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Biblioteca (s) :  INIA La Estanzuela; INIA Treinta y Tres.
Fecha :  23/04/2021
Actualizado :  02/09/2022
Tipo de producción científica :  Artículos en Revistas Indexadas Nacionales
Autor :  CLARIGET, J.M.; LEMA, O.M.; LA MANNA, A.; PEREZ, E.; BANCHERO, G.; FERNANDEZ, E.
Afiliación :  JUAN MANUEL CLARIGET BRIZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; OSCAR MARIO LEMA QUEIJO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALEJANDRO FRANCISCO LA MANNA ALONSO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; EDUARDO FABIAN PEREZ ARRUTTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ENRIQUE GENARO FERNANDEZ RODRIGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título :  Estimated beef cattle performance under intensive grazing systems in Uruguay. [Estimación del desempeño de bovinos para carne en sistemas pastoriles].[Estimativa do desempenho de bovinos de corte em sistemas pastoris intensivos do Uruguai].
Fecha de publicación :  2021
Fuente / Imprenta :  Agrociencia Uruguay, Vol. 25, no. 1, Apr. 2021, p. e107. DOI: https://doi.org/10.31285/AGRO.25.107.
ISSN :  e-ISSN: 2301-1548
DOI :  10.31285/AGRO.25.107
Idioma :  Inglés
Notas :  Article history: Received 24 Jul 2019/Accepted 25 Feb 2021/Published 23 Apr 2021. Correspondence: jclariget@inia.org.uy.
Contenido :  Abstract:The objective of this study was to analyze the effect of the quantity and quality of the feed offered on the performance of male beef cattle, >6 months old, on intensive grazing systems in Uruguay. Two hundred and fifty-four results from different experimental trials (nexp=68) performed between 1991 and 2020 by different research institutions in Uruguay were compiled and analyzed. The experiments included feeding studies with cultivated pastures as a single nutritional source (nexp=61), as well as supplementation studies on the same type of pastures (nexp=49). Simple, quadratic, multiple linear regressions and recursive partitions were performed to synthesize the information. Quadratic relationships between forage allowance (FA) and average daily gain (ADG) were observed for the different animal categories and seasons of the year. Including other parameters such as initial body weight and supplementation with energy concentrates or silages allowed to predict the ADG of animals under a wide range of feeding alternatives. Briefly, low FA levels (≤1.75 %BW) limit animal performance to maintenance gain conditions (0.2 kg/day). To achieve adequate levels of ADG (0.6-0.7 kg/day), with a low to moderate FA (between 1.75 to 3.5 %BW), the nutritional value of pasture needs to reach at least level 3 of quality (>58 %ODM, >13 %CP, <50 %NDF, >21 %Leg and <19 %DR). These daily gains can be exceeded if the FA is >3.5 %BW (ADG in the range of 0.7 to 1.0 kg/day). The increase... Presentar Todo
Palabras claves :  CULTIVATED PASTURE; FATTENING; PASTURAS CULTIVADAS; REARING; REVIEW; SUPPLEMENTATION.
Thesagro :  BOVINOS DE CARNE; ENGORDE; RECRIA; SUPLEMENTACION.
Asunto categoría :  L01 Ganadería
URL :  http://www.ainfo.inia.uy/digital/bitstream/item/16642/1/107-Article-Text-3971-1-10-20210423.pdf
Marc :  Presentar Marc Completo
Registro original :  INIA La Estanzuela (LE)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LE103320 - 1PXIAP - DDPP/Agrociencia/2021
TT103421 - 1PXIAP - DDPP/Agrociencia/2021

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