<?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>S2007-11242019000300571</article-id>
<article-id pub-id-type="doi">10.22319/rmcp.v10i3.4481</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Effects of injecting increased doses of vitamins C and E on reproductive parameters of Holstein dairy cattle]]></article-title>
<article-title xml:lang="es"><![CDATA[Efectos de la inyección de dosis aumentadas de vitaminas C y E en los parámetros reproductivos del ganado lechero Holstein]]></article-title>
</title-group>
<contrib-group>
<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 contrib-type="author">
<name>
<surname><![CDATA[Rangel-Santos]]></surname>
<given-names><![CDATA[Raymundo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-de Lara]]></surname>
<given-names><![CDATA[Raymundo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez-Valverde]]></surname>
<given-names><![CDATA[Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez Bribiesca]]></surname>
<given-names><![CDATA[J. Efrén]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vigil-Vigil]]></surname>
<given-names><![CDATA[J. Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Espinosa]]></surname>
<given-names><![CDATA[M. Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Chapingo Departamento de Zootecnia ]]></institution>
<addr-line><![CDATA[ Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados Departamento de Estadística ]]></institution>
<addr-line><![CDATA[ Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[ Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma Chapingo Departamento de Zootecnia ]]></institution>
<addr-line><![CDATA[ Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<volume>10</volume>
<numero>3</numero>
<fpage>571</fpage>
<lpage>582</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11242019000300571&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11242019000300571&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11242019000300571&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Vitamins C and E have been supplemented separately to improve fertility in cattle. The objective of this study was to evaluate the effect of combined injections of increased doses of vitamins C and E on reproductive parameters in dairy cattle. Lactating Holstein cows (n= 44) were randomly assigned to one of three treatments: 1) Control: n= 15, cows were not injected with vitamins; 2) VCE3: n= 15, cows received a single intramuscular injection of 3,000 IU of vitamin E before estrus and multiple subcutaneous injections of vitamin C with a total dose of 3,000 mg before and after estrus; 3) VCE6: n= 14, cows were treated as in VCE3, but doses of vitamins C and E were increased to 6,000 mg and 6,000 IU. The reproductive indicators measured were diameter of the preovulatory follicle, time to estrus, area of the corpus luteum, pregnancy rate 35 and 45 d after AI and plasma concentrations of estradiol and progesterone. There was no effect of treatment on any of the evaluated reproductive parameters (P&#707;0.05), except that the lowest dose of vitamins sustained similar pregnancy rates among treatments, even though they had lower progesterone concentrations (P&#8804;0.05) (19.4 ± 2.66 vs 10.1 ± 2.55 vs 19.2 ± 0.44 ng mL-1 for Control, VCE3 and VCE6, respectively). In conclusion, the supplementation with the highest amount of vitamin C and E (6,000 mg and 6,000 IU versus 3,000 mg and 3,000 IU) does not significantly increase the reproductive parameters measured.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Las vitaminas C y E se han suplementado por separado para mejorar la fertilidad en el ganado. El objetivo de este estudio fue evaluar el efecto de las inyecciones combinadas de dosis aumentadas de vitaminas C y E en parámetros reproductivos del ganado lechero. Las vacas lactantes Holstein (n= 44) se asignaron al azar a uno de tres tratamientos: 1) Testigo: n = 15, las vacas no fueron inyectadas con vitaminas; 2) VCE3: n= 15, recibieron una única inyección intramuscular de 3,000 UI de vitamina E antes del estro y múltiples inyecciones subcutáneas de vitamina C con una dosis total de 3,000 mg antes y después del estro; 3) VCE6: n= 14, las vacas se trataron como en VCE3, pero las dosis de vitaminas C y E se incrementaron a 6,000 mg y 6,000 UI. Los indicadores reproductivos medidos fueron el diámetro del folículo preovulatorio, el tiempo al celo, el área del cuerpo lúteo, la tasa de preñez 35 y 45 días después de la IA y las concentraciones plasmáticas de estradiol y progesterona. No hubo efecto del tratamiento en ninguno de los parámetros reproductivos evaluados (P&#707;0.05), excepto que la dosis más baja de vitaminas mantuvo tasas de gestación similares entre los tratamientos, aunque tuvieron concentraciones de progesterona más bajas (P&#8804;0.05) (19.4 ± 2.66 vs 10.1 ± 2.55 vs 19.2 ± 0.44 ng mL-1 para los grupos Testigo, VCE3 y VCE6, respectivamente). En conclusión, la suplementación con la mayor cantidad de vitamina C y E (6,000 mg y 6,000 UI frente a 3,000 mg y 3,000 UI) no aumenta significativamente los parámetros reproductivos medidos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Antioxidants]]></kwd>
<kwd lng="en"><![CDATA[Bovines]]></kwd>
<kwd lng="en"><![CDATA[Fertility]]></kwd>
<kwd lng="es"><![CDATA[Antioxidantes]]></kwd>
<kwd lng="es"><![CDATA[Bovinos]]></kwd>
<kwd lng="es"><![CDATA[Fertilidad]]></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[Allison]]></surname>
<given-names><![CDATA[RD]]></given-names>
</name>
<name>
<surname><![CDATA[Laven]]></surname>
<given-names><![CDATA[RA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of vitamin E supplementation on the health and fertility of dairy cows: a review]]></article-title>
<source><![CDATA[Vet Record]]></source>
<year>2000</year>
<volume>147</volume>
<page-range>703-8</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ranjan]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Ranjan]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Dhaliwal]]></surname>
<given-names><![CDATA[GS]]></given-names>
</name>
<name>
<surname><![CDATA[Patra]]></surname>
<given-names><![CDATA[RC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[L-Ascorbic acid (vitamin C) supplementation to optimize health and reproduction in cattle]]></article-title>
<source><![CDATA[Vet Q]]></source>
<year>2012</year>
<volume>32</volume>
<page-range>145-50</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Baldi]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Savoini]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Pinotti]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Monfardini]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Cheli]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Orto]]></surname>
<given-names><![CDATA[VD]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of vitamin E and different energy sources on vitamin E status, milk quality and reproduction in transition cows]]></article-title>
<source><![CDATA[J Vet Med Asoc]]></source>
<year>2000</year>
<volume>47</volume>
<page-range>599-608</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[Horn]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Gunn]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Van Emon]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Lemenager]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Burgess]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Pyatt]]></surname>
<given-names><![CDATA[NA]]></given-names>
</name>
<name>
<surname><![CDATA[Lake]]></surname>
<given-names><![CDATA[SL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of natural (RRR &#945;-tocopherol acetate) or synthetic (all-rac &#945;-tocopherol acetate) vitamin E supplementation on reproductive efficiency in beef cows]]></article-title>
<source><![CDATA[J Anim Sci]]></source>
<year>2010</year>
<volume>88</volume>
<page-range>3121-7</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[Al-Enazi]]></surname>
<given-names><![CDATA[MM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influence of &#945;-tocopherol on heat stress-induced changes in the reproductive function of Swiss Albino mice]]></article-title>
<source><![CDATA[Saudi J Biol Sci]]></source>
<year>2007</year>
<volume>14</volume>
<page-range>61-7</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[Ren]]></surname>
<given-names><![CDATA[SQ]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[JW]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[HY]]></given-names>
</name>
<name>
<surname><![CDATA[Xu]]></surname>
<given-names><![CDATA[MQ]]></given-names>
</name>
<name>
<surname><![CDATA[Jiang]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Gao]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of vitamin E on bovine granulosa cells apoptosis and proliferation through cx43]]></article-title>
<source><![CDATA[China Anim Husb Vet Med]]></source>
<year>2016</year>
<volume>43</volume>
<page-range>615-21</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[Dalvit]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Llanes]]></surname>
<given-names><![CDATA[SP]]></given-names>
</name>
<name>
<surname><![CDATA[Descalzo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Insani]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Beconi]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Cetica]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of alpha-tocopherol and ascorbic acid on bovine oocyte in vitro maturation]]></article-title>
<source><![CDATA[Reprod Domest Anim]]></source>
<year>2005</year>
<volume>40</volume>
<page-range>93-7</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[Chauhan]]></surname>
<given-names><![CDATA[SS]]></given-names>
</name>
<name>
<surname><![CDATA[Celi]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Ponnampalam]]></surname>
<given-names><![CDATA[EN]]></given-names>
</name>
<name>
<surname><![CDATA[Leury]]></surname>
<given-names><![CDATA[BJ]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Dunshea]]></surname>
<given-names><![CDATA[FR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Antioxidant dynamics in the live animal and implications for ruminant health and product (meat/milk) quality: role of vitamin E and selenium]]></article-title>
<source><![CDATA[Anim Reprod Sci]]></source>
<year>2015</year>
<volume>54</volume>
<page-range>1525-36</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[Luck]]></surname>
<given-names><![CDATA[MR]]></given-names>
</name>
<name>
<surname><![CDATA[Jeyaseelan]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Scholes]]></surname>
<given-names><![CDATA[RA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ascorbic acid and fertility]]></article-title>
<source><![CDATA[Biol Reprod]]></source>
<year>1995</year>
<volume>52</volume>
<page-range>262-6</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[McIntosh]]></surname>
<given-names><![CDATA[RA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ascorbic acid (vitamin C) for the treatment of impotency in bulls and sterility in cows]]></article-title>
<source><![CDATA[Can J Comp Med]]></source>
<year>1941</year>
<volume>5</volume>
<page-range>267-8</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="book">
<collab>National Research Council</collab>
<source><![CDATA[Nutrient requirements of dairy cattle]]></source>
<year>2001</year>
<edition>7th</edition>
<publisher-loc><![CDATA[Washington, DC, USA ]]></publisher-loc>
<publisher-name><![CDATA[National Academic Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[González-Maldonado]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[RR]]></given-names>
</name>
<name>
<surname><![CDATA[De Lara]]></surname>
<given-names><![CDATA[RR]]></given-names>
</name>
<name>
<surname><![CDATA[Ramirez]]></surname>
<given-names><![CDATA[GV]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impacts of vitamin C and E injections on ovarian structures and fertility in Holstein cows under heat stress conditions]]></article-title>
<source><![CDATA[Turk J Vet Anim Sci]]></source>
<year>2017</year>
<volume>41</volume>
<page-range>345-50</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[Thomas]]></surname>
<given-names><![CDATA[FH]]></given-names>
</name>
<name>
<surname><![CDATA[Leask]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Srsen]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Riley]]></surname>
<given-names><![CDATA[SC]]></given-names>
</name>
<name>
<surname><![CDATA[Spears]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Telfer]]></surname>
<given-names><![CDATA[EE]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of ascorbic acid on health and morphology of bovine preantral follicles during long-term culture]]></article-title>
<source><![CDATA[Reproduction]]></source>
<year>2001</year>
<volume>122</volume>
<page-range>487-95</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[Phillips]]></surname>
<given-names><![CDATA[PH]]></given-names>
</name>
<name>
<surname><![CDATA[Lardy]]></surname>
<given-names><![CDATA[HA]]></given-names>
</name>
<name>
<surname><![CDATA[Boyer]]></surname>
<given-names><![CDATA[PD]]></given-names>
</name>
<name>
<surname><![CDATA[Werner]]></surname>
<given-names><![CDATA[GM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The relationship of ascorbic acid to reproduction in the cow]]></article-title>
<source><![CDATA[J Dairy Sci]]></source>
<year>1941</year>
<volume>24</volume>
<page-range>153-8</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[Luck]]></surname>
<given-names><![CDATA[MR]]></given-names>
</name>
<name>
<surname><![CDATA[Zhao]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Identification and measurement of collagen in the bovine corpus luteum and its relationship with ascorbic acid and tissue development]]></article-title>
<source><![CDATA[J Reprod Fertil]]></source>
<year>1993</year>
<volume>99</volume>
<page-range>647-52</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[Serpek]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Baspinar]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Haliloglu]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Erdem]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The relationship between ascorbic acid, oestradiol 17&#946; and progesterone in plasma and in ovaries during the sexual cycle in cattle]]></article-title>
<source><![CDATA[Rev Med Vet]]></source>
<year>2001</year>
<volume>152</volume>
<page-range>253-60</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="book">
<collab>Canadian Council on Animal Care in Science</collab>
<source><![CDATA[CCAC guidelines on: The care and use of farm animals in research, teaching and testing]]></source>
<year>2009</year>
<publisher-loc><![CDATA[Ottawa, CA ]]></publisher-loc>
<publisher-name><![CDATA[Canadian Council on Animal Care]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arnaud]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Fortis]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Blachier]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Kia]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Favier]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Simultaneous determination of retinol, alpha-tocopherol and beta-carotene in serum by isocratic high-performance liquid chromatography]]></article-title>
<source><![CDATA[J Chromatogr]]></source>
<year>1991</year>
<volume>572</volume>
<page-range>103-16</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[Lopes]]></surname>
<given-names><![CDATA[AS]]></given-names>
</name>
<name>
<surname><![CDATA[Butler]]></surname>
<given-names><![CDATA[ST]]></given-names>
</name>
<name>
<surname><![CDATA[Gilbert]]></surname>
<given-names><![CDATA[RO]]></given-names>
</name>
<name>
<surname><![CDATA[Butler]]></surname>
<given-names><![CDATA[WR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relationship of pre-ovulatory follicle size, estradiol concentrations and season to pregnancy outcome in dairy cows]]></article-title>
<source><![CDATA[Anim Reprod Sci]]></source>
<year>2007</year>
<volume>99</volume>
<page-range>34-43</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[Keskin]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Mecito&#287;lu]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Bilen]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Güner]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Orman]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Okut]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Gümen]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The effect of ovulatory follicle size at the time of insemination on pregnancy rate in lactating dairy cows]]></article-title>
<source><![CDATA[Turkish J Vet Anim Sci]]></source>
<year>2016</year>
<volume>40</volume>
<page-range>68-74</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[Arlotto]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Schwartz]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[First]]></surname>
<given-names><![CDATA[NL]]></given-names>
</name>
<name>
<surname><![CDATA[Leibfried-Rutledge]]></surname>
<given-names><![CDATA[ML]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Aspects of follicle and oocyte stage that affect in vitro maturation and development of bovine oocytes]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>1996</year>
<volume>45</volume>
<page-range>943-56</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[Otoi]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Yamamoto]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Koyama]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Tachikawa]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Suzuki]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Bovine oocyte diameter in relation to developmental competence]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>1997</year>
<volume>48</volume>
<page-range>769-74</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[Robinson]]></surname>
<given-names><![CDATA[RS]]></given-names>
</name>
<name>
<surname><![CDATA[Hammond]]></surname>
<given-names><![CDATA[AJ]]></given-names>
</name>
<name>
<surname><![CDATA[Hunter]]></surname>
<given-names><![CDATA[MG]]></given-names>
</name>
<name>
<surname><![CDATA[Mann]]></surname>
<given-names><![CDATA[GE]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The induction of a delayed post-ovulatory progesterone rise in dairy cows: a novel model]]></article-title>
<source><![CDATA[Domest Anim Endocrinol]]></source>
<year>2005</year>
<volume>28</volume>
<page-range>285-95</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[Atkins]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[MF]]></given-names>
</name>
<name>
<surname><![CDATA[MacNeil]]></surname>
<given-names><![CDATA[MD]]></given-names>
</name>
<name>
<surname><![CDATA[Jinks]]></surname>
<given-names><![CDATA[EM]]></given-names>
</name>
<name>
<surname><![CDATA[Abreu]]></surname>
<given-names><![CDATA[FM]]></given-names>
</name>
<name>
<surname><![CDATA[Alexander]]></surname>
<given-names><![CDATA[LJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pregnancy establishment and maintenance in cattle]]></article-title>
<source><![CDATA[J Anim Sci]]></source>
<year>2013</year>
<volume>91</volume>
<page-range>722-33</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[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>
<page-range>377-83</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[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[PNAS]]></source>
<year>2005</year>
<volume>102</volume>
<page-range>5268-73</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[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 for 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>
<page-range>3698-710</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[Rapoport]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Sklan]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Wolfenson]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Shaham-Albalancy]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Hanukoglu]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Antioxidant capacity is correlated with steroidogenic status of the corpus luteum during the bovine estrous cycle]]></article-title>
<source><![CDATA[Biochim Biophys Acta]]></source>
<year>1998</year>
<volume>1380</volume>
<page-range>133-40</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[Kayacik]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Salmanoúlu]]></surname>
<given-names><![CDATA[MR]]></given-names>
</name>
<name>
<surname><![CDATA[Polat]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Ozluer]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation of the corpus luteum size throughout the cycle by ultrasonography and progesterone assay in cows]]></article-title>
<source><![CDATA[Turkish J Vet Anim Sci]]></source>
<year>2005</year>
<volume>29</volume>
<page-range>1311-6</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[Assey]]></surname>
<given-names><![CDATA[RJ]]></given-names>
</name>
<name>
<surname><![CDATA[Purwantara]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Greve]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Hyttel]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Schmidt]]></surname>
<given-names><![CDATA[MH]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Corpus luteum size and plasma progesterone levels in cattle after cloprostenol-induced luteolysis]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>1993</year>
<volume>39</volume>
<page-range>1321-30</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[Mann]]></surname>
<given-names><![CDATA[GE]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Corpus luteum size and plasma progesterone concentration in cows]]></article-title>
<source><![CDATA[Anim Reprod Sci]]></source>
<year>2009</year>
<volume>115</volume>
<page-range>296-9</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[Veronesi]]></surname>
<given-names><![CDATA[MC]]></given-names>
</name>
<name>
<surname><![CDATA[Gabai]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Battocchio]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Mollo]]></surname>
<given-names><![CDATA[A]]></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>
</person-group>
<article-title xml:lang=""><![CDATA[Ultrasonographic appearance of tissue is a better indicator of CL function than CL diameter measurement in dairy cows]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2002</year>
<volume>68</volume>
<page-range>61-8</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[Richardson]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
<name>
<surname><![CDATA[Lemenager]]></surname>
<given-names><![CDATA[RP]]></given-names>
</name>
<name>
<surname><![CDATA[Pyatt]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Lake]]></surname>
<given-names><![CDATA[SL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Natural source vitamin E supplementation and reproductive efficiency in beef cows]]></article-title>
<source><![CDATA[Western Am Soc Anim Sci]]></source>
<year>2008</year>
<volume>59</volume>
<page-range>339-42</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[Vierk]]></surname>
<given-names><![CDATA[JE]]></given-names>
</name>
<name>
<surname><![CDATA[Murdoch]]></surname>
<given-names><![CDATA[WJ]]></given-names>
</name>
<name>
<surname><![CDATA[Austin]]></surname>
<given-names><![CDATA[KJ]]></given-names>
</name>
<name>
<surname><![CDATA[Van-Kirk]]></surname>
<given-names><![CDATA[EA]]></given-names>
</name>
<name>
<surname><![CDATA[Hansen]]></surname>
<given-names><![CDATA[TR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Antiluteolytic effect of alpha tocopherol in ewes]]></article-title>
<source><![CDATA[J Dairy Sci]]></source>
<year>1998</year>
<volume>81</volume>
<page-range>372</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[Olson]]></surname>
<given-names><![CDATA[SE]]></given-names>
</name>
<name>
<surname><![CDATA[Seidel Jr]]></surname>
<given-names><![CDATA[GE]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Culture of in vitro-produced bovine embryos with vitamin E improves development in vitro and after transfer to recipients]]></article-title>
<source><![CDATA[Biol Reprod]]></source>
<year>2000</year>
<volume>62</volume>
<page-range>248-52</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[Sales]]></surname>
<given-names><![CDATA[JN]]></given-names>
</name>
<name>
<surname><![CDATA[Dias]]></surname>
<given-names><![CDATA[LM]]></given-names>
</name>
<name>
<surname><![CDATA[Viveiros]]></surname>
<given-names><![CDATA[AT]]></given-names>
</name>
<name>
<surname><![CDATA[Pereira]]></surname>
<given-names><![CDATA[MN]]></given-names>
</name>
<name>
<surname><![CDATA[Souza]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Embryo production and quality of Holstein heifers and cows with beta-carotene and tocopherol]]></article-title>
<source><![CDATA[Anim Reprod Sci]]></source>
<year>2008</year>
<volume>106</volume>
<page-range>77-89</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[Lonergan]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[New insights into the function of progesterone in early pregnancy]]></article-title>
<source><![CDATA[Anim Frontiers]]></source>
<year>2015</year>
<volume>5</volume>
<page-range>12-7</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[Stronge]]></surname>
<given-names><![CDATA[AJ]]></given-names>
</name>
<name>
<surname><![CDATA[Sreenan]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Diskin]]></surname>
<given-names><![CDATA[MG]]></given-names>
</name>
<name>
<surname><![CDATA[Mee]]></surname>
<given-names><![CDATA[JF]]></given-names>
</name>
<name>
<surname><![CDATA[Kenny]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
<name>
<surname><![CDATA[Morris]]></surname>
<given-names><![CDATA[DG]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Post-insemination milk progesterone concentration and embryo survival in dairy cows]]></article-title>
<source><![CDATA[Theriogenology]]></source>
<year>2005</year>
<volume>64</volume>
<page-range>1212-24</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[Randi]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Fernandez-Fuertes]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[McDonald]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Forde]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Kelly]]></surname>
<given-names><![CDATA[AK]]></given-names>
</name>
<name>
<surname><![CDATA[Bastos-Amorin]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Asynchronous embryo transfer as a tool to understand embryo-uterine interaction in cattle: is a large conceptus a good thing?]]></article-title>
<source><![CDATA[Reprod Fertil Develop]]></source>
<year>2015</year>
<volume>28</volume>
<page-range>1999-2006</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[Kenyon]]></surname>
<given-names><![CDATA[AG]]></given-names>
</name>
<name>
<surname><![CDATA[Mendonça]]></surname>
<given-names><![CDATA[LG]]></given-names>
</name>
<name>
<surname><![CDATA[Lopes Jr]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Lima]]></surname>
<given-names><![CDATA[JR]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[JE]]></given-names>
</name>
<name>
<surname><![CDATA[Chebel]]></surname>
<given-names><![CDATA[RC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Minimal progesterone concentration required for embryo survival after embryo transfer in lactating Holstein cows]]></article-title>
<source><![CDATA[Anim Reprod Sci]]></source>
<year>2013</year>
<volume>136</volume>
<page-range>223-30</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[Yovich]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Conceicao]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Stanger]]></surname>
<given-names><![CDATA[JD]]></given-names>
</name>
<name>
<surname><![CDATA[Hinchliffe]]></surname>
<given-names><![CDATA[PM]]></given-names>
</name>
<name>
<surname><![CDATA[Keane]]></surname>
<given-names><![CDATA[KN]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mid-luteal serum progesterone concentrations govern implantation rates for cryopreserved embryo transfers conducted under hormone replacement]]></article-title>
<source><![CDATA[Reproductive Biomed Online]]></source>
<year>2015</year>
<volume>31</volume>
<page-range>180-91</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
