<?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>1692-3561</journal-id>
<journal-title><![CDATA[Biotecnología en el Sector Agropecuario y Agroindustrial]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.Bio.Agro]]></abbrev-journal-title>
<issn>1692-3561</issn>
<publisher>
<publisher-name><![CDATA[Taller Editorial Universidad del Cauca]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1692-35612021000200108</article-id>
<article-id pub-id-type="doi">10.18684/bsaa.v19.n2.2021.1603</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Suplementación estratégica con arbustivas forrajeras en terneros BON × Cebú destetados precozmente en Antioquia, Colombia]]></article-title>
<article-title xml:lang="en"><![CDATA[Strategic supplementation with forage shrubs in early weaning calves BON × Zebu in Antioquia, Colombia]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[ARGÜELLO-RANGEL]]></surname>
<given-names><![CDATA[JERALDYN,]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[MAHECHA-LEDESMA]]></surname>
<given-names><![CDATA[LILIANA,]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[ANGULO-ARIZALA]]></surname>
<given-names><![CDATA[JOAQUÍN,]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Antioquia Facultad de Ciencias Agrarias Grupo de Investigación en Ciencias Agrarias (GRICA)]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Antioquia Facultad de Ciencias Agrarias Grupo de Investigación en Ciencias Agrarias (GRICA)]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Antioquia Facultad de Ciencias Agrarias Grupo de Investigación en Ciencias Agrarias (GRICA)]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>19</volume>
<numero>2</numero>
<fpage>108</fpage>
<lpage>118</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S1692-35612021000200108&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S1692-35612021000200108&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S1692-35612021000200108&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La crianza, es una etapa en la se requiere una óptima recuperación reproductiva de las vacas, y crecimiento de los terneros. El objetivo del estudio fue evaluar el uso de la suplementación estratégica con ensilaje de arbustivas forrajeras, en el destete precoz de ganado BON × Cebú. Se realizó un ensayo con 14 terneros, de 5,2 ± 1,05 meses de edad y 127,57 ± 30,47 kg de peso, distribuidos aleatoriamente en un tratamiento control (To), en lactancia permanente, y un tratamiento experimental (Tex) en destete precoz. En Tex, los animales fueron asignados a un sistema de pastoreo y suplementación con ensilaje mixto a razón de 655 g/animal/día. El desarrollo corporal y las ganancias de peso en los tratamientos, fueron evaluados durante 90 días. Se realizaron mediciones de consumo, peso de terneros y madres, así como del estado reproductivo de estas. Los datos fueron analizados en el software estadístico R Project. No hubo efecto del tratamiento, ni de la interacción tratamiento × mes en el desarrollo corporal y ganancias de peso de los terneros, mientras que, las madres de Tex presentaron diferencias significativas en el peso y estado reproductivo. Por lo tanto, destetar precozmente favorece la recuperación reproductiva de las vacas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Calf-raising is a stage in which optimal reproductive recovery of dams is required, and growth of calves. The objective of the study was to evaluate the use of strategic supplementation with silage shrubs, in the early weaning of BON × Zebu cattle. It was developed a research with 14 calves, of 5,2 months±1,05 of age and 127,57 ± 30,47 kg of weight, randomly distributed in a control treatment (To). In To treatment animals were in permanent lactation, and in the experimental treatment (Tex) animals were early weaned. In Tex treatment, the animals were assigned to a grazing system, with a mixed silage supplementation at a rate of 655 g/anymal/day. Body performance and weight gains in treatments were evaluated for 90 days. During this period measurements of consumption and weighing of the calves were made. The reproductive status of the dams was evaluated too. The data were analyzed with the statistical software R Project. There was no effect for the treatment, and for the treatment × month interaction on the body performance and weight gain of the calves, while Tex dams presented significant differences in weight and reproductive status. Therefore, early weaning favors the reproductive recovery of the dams.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Arbustivas forrajeras]]></kwd>
<kwd lng="es"><![CDATA[Ciclo estral]]></kwd>
<kwd lng="es"><![CDATA[Cratylia argentea]]></kwd>
<kwd lng="es"><![CDATA[Crescentia cujete]]></kwd>
<kwd lng="es"><![CDATA[Destete precoz]]></kwd>
<kwd lng="es"><![CDATA[Ensilaje]]></kwd>
<kwd lng="es"><![CDATA[Ganancia de peso]]></kwd>
<kwd lng="es"><![CDATA[Gliricidia sepium]]></kwd>
<kwd lng="es"><![CDATA[Producción bovina]]></kwd>
<kwd lng="es"><![CDATA[Sostenibilidad]]></kwd>
<kwd lng="es"><![CDATA[Suplementación estratégica]]></kwd>
<kwd lng="es"><![CDATA[Tithonia diversifolia.]]></kwd>
<kwd lng="en"><![CDATA[Cratylia argentea]]></kwd>
<kwd lng="en"><![CDATA[Crescentia cujete]]></kwd>
<kwd lng="en"><![CDATA[Early weaning]]></kwd>
<kwd lng="en"><![CDATA[Forage shrubs]]></kwd>
<kwd lng="en"><![CDATA[Gliricidia sepium]]></kwd>
<kwd lng="en"><![CDATA[Oestrous cycle]]></kwd>
<kwd lng="en"><![CDATA[Silage]]></kwd>
<kwd lng="en"><![CDATA[Weight gain]]></kwd>
<kwd lng="en"><![CDATA[Livestock production]]></kwd>
<kwd lng="en"><![CDATA[Strategic supplementation]]></kwd>
<kwd lng="en"><![CDATA[Sustainability]]></kwd>
<kwd lng="en"><![CDATA[Tithonia diversifolia]]></kwd>
</kwd-group>
</article-meta>
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