<?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>1665-1456</journal-id>
<journal-title><![CDATA[Biotecnia]]></journal-title>
<abbrev-journal-title><![CDATA[Biotecnia]]></abbrev-journal-title>
<issn>1665-1456</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Sonora, División de Ciencias Biológicas y de la Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-14562021000100086</article-id>
<article-id pub-id-type="doi">10.18633/biotecnia.v23i1.1168</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efecto del periodo seco en cabras bajo condiciones de pastoreo, en el volumen y cantidad de compuestos lácteos subsecuente]]></article-title>
<article-title xml:lang="en"><![CDATA[Effect of dry-off period in goats under grazing conditions, on milk production and compounds quantity]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Avilés Ruíz]]></surname>
<given-names><![CDATA[Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Delgadillo Sánchez]]></surname>
<given-names><![CDATA[José Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores]]></surname>
<given-names><![CDATA[José Alfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores Nájera]]></surname>
<given-names><![CDATA[Manuel de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vargas Cruz]]></surname>
<given-names><![CDATA[Alexis Adrián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barrón Bravo]]></surname>
<given-names><![CDATA[Oscar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez Hernández]]></surname>
<given-names><![CDATA[Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Hernández]]></surname>
<given-names><![CDATA[Horacio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Agraria Antonio Narro Posgrado en Ciencias Agrarias Centro de Investigación en Reproducción Caprina]]></institution>
<addr-line><![CDATA[Torreón Coahuila]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias  ]]></institution>
<addr-line><![CDATA[Altamira Tamaulipas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias Campo Experimental La Laguna ]]></institution>
<addr-line><![CDATA[Matamoros Coahuila]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<volume>23</volume>
<numero>1</numero>
<fpage>86</fpage>
<lpage>91</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-14562021000100086&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-14562021000100086&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-14562021000100086&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El objetivo del presente fue determinar si el practicar el periodo seco en cabras bajo condiciones de pastoreo incrementa la producción láctea y la cantidad de los componentes químicos de la leche. En el grupo de cabras sin periodo seco los animales se mantuvieron diariamente en ordeño manual hasta la ocurrencia del parto (SPS; n = 9). En las cabras del grupo con periodo seco se practicó el secado al suspender el ordeño manual desde 50 días antes del parto (CPS; n = 11). Se utilizó un diseño factorial con un modelo lineal de efectos fijos para evaluar la producción de leche y la cantidad de sus componentes en respuesta al tratamiento, el factor tiempo y la interacción tiempo×tratamiento. Existió un efecto del tratamiento sobre la producción de leche durante la lactancia, por lo que ésta fue mayor para el grupo CPS que para el grupo SPS (P&lt;0.001). De igual manera la cantidad de componentes de la leche mostró un efecto significativo del tratamiento (P&lt;0.001). Se concluye que en cabras lactantes mantenidas en condiciones de pastoreo el practicar el periodo seco promueve una mayor producción de leche en la subsiguiente lactancia y por ello también una mayor cantidad de sus contenidos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstrac The objective of the present work was to investigate if the practice of a dry-off period in goats maintained under grazing conditions, increases milk yield and therefore the quantity of its compounds. In goats without dry-off, females were hand milked until parturition (SPS; n = 9). Hand milking of goats from dry-off period was stopped 50 days prior occurrence of parturition (CPS; n = 11). We used a factorial design with a lineal model with fixed effects to compare milk yield and quantity of its main compounds, in response to the treatment, time, and time × treatment interaction. There was a treatment effect on milk yield during lactation, with higher values in CPS group than SPS group (P&lt;0.001). In the same way, the quantity of milk compounds was influenced by the treatment (P&lt;0.001). In conclusion, the practice of the dry period in goats under grazing conditions, increase milk production during subsequent lactation and therefore the quantity of its components.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Periodo seco]]></kwd>
<kwd lng="es"><![CDATA[Cabras]]></kwd>
<kwd lng="es"><![CDATA[Lactancia]]></kwd>
<kwd lng="es"><![CDATA[producción de leche]]></kwd>
<kwd lng="es"><![CDATA[pastoreo]]></kwd>
<kwd lng="en"><![CDATA[Dry-off period]]></kwd>
<kwd lng="en"><![CDATA[goats]]></kwd>
<kwd lng="en"><![CDATA[lactation]]></kwd>
<kwd lng="en"><![CDATA[milk yield]]></kwd>
<kwd lng="en"><![CDATA[grazing]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Albenzio]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Santillo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Avondo]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Nudda]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Chessa]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Pirisi]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Banni]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nutritional properties of small ruminant food products and their role in human health]]></article-title>
<source><![CDATA[Small Ruminant Research]]></source>
<year>2016</year>
<volume>135</volume>
<page-range>3-12</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Baraza]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Ángeles]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Valiente]]></surname>
<given-names><![CDATA[B.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nuevos recursos naturales como complemento de la dieta de caprinos durante la época seca, en el Valle de Tehuacán, México]]></article-title>
<source><![CDATA[Interciencia]]></source>
<year>2008</year>
<volume>33</volume>
<page-range>12-5</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Caja]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Salama]]></surname>
<given-names><![CDATA[A.A.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Such]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Omitting the dry-off period negatively affects colostrum and milk yield in dairy goats]]></article-title>
<source><![CDATA[Journal of Dairy Science]]></source>
<year>2006</year>
<volume>89</volume>
<page-range>4220-8</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Capuco]]></surname>
<given-names><![CDATA[A.V.]]></given-names>
</name>
<name>
<surname><![CDATA[Akers]]></surname>
<given-names><![CDATA[R.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[J.J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mammary growth in Holstein cows during the dry period: Quantification of nucleic acids and histology]]></article-title>
<source><![CDATA[Journal of Dairy Science]]></source>
<year>1997</year>
<volume>80</volume>
<page-range>477-87</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chebel]]></surname>
<given-names><![CDATA[R.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Mendonça]]></surname>
<given-names><![CDATA[L.G.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Baruselli]]></surname>
<given-names><![CDATA[P.S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Association between body condition score change during the dry period and postpartum health and performance]]></article-title>
<source><![CDATA[Journal of Dairy Science]]></source>
<year>2018</year>
<volume>101</volume>
<page-range>4595-614</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Duarte]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Flores]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Malpaux]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Delgadillo]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Reproductive seasonality in female goats adapted to a subtropical environment persists independently of food availability]]></article-title>
<source><![CDATA[Domestic Animal Endocrinology]]></source>
<year>2008</year>
<volume>35</volume>
<page-range>362-70</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Emediato]]></surname>
<given-names><![CDATA[R.M.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Siqueira]]></surname>
<given-names><![CDATA[E.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Stradiotto]]></surname>
<given-names><![CDATA[M.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Maesta]]></surname>
<given-names><![CDATA[S.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relationship between udder measurements and milk yield in Bergamasca in Brazil]]></article-title>
<source><![CDATA[Small Ruminant Research]]></source>
<year>2008</year>
<volume>75</volume>
<page-range>232-5</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Escareño]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Wurzinger]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Pastor]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Salinas]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Solkner]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Iñiguez]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[La cabra y los sistemas de producción caprina de los pequeños productores de la Comarca Lagunera, en el norte de México]]></article-title>
<source><![CDATA[Revista Chapingo Serie Ciencias Forestales y del Ambiente]]></source>
<year>2011</year>
<volume>17</volume>
<page-range>235-46</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García y González]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Flores]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Delgadillo]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[González-Quirino]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández]]></surname>
<given-names><![CDATA[I.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Terrazas]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Early nursing behaviour in ungulate mothers with hider offspring (Capra hircus): Correlations between milk yield and kid weight]]></article-title>
<source><![CDATA[Small Ruminant Research]]></source>
<year>2017</year>
<volume>151</volume>
<page-range>59-65</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kilkenny]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Browne]]></surname>
<given-names><![CDATA[W.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Cuthill]]></surname>
<given-names><![CDATA[I.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Emerson]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Altman]]></surname>
<given-names><![CDATA[D.G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Animal research: reporting in vivo. Public Library of Science]]></article-title>
<source><![CDATA[Biology]]></source>
<year>2010</year>
<volume>8</volume>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mantovani]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Marinelli]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Bailoni]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Gabai]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Bittante]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Omission of dry period and effects on the subsequent lactation curve and on milk quality around calving in Italian Holstein cows]]></article-title>
<source><![CDATA[Italian Journal of Animal Science]]></source>
<year>2010</year>
<volume>9</volume>
<page-range>110-8</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Montaldo]]></surname>
<given-names><![CDATA[H.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Torres-Hernández]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Valencia-Posadas]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Goat breeding research in México]]></article-title>
<source><![CDATA[Small Ruminant Research]]></source>
<year>2010</year>
<volume>89</volume>
<page-range>155-63</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ricordeau]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Boccard]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Denamur]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mesure de la production laiti&#1104;re des brebis pendant la période d´allaitement]]></article-title>
<source><![CDATA[Annales de Zootechnie]]></source>
<year>1960</year>
<volume>9</volume>
<page-range>97-120</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<collab>SAGARPA</collab>
<article-title xml:lang=""><![CDATA[Norma Oficial Mexicana NOM-062-ZOO-1999, Especificaciones técnicas para la producción, cuidado y uso de los animales de laboratorio]]></article-title>
<source><![CDATA[Diario Oficial de la Federación]]></source>
<year>2001</year>
<publisher-loc><![CDATA[Ciudad de México, México ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Salama]]></surname>
<given-names><![CDATA[A.A.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Caja]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Such]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Cassals]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Albanell]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of pregnancy and extended lactation on milk production in dairy goats milked once daily]]></article-title>
<source><![CDATA[Journal of Dairy Science]]></source>
<year>2005</year>
<volume>88</volume>
<page-range>3894-904</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<collab>SIAP</collab>
<source><![CDATA[Población caprina en México 2008-2017]]></source>
<year>2017</year>
<publisher-loc><![CDATA[Ciudad de México, México ]]></publisher-loc>
<publisher-name><![CDATA[Secretaría de agricultura, ganadería desarrollo rural pesca y alimentación]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[SØrensen]]></surname>
<given-names><![CDATA[J.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Enevoldsen]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of dry period length on milk production in subsequent lactation]]></article-title>
<source><![CDATA[Journal of Dairy Science]]></source>
<year>1991</year>
<volume>79</volume>
<page-range>1277-83</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Turner]]></surname>
<given-names><![CDATA[C.W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[What cause high production?]]></article-title>
<source><![CDATA[Boletín 836]]></source>
<year>1965</year>
<publisher-name><![CDATA[University of Missouri]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Walkden-Brown]]></surname>
<given-names><![CDATA[S.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Restall]]></surname>
<given-names><![CDATA[B.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Scaramuzzi]]></surname>
<given-names><![CDATA[R.J]]></given-names>
</name>
<name>
<surname><![CDATA[Martin]]></surname>
<given-names><![CDATA[G.B.]]></given-names>
</name>
<name>
<surname><![CDATA[Blackberry]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Seasonality in male Australian cashmere goats: long term effects of castration and testosterone or oestradiol treatment on changes in LH, FSH, and prolactin concentrations, and body growth]]></article-title>
<source><![CDATA[Small Ruminant Research]]></source>
<year>1997</year>
<volume>26</volume>
<page-range>239-52</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
