| |
|
|
|
Registro completo
|
|
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 increased response in additional ADG (0.4-0.5 kg/day) by the effect of supplementation with energy concentrate was achieved with low FA levels (≤2.25 %BW). The prediction of additional ADG using a multiple linear regression parameter allows evaluating whether supplementation is appropriate.
Resumen: El objetivo del presente trabajo fue analizar el efecto de la cantidad y la calidad de alimento ofrecido sobre el desempeño de bovinos para carne machos, de más de 6 meses de vida, en sistemas pastoriles intensivos de Uruguay. Se compilaron y analizaron 254 resultados de diferentes trabajos experimentales (nexp=68) realizados por distintas instituciones de investigación de Uruguay entre los años 1991 y 2020. Los estudios incluyen trabajos de alimentación con pasturas cultivadas como única fuente nutricional (nexp=61), así como trabajos de
suplementación sobre ese mismo tipo de pasturas (nexp=49). Se realizaron regresiones lineales simples, cuadráticas, lineales múltiples y particiones recursivas de modo de sintetizar la información. Se observaron relaciones cuadráticas entre la asignación de forraje (AF) y la ganancia media diaria (GMD) para las diferentes categorías y estaciones del año. La inclusión de otros parámetros como peso vivo inicial y suplementación con concentrados energéticos o ensilajes permitió predecir la GMD de los animales bajo un amplio rango de alternativas de alimentación. Brevemente, niveles bajos de AF (?1,75 %PV) limitan el desempeño animal a condiciones de mantenimiento (0,2 kg/día). Para lograr niveles de GMD adecuados (0,6-0,7 kg/día), con AF bajas a moderadas (entre 1,75 a 3,5 %PV), se necesita que el valor nutritivo de la pastura alcance al menos el nivel 3 de calidad (>58 %DMO, >13 %PC, <50 %FDN, >21 %Leg y <19 %RS). Esas ganancias pueden superarse si la AF es >3,5 %PV (GMD en el rango de 0,7 a 1,0 kg/día). La mayor respuesta en GMD adicional (0,4-0,5 kg/día) por efecto de la suplementación con concentrados energéticos se logra con niveles de AF bajos (?2,25 %PV). La predicción de GMD adicional utilizando los parámetros de la regresión lineal múltiple permite evaluar la conveniencia de la suplementación. MenosAbstract: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 : |
LEADER 04928naa a2200337 a 4500
001 1061992
005 2022-09-02
008 2021 bl uuuu u00u1 u #d
022 $ae-ISSN: 2301-1548
024 7 $a10.31285/AGRO.25.107$2DOI
100 1 $aCLARIGET, J.M.
245 $aEstimated beef cattle performance under intensive grazing systems in Uruguay. [Estimación del desempeño de bovinos para carne en sistemas pastoriles].[Estimativa do desempenho de bovinos de corte em sistemas pastoris intensivos do Uruguai].$h[electronic resource]
260 $c2021
500 $aArticle history: Received 24 Jul 2019/Accepted 25 Feb 2021/Published 23 Apr 2021. Correspondence: jclariget@inia.org.uy.
520 $aAbstract: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 increased response in additional ADG (0.4-0.5 kg/day) by the effect of supplementation with energy concentrate was achieved with low FA levels (≤2.25 %BW). The prediction of additional ADG using a multiple linear regression parameter allows evaluating whether supplementation is appropriate. Resumen: El objetivo del presente trabajo fue analizar el efecto de la cantidad y la calidad de alimento ofrecido sobre el desempeño de bovinos para carne machos, de más de 6 meses de vida, en sistemas pastoriles intensivos de Uruguay. Se compilaron y analizaron 254 resultados de diferentes trabajos experimentales (nexp=68) realizados por distintas instituciones de investigación de Uruguay entre los años 1991 y 2020. Los estudios incluyen trabajos de alimentación con pasturas cultivadas como única fuente nutricional (nexp=61), así como trabajos de suplementación sobre ese mismo tipo de pasturas (nexp=49). Se realizaron regresiones lineales simples, cuadráticas, lineales múltiples y particiones recursivas de modo de sintetizar la información. Se observaron relaciones cuadráticas entre la asignación de forraje (AF) y la ganancia media diaria (GMD) para las diferentes categorías y estaciones del año. La inclusión de otros parámetros como peso vivo inicial y suplementación con concentrados energéticos o ensilajes permitió predecir la GMD de los animales bajo un amplio rango de alternativas de alimentación. Brevemente, niveles bajos de AF (?1,75 %PV) limitan el desempeño animal a condiciones de mantenimiento (0,2 kg/día). Para lograr niveles de GMD adecuados (0,6-0,7 kg/día), con AF bajas a moderadas (entre 1,75 a 3,5 %PV), se necesita que el valor nutritivo de la pastura alcance al menos el nivel 3 de calidad (>58 %DMO, >13 %PC, <50 %FDN, >21 %Leg y <19 %RS). Esas ganancias pueden superarse si la AF es >3,5 %PV (GMD en el rango de 0,7 a 1,0 kg/día). La mayor respuesta en GMD adicional (0,4-0,5 kg/día) por efecto de la suplementación con concentrados energéticos se logra con niveles de AF bajos (?2,25 %PV). La predicción de GMD adicional utilizando los parámetros de la regresión lineal múltiple permite evaluar la conveniencia de la suplementación.
650 $aBOVINOS DE CARNE
650 $aENGORDE
650 $aRECRIA
650 $aSUPLEMENTACION
653 $aCULTIVATED PASTURE
653 $aFATTENING
653 $aPASTURAS CULTIVADAS
653 $aREARING
653 $aREVIEW
653 $aSUPPLEMENTATION
700 1 $aLEMA, O.M.
700 1 $aLA MANNA, A.
700 1 $aPEREZ, E.
700 1 $aBANCHERO, G.
700 1 $aFERNANDEZ, E.
773 $tAgrociencia Uruguay, Vol. 25, no. 1, Apr. 2021, p. e107. DOI: https://doi.org/10.31285/AGRO.25.107.
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA La Estanzuela (LE) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
|
 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
|
Registro completo
|
|
Biblioteca (s) : |
INIA La Estanzuela. |
|
Fecha actual : |
30/10/2014 |
|
Actualizado : |
06/07/2022 |
|
Tipo de producción científica : |
Artículos Indexados |
|
Autor : |
VON ZITZEWITZ, J.; CUESTA-MARCOS, A.; CONDON, F.; CASTRO, A. J.; CHAO, S.; COREY, A.; FILICHKIN, T.; FISK, S.P.; GUTIERREZ, L.; HAGGARD, K.; KARSAI, I.; MUEHLBAUER, G. J.; SMITH, K.P.; VEISZ, O.; HAYES, P.M. |
|
Afiliación : |
JARISLAV RAMON VON ZITZEWITZ VON SALVIATI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FEDERICO CONDON PRIANO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
|
Título : |
The genetics of winterhardiness in barley: perspectives from genome-wide association mapping. |
|
Fecha de publicación : |
2011 |
|
Fuente / Imprenta : |
The Plant Genome, v. 4., n,1, p. 76-91, 2011. |
|
ISSN : |
1940-3372 |
|
DOI : |
10.3835/plantgenome2010.12.0030 |
|
Idioma : |
Inglés |
|
Contenido : |
Abstract: Winterhardiness is a complex trait that involves low temperature tolerance (LTT), vernalization sensitivity, and photoperiod sensitivity. Quantitative trait loci (QTL) for these traits were fi rst identifi ed using biparental mapping populations; candidate genes for all loci have since been identifi ed and characterized. In this research we used a set of 148 accessions consisting of advanced breeding lines from the Oregon barley (Hordeum vulgare L. subsp vulgare) breeding program and selected cultivars that were extensively phenotyped and genotyped with single nucleotide polymorphisms. Using these data for genome-wide association mapping we detected the same QTL and genes that have been systematically characterized using biparental populations over nearly two decades of intensive research. In this sample of germplasm, maximum LTT can be achieved with facultative growth habit, which can be predicted using a three-locus haplotype involving FR-H1, FR-H2, and VRN-H2. The FR-H1and FR-H2 LTT QTL explained 25% of the phenotypic variation, offering the prospect that additional gains from selection can be achieved once favorable alleles are fi xed at these loci. |
|
Thesagro : |
RECURSOS GENETICOS VEGETALES. |
|
Asunto categoría : |
-- |
|
Marc : |
LEADER 02094naa a2200325 a 4500
001 1051380
005 2022-07-06
008 2011 bl uuuu u00u1 u #d
022 $a1940-3372
024 7 $a10.3835/plantgenome2010.12.0030$2DOI
100 1 $aVON ZITZEWITZ, J.
245 $aThe genetics of winterhardiness in barley$bperspectives from genome-wide association mapping.$h[electronic resource]
260 $c2011
520 $aAbstract: Winterhardiness is a complex trait that involves low temperature tolerance (LTT), vernalization sensitivity, and photoperiod sensitivity. Quantitative trait loci (QTL) for these traits were fi rst identifi ed using biparental mapping populations; candidate genes for all loci have since been identifi ed and characterized. In this research we used a set of 148 accessions consisting of advanced breeding lines from the Oregon barley (Hordeum vulgare L. subsp vulgare) breeding program and selected cultivars that were extensively phenotyped and genotyped with single nucleotide polymorphisms. Using these data for genome-wide association mapping we detected the same QTL and genes that have been systematically characterized using biparental populations over nearly two decades of intensive research. In this sample of germplasm, maximum LTT can be achieved with facultative growth habit, which can be predicted using a three-locus haplotype involving FR-H1, FR-H2, and VRN-H2. The FR-H1and FR-H2 LTT QTL explained 25% of the phenotypic variation, offering the prospect that additional gains from selection can be achieved once favorable alleles are fi xed at these loci.
650 $aRECURSOS GENETICOS VEGETALES
700 1 $aCUESTA-MARCOS, A.
700 1 $aCONDON, F.
700 1 $aCASTRO, A. J.
700 1 $aCHAO, S.
700 1 $aCOREY, A.
700 1 $aFILICHKIN, T.
700 1 $aFISK, S.P.
700 1 $aGUTIERREZ, L.
700 1 $aHAGGARD, K.
700 1 $aKARSAI, I.
700 1 $aMUEHLBAUER, G. J.
700 1 $aSMITH, K.P.
700 1 $aVEISZ, O.
700 1 $aHAYES, P.M.
773 $tThe Plant Genome$gv. 4., n,1, p. 76-91, 2011.
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA La Estanzuela (LE) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
| Expresión de búsqueda válido. Check! |
|
|
