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Honnens]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Herzog]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Bollwein]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Plasma progesterone concentrations in the mid-luteal phase are dependent on luteal size, but independent of luteal blood flow and gene expression in lactating dairy cow]]></article-title>
<source><![CDATA[Anim Reprod Sci]]></source>
<year>2011</year>
<numero>1-4</numero>
<issue>1-4</issue>
<page-range>125:20-9</page-range></nlm-citation>
</ref>
<ref id="B38">
<label>38</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rizos]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Scully]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Kelly]]></surname>
<given-names><![CDATA[AK]]></given-names>
</name>
<name>
<surname><![CDATA[Ealy]]></surname>
<given-names><![CDATA[AD]]></given-names>
</name>
<name>
<surname><![CDATA[Moros]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Duffy]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Al-Naib]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Forde]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Lonergan]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of human chorionic gonadotrophin administration on day 5 after oestrus on corpus luteum characteristics, circulating progesterone and conceptus elongation in cattle]]></article-title>
<source><![CDATA[Reprod Fertil Dev]]></source>
<year>2012</year>
<volume>24</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>472-81</page-range></nlm-citation>
</ref>
<ref id="B39">
<label>39</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cummins]]></surname>
<given-names><![CDATA[SB]]></given-names>
</name>
<name>
<surname><![CDATA[Lonergan]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Evans]]></surname>
<given-names><![CDATA[AC]]></given-names>
</name>
<name>
<surname><![CDATA[Butler]]></surname>
<given-names><![CDATA[ST]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Genetic merit of fertility traits in Holstein cows: II. Ovarian follicular and corpus luteum dynamics, reproductive hormones, and estrus behavior]]></article-title>
<source><![CDATA[J Dairy Sci]]></source>
<year>2012</year>
<volume>95</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>3698-36710</page-range></nlm-citation>
</ref>
<ref id="B40">
<label>40</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moore]]></surname>
<given-names><![CDATA[SG]]></given-names>
</name>
<name>
<surname><![CDATA[Scully]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Browne]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<name>
<surname><![CDATA[Fair]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Butler]]></surname>
<given-names><![CDATA[ST]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Genetic merit for fertility traits in Holstein cows: V. Factors affecting circulating progesterone concentrations]]></article-title>
<source><![CDATA[J Dairy Sci]]></source>
<year>2014</year>
<volume>97</volume>
<numero>2-3</numero>
<issue>2-3</issue>
<page-range>5543-57</page-range></nlm-citation>
</ref>
<ref id="B41">
<label>41</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gómez-Seco]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Alegre]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez-Pastor]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Prieto]]></surname>
<given-names><![CDATA[JG]]></given-names>
</name>
<name>
<surname><![CDATA[González-Montaña]]></surname>
<given-names><![CDATA[JR]]></given-names>
</name>
<name>
<surname><![CDATA[Alonso]]></surname>
<given-names><![CDATA[ME]]></given-names>
</name>
<name>
<surname><![CDATA[Domínguez]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evolution of the corpus luteum volume determined ultrasonographically and its relation to the plasma progesterone concentration after artificial insemination in pregnant and non-pregnant dairy cows]]></article-title>
<source><![CDATA[Vet Res Commun]]></source>
<year>2017</year>
<volume>41</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>183-8</page-range></nlm-citation>
</ref>
<ref id="B42">
<label>42</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Battocchio]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Gabai]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Mollo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Veronesi]]></surname>
<given-names><![CDATA[MC]]></given-names>
</name>
<name>
<surname><![CDATA[Soldano]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Bono]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Cairoli]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Agreement between ultrasonographic classification of the CL and plasma progesterone concentration in dairy cows]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>1999</year>
<volume>51</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1059-69</page-range></nlm-citation>
</ref>
<ref id="B43">
<label>43</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kaneko]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Takagi]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Accurate ultrasonographic prediction of progesterone concentrations greater than 1 ng/ml in Holstein lactating dairy cows]]></article-title>
<source><![CDATA[Reprod Domest Anim]]></source>
<year>2014</year>
<volume>49</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>985-8</page-range></nlm-citation>
</ref>
<ref id="B44">
<label>44</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hassan]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Arshad]]></surname>
<given-names><![CDATA[U]]></given-names>
</name>
<name>
<surname><![CDATA[Bilal]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Sattar]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Avais]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Bollwein]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Ahmad]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Luteal blood flow measured by Doppler ultrasonography during the first three weeks after artificial insemination in pregnant and non-pregnant Bos indicus dairy cows]]></article-title>
<source><![CDATA[J Reprod Dev]]></source>
<year>2019</year>
<volume>65</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>29-36</page-range></nlm-citation>
</ref>
<ref id="B45">
<label>45</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wenzinger]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Bleul]]></surname>
<given-names><![CDATA[U]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of a prostaglandin F2&#945; analogue on the cyclic corpus luteum during its refractory period in cows]]></article-title>
<source><![CDATA[BMC Vet Res]]></source>
<year>2012</year>
<volume>8</volume>
<page-range>220</page-range></nlm-citation>
</ref>
<ref id="B46">
<label>46</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Répási]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Beckers]]></surname>
<given-names><![CDATA[JF]]></given-names>
</name>
<name>
<surname><![CDATA[Sulon]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Perényi]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Reiczigel]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Szenci]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of different doses of prostaglandin on the area of corpus luteum, the largest follicle and progesterone concentration in the dairy cow]]></article-title>
<source><![CDATA[Reprod Domest Anim]]></source>
<year>2003</year>
<volume>38</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>423-8</page-range></nlm-citation>
</ref>
<ref id="B47">
<label>47</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Levy]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Kobayashi]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Roth]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Wolfenson]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Miyamoto]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Meidan]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Administration of prostaglandin F (2 alpha) during the early bovine luteal phase does not alter the expression of ET-1 and of its type A receptor: a possible cause for corpus luteum refractoriness]]></article-title>
<source><![CDATA[Biol Reprod]]></source>
<year>2000</year>
<volume>63</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>377-82</page-range></nlm-citation>
</ref>
<ref id="B48">
<label>48</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yadav]]></surname>
<given-names><![CDATA[VK]]></given-names>
</name>
<name>
<surname><![CDATA[Lakshmi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Medhamurthy]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prostaglandin F2alpha-mediated activation of apoptotic signaling cascades in the corpus luteum during apoptosis: involvement of caspase-activated DNase]]></article-title>
<source><![CDATA[J Biol Chem]]></source>
<year>2005</year>
<volume>280</volume>
<page-range>10357-67</page-range></nlm-citation>
</ref>
<ref id="B49">
<label>49</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pate]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Landis Keyes]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Immune cells in the corpus luteum: friends or foes?]]></article-title>
<source><![CDATA[Reproduction]]></source>
<year>2001</year>
<volume>122</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>665-76</page-range></nlm-citation>
</ref>
<ref id="B50">
<label>50</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bazer]]></surname>
<given-names><![CDATA[FW]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pregnancy recognition signaling mechanisms in ruminants and pigs]]></article-title>
<source><![CDATA[J Anim Sci]]></source>
<year>2013</year>
<volume>4</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>23</page-range></nlm-citation>
</ref>
<ref id="B51">
<label>51</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Curran]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Pierson]]></surname>
<given-names><![CDATA[RA]]></given-names>
</name>
<name>
<surname><![CDATA[Ginther]]></surname>
<given-names><![CDATA[OJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ultrasonographic appearance of the bovine conceptus from days 20 through 60]]></article-title>
<source><![CDATA[J Am Vet Med Assoc]]></source>
<year>1986</year>
<numero>10</numero>
<issue>10</issue>
<page-range>1295-302</page-range></nlm-citation>
</ref>
<ref id="B52">
<label>52</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fricke]]></surname>
<given-names><![CDATA[PM]]></given-names>
</name>
<name>
<surname><![CDATA[Ricci]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Giordano]]></surname>
<given-names><![CDATA[JO]]></given-names>
</name>
<name>
<surname><![CDATA[Carvalho]]></surname>
<given-names><![CDATA[PD]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Methods for and implementation of pregnancy diagnosis in dairy cows]]></article-title>
<source><![CDATA[Vet Clin North Am Food Anim Prod]]></source>
<year>2016</year>
<volume>32</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>165-80</page-range></nlm-citation>
</ref>
<ref id="B53">
<label>53</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Diskin]]></surname>
<given-names><![CDATA[MG]]></given-names>
</name>
<name>
<surname><![CDATA[Waters]]></surname>
<given-names><![CDATA[SM]]></given-names>
</name>
<name>
<surname><![CDATA[Parr]]></surname>
<given-names><![CDATA[MH]]></given-names>
</name>
<name>
<surname><![CDATA[Kenny]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pregnancy losses in cattle: potential for improvement]]></article-title>
<source><![CDATA[Reprod Fertil Dev]]></source>
<year>2016</year>
<volume>28</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>83-93</page-range></nlm-citation>
</ref>
<ref id="B54">
<label>54</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wiltbank]]></surname>
<given-names><![CDATA[MC]]></given-names>
</name>
<name>
<surname><![CDATA[Baez]]></surname>
<given-names><![CDATA[GM]]></given-names>
</name>
<name>
<surname><![CDATA[Garcia-Guerra]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Toledo]]></surname>
<given-names><![CDATA[MZ]]></given-names>
</name>
<name>
<surname><![CDATA[Monteiro]]></surname>
<given-names><![CDATA[PL]]></given-names>
</name>
<name>
<surname><![CDATA[Melo]]></surname>
<given-names><![CDATA[LF]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pivotal periods for pregnancy loss during the first trimester of gestation in lactating dairy cows]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2016</year>
<volume>86</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>239-53</page-range></nlm-citation>
</ref>
<ref id="B55">
<label>55</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lonergan]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Fair]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Forde]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Rizos]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Embryo development in dairy cattle]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2016</year>
<numero>1</numero>
<issue>1</issue>
<page-range>270-7</page-range></nlm-citation>
</ref>
<ref id="B56">
<label>56</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kramer]]></surname>
<given-names><![CDATA[RW]]></given-names>
</name>
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[DR]]></given-names>
</name>
<name>
<surname><![CDATA[Rupp]]></surname>
<given-names><![CDATA[GR]]></given-names>
</name>
<name>
<surname><![CDATA[Griffin]]></surname>
<given-names><![CDATA[DD]]></given-names>
</name>
<name>
<surname><![CDATA[Funston]]></surname>
<given-names><![CDATA[RN]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estimation of calving date in beef cattle with real-time ultrasound]]></article-title>
<source><![CDATA[Prof Anim Sci]]></source>
<year>2016</year>
<volume>32</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>322-7</page-range></nlm-citation>
</ref>
<ref id="B57">
<label>57</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lawrence]]></surname>
<given-names><![CDATA[KE]]></given-names>
</name>
<name>
<surname><![CDATA[Adeyinka]]></surname>
<given-names><![CDATA[FD]]></given-names>
</name>
<name>
<surname><![CDATA[Laven]]></surname>
<given-names><![CDATA[RA]]></given-names>
</name>
<name>
<surname><![CDATA[Jones]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Assessment of the accuracy of estimation of gestational age in cattle from placentoma size using inverse regression]]></article-title>
<source><![CDATA[N Z Vet J]]></source>
<year>2016</year>
<volume>64</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>248-52</page-range></nlm-citation>
</ref>
<ref id="B58">
<label>58</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quintela]]></surname>
<given-names><![CDATA[LA]]></given-names>
</name>
<name>
<surname><![CDATA[Becerra]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez-Marín]]></surname>
<given-names><![CDATA[CC]]></given-names>
</name>
<name>
<surname><![CDATA[Barrio]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Cainzos]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Prieto]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Díaz]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Herradón]]></surname>
<given-names><![CDATA[PG]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fetal gender determination by first-trimester ultrasound in dairy cows under routine herd management in Northwest Spain]]></article-title>
<source><![CDATA[Anim Reprod Sci]]></source>
<year>2011</year>
<volume>125</volume>
<numero>1-4</numero>
<issue>1-4</issue>
<page-range>13-9</page-range></nlm-citation>
</ref>
<ref id="B59">
<label>59</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sheldon]]></surname>
<given-names><![CDATA[IM]]></given-names>
</name>
<name>
<surname><![CDATA[Williams]]></surname>
<given-names><![CDATA[EJ]]></given-names>
</name>
<name>
<surname><![CDATA[Miller]]></surname>
<given-names><![CDATA[AN]]></given-names>
</name>
<name>
<surname><![CDATA[Nash]]></surname>
<given-names><![CDATA[DM]]></given-names>
</name>
<name>
<surname><![CDATA[Herath]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Uterine diseases in cattle after parturition]]></article-title>
<source><![CDATA[Vet J]]></source>
<year>2008</year>
<volume>176</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>115-21</page-range></nlm-citation>
</ref>
<ref id="B60">
<label>60</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Carvalho]]></surname>
<given-names><![CDATA[PD]]></given-names>
</name>
<name>
<surname><![CDATA[Souza]]></surname>
<given-names><![CDATA[AH]]></given-names>
</name>
<name>
<surname><![CDATA[Sartori]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Hackbart]]></surname>
<given-names><![CDATA[KS]]></given-names>
</name>
<name>
<surname><![CDATA[Dresch]]></surname>
<given-names><![CDATA[AR]]></given-names>
</name>
<name>
<surname><![CDATA[Vieira]]></surname>
<given-names><![CDATA[LM.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of deep-horn AI on fertilization and embryo production in superovulated cows and heifers]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2013</year>
<volume>80</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>1074-81</page-range></nlm-citation>
</ref>
<ref id="B61">
<label>61</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Barajas-Merchana]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández-Ceróna]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[García-Alfonso]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez-Bárcenasa]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Juárez-Lópeza]]></surname>
<given-names><![CDATA[NO]]></given-names>
</name>
<name>
<surname><![CDATA[Bedolla-Alva]]></surname>
<given-names><![CDATA[AM]]></given-names>
</name>
<name>
<surname><![CDATA[de la Sota]]></surname>
<given-names><![CDATA[RL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Subclinical endometritis and pregnancy rate in dairy cows in Mexico]]></article-title>
<source><![CDATA[Rev Mex Cien Pecu]]></source>
<year>2018</year>
<volume>9</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>135-46</page-range></nlm-citation>
</ref>
<ref id="B62">
<label>62</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Plöntzke]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Madoz]]></surname>
<given-names><![CDATA[LV]]></given-names>
</name>
<name>
<surname><![CDATA[de la Sota]]></surname>
<given-names><![CDATA[RL]]></given-names>
</name>
<name>
<surname><![CDATA[Drillich]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Heuwieser]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Subclinical endometritis and its impact on reproductive performance in grazing dairy cattle in Argentina]]></article-title>
<source><![CDATA[Anim Reprod Sci]]></source>
<year>2010</year>
<volume>122</volume>
<numero>1-1</numero>
<issue>1-1</issue>
<page-range>52-7</page-range></nlm-citation>
</ref>
<ref id="B63">
<label>63</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pothmann]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Prunner]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Wagener]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Jaureguiberry]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[de la Sota]]></surname>
<given-names><![CDATA[RL]]></given-names>
</name>
<name>
<surname><![CDATA[Erber]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Aurich]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Ehling-Schulz]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Drillich]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The prevalence of subclinical endometritis and intrauterine infections in repeat breeder cows]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2015</year>
<volume>83</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1249-53</page-range></nlm-citation>
</ref>
<ref id="B64">
<label>64</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Egberts]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Detterer]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Park]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Meinecke-Tillmann]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Exfoliative endometrial cytology in embryo donor cows-comparison of sampling localizations for the diagnosis of subclinical endometritis]]></article-title>
<source><![CDATA[Vet Sci]]></source>
<year>2016</year>
<volume>3</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>35</page-range></nlm-citation>
</ref>
<ref id="B65">
<label>65</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Van Schyndel]]></surname>
<given-names><![CDATA[SJ]]></given-names>
</name>
<name>
<surname><![CDATA[Bogado Pascottini]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[LeBlanc]]></surname>
<given-names><![CDATA[SJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparison of cow-side diagnostic techniques for subclinical endometritis in dairy cows]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2018</year>
<volume>120</volume>
<page-range>117-22</page-range></nlm-citation>
</ref>
<ref id="B66">
<label>66</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Meira]]></surname>
<given-names><![CDATA[EBS]]></given-names>
</name>
<name>
<surname><![CDATA[Henriques]]></surname>
<given-names><![CDATA[LCS]]></given-names>
</name>
<name>
<surname><![CDATA[Sá]]></surname>
<given-names><![CDATA[LRM]]></given-names>
</name>
<name>
<surname><![CDATA[Gregory]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparison of ultrasonography and histopathology for the diagnosis of endometritis in Holstein-Friesian cows]]></article-title>
<source><![CDATA[J Dairy Sci]]></source>
<year>2012</year>
<volume>95</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>6969-73</page-range></nlm-citation>
</ref>
<ref id="B67">
<label>67</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kasimanickam]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Duffield]]></surname>
<given-names><![CDATA[TF]]></given-names>
</name>
<name>
<surname><![CDATA[Foster]]></surname>
<given-names><![CDATA[RA]]></given-names>
</name>
<name>
<surname><![CDATA[Gartley]]></surname>
<given-names><![CDATA[CJ]]></given-names>
</name>
<name>
<surname><![CDATA[Leslie]]></surname>
<given-names><![CDATA[KE]]></given-names>
</name>
<name>
<surname><![CDATA[Walton]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
<name>
<surname><![CDATA[Johnson]]></surname>
<given-names><![CDATA[WH]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Endometrial cytology and ultrasonography for the detection of subclinical endometritis in postpartum dairy cows]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2004</year>
<volume>62</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>9-23</page-range></nlm-citation>
</ref>
<ref id="B68">
<label>68</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Barer]]></surname>
<given-names><![CDATA[MR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The natural history of infection]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Greenwood]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Slack]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Barer]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Irving]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
</person-group>
<source><![CDATA[Medical microbiology]]></source>
<year>2012</year>
<edition>18th</edition>
<publisher-loc><![CDATA[USA ]]></publisher-loc>
<publisher-name><![CDATA[Churchill Livingstone]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
