<?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>S2007-11242021000100105</article-id>
<article-id pub-id-type="doi">10.22319/rmcp.v12i1.5076</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Nutritional management of steers raised in graze and in feedlot: intake, digestibility, performance and economic viability]]></article-title>
<article-title xml:lang="es"><![CDATA[Manejo nutricional de novillos criados en pastoreo y en corral: efectos en el consumo, digestibilidad, rendimiento y viabilidad económica]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Souza]]></surname>
<given-names><![CDATA[Sinvaldo Oliveira de]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[Robério Rodrigues]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[Fabiano Ferreira da]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[Ana Paula Gomes da]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[Marceliana da Conceição]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barbosa]]></surname>
<given-names><![CDATA[Rodrigo Paiva]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Xavier]]></surname>
<given-names><![CDATA[Raul Lima]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Paixão]]></surname>
<given-names><![CDATA[Tarcísio Ribeiro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Costa]]></surname>
<given-names><![CDATA[Gabriel Dallapicola da]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Peruna]]></surname>
<given-names><![CDATA[Adriane Batista]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Souza]]></surname>
<given-names><![CDATA[Mariana Santos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[Laize Vieira]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade Estadual do Sudoeste da Bahia  ]]></institution>
<addr-line><![CDATA[Itapetinga Bahia]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<volume>12</volume>
<numero>1</numero>
<fpage>105</fpage>
<lpage>119</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11242021000100105&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11242021000100105&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11242021000100105&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: This study aimed to evaluate nutrient intake and digestibility, performance and economic viability of steers during the rearing phase in Brachiaria brizantha cultivar Marandu graze and in feedlot. Were used fifty crossbred steers in the rearing phase, with a mean weight of 275 ± 8.18 kg, distributed in a completely randomized design with ten replications per treatments: Mineral supplementation, nitrogen supplementation, Concentrate supplementation in the order of 1 and 2 g/kg body weight and total feedlot. The total dry matter intake and body weight showed a difference (P&lt;0.05) for animals in feedlot. Crude protein, ether extract, neutral detergent fiber corrected for ashes and protein, non-fibrous carbohydrates, total digestible nutrients showed differences for the animals that received mineral supplementation in comparison to the other managements adopted. The same performance was observed for animals in feedlot. The digestibility coefficients of dry matter, crude protein, ether extract, non-fibrous carbohydrates and total digestible nutrients showed a difference (P&lt;0.05) for the animals that received mineral supplementation, in comparison to the other managements adopted. (P&lt;0.05). The mean daily gain was lower (P&lt;0.05) for animals receiving mineral supplementation. The gross margin was higher (P&lt;0.05) for animals handled in feedlot. Considering the obtained results, it was possible to observe that the animals kept in graze with good availability of dry matter presented satisfactory performance. It is feasible to confine the animals in rearing, since it shortens the production cycle, generating favorable economic results.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Este estudio buscó evaluar la ingesta y digestibilidad de nutrientes, el rendimiento y la viabilidad económica de novillos alimentados con Brachiaria brizantha cultivar Marandú y criados bajo sistemas de pastoreo y engorda en corral. Se utilizaron 50 novillos cruzados en fase de crecimiento con un peso medio de 275 ± 8.18 kg. Los novillos se distribuyeron en un diseño completamente al azar con 10 repeticiones por tratamiento: suplementación mineral, suplementación de nitrógeno, suplementación del concentrado en el orden de 1 y 2 g/kg de peso corporal y engorda total en corral total. El consumo de materia seca total y el peso corporal fueron significativamente diferentes (P&lt;0.05) para los animales en engorde en corral. La proteína cruda, el extracto etéreo, la fibra detergente neutra corregida para cenizas y proteína, los carbohidratos no fibrosos y los nutrientes digestibles totales fueron diferentes en los animales suplementados con minerales en comparación con los otros tratamientos. El mismo rendimiento se observó en los animales en engorde. Los coeficientes de digestibilidad de materia seca, proteína cruda, extracto etéreo, carbohidratos no fibrosos y nutrientes digestibles totales en los animales suplementados con minerales fueron significativamente diferentes (P&lt;0.05) a los otros tratamientos. (P&lt;0.05). La ganancia diaria promedio fue menor (P&lt;0.05) en los animales suplementados con animales. El mayor margen bruto (P&lt;0.05) se observó en los animales bajo engorde en corral. Los resultados obtenidos en este estudio indican que los animales en pastoreo con una buena disponibilidad de materia seca presentan un rendimiento satisfactorio. Es factible confinar a los animales en fase de cría debido a que se acorta el ciclo de producción y se obtienen resultados económicos favorables.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Cattle]]></kwd>
<kwd lng="en"><![CDATA[Ingestion]]></kwd>
<kwd lng="en"><![CDATA[Management]]></kwd>
<kwd lng="en"><![CDATA[Nutrients]]></kwd>
<kwd lng="es"><![CDATA[Ganado bovino]]></kwd>
<kwd lng="es"><![CDATA[Ingesta]]></kwd>
<kwd lng="es"><![CDATA[Manejo]]></kwd>
<kwd lng="es"><![CDATA[Nutrientes]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Ítavo]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Rimoli]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Ítavo]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Dias]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comportamento ingestivo diurno de bovinos em confinamento e em pastagens]]></article-title>
<source><![CDATA[Archiv Zootec]]></source>
<year>2007</year>
<volume>5</volume>
<numero>03</numero>
<issue>03</issue>
<page-range>67-77</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
