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Registro completo
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Biblioteca (s) : |
INIA Las Brujas; INIA Tacuarembó. |
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Fecha : |
15/07/2015 |
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Actualizado : |
15/10/2019 |
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Tipo de producción científica : |
Revista INIA |
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Autor : |
INIA (INSTITUTO NACIONAL DE INVESTIGACIÓN AGROPECUARIA) |
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Título : |
Revista INIA Uruguay. (No.12, Setiembre 2007). |
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Fecha de publicación : |
2007 |
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Fuente / Imprenta : |
Montevideo (Uruguay): INIA, 2007. |
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Páginas : |
48 p. |
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Serie : |
(Revista INIA; 12) |
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ISSN : |
1510-9011 |
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Idioma : |
Español |
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Thesagro : |
ARROZ; BIOTECNOLOGIA; BOVINOS DE CARNE; CAMBIO CLIMÁTICO; CIENCIA; CITRUS; CLIMA; CLIMATOLOGIA; COMUNICACIÓN; CONTROL DE ENFERMEDADES; CULTIVOS DE GRANO; CULTIVOS DE SECANO; ENTOMOLOGIA; ESPECIES FORRAJERAS; EUCALYPTUS; EXPLOTACION AGRICOLA FAMILIAR; FITOPATOLOGÍA; FORESTALES; FORRAJES; FRUTALES; FRUTICULTURA; GANADO BOVINO; GRANOS; GRAS; HORTALIZAS; HORTICULTURA; INIA; INNOVACION; INVESTIGACIÓN; LECHERÍA; LEGUMINOSAS FORRAJERAS; MANEJO DEL CULTIVO; MEJORAMIENTO ANIMAL; METEOROLOGIA; MICROBIOLOGÍA; OVINOS; PASTURAS; PRODUCCIÓN ANIMAL; PRODUCCION DE LANA; PRODUCCION DE LECHE; PRODUCCION LECHERA; REVISTA INIA 2007; SEMILLAS; SOJA; SUELOS; SUINOS; SUSTENTABILIDAD AMBIENTAL; TECNOLOGÍA; TRANSFERENCIA DE TECNOLOGIA; VARIEDADES; VITICULTURA. |
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Asunto categoría : |
A50 Investigación agraria |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/4821/1/Revista-INIA-12.pdf
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Marc : |
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022 $a1510-9011
100 1 $aINIA (INSTITUTO NACIONAL DE INVESTIGACIÓN AGROPECUARIA)
245 $aRevista INIA Uruguay. (No.12, Setiembre 2007).
260 $aMontevideo (Uruguay): INIA$c2007
300 $a48 p.
490 $a(Revista INIA; 12)
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650 $aCONTROL DE ENFERMEDADES
650 $aCULTIVOS DE GRANO
650 $aCULTIVOS DE SECANO
650 $aENTOMOLOGIA
650 $aESPECIES FORRAJERAS
650 $aEUCALYPTUS
650 $aEXPLOTACION AGRICOLA FAMILIAR
650 $aFITOPATOLOGÍA
650 $aFORESTALES
650 $aFORRAJES
650 $aFRUTALES
650 $aFRUTICULTURA
650 $aGANADO BOVINO
650 $aGRANOS
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650 $aMEJORAMIENTO ANIMAL
650 $aMETEOROLOGIA
650 $aMICROBIOLOGÍA
650 $aOVINOS
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650 $aPRODUCCIÓN ANIMAL
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650 $aTECNOLOGÍA
650 $aTRANSFERENCIA DE TECNOLOGIA
650 $aVARIEDADES
650 $aVITICULTURA
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Registro original : |
INIA Las Brujas (LB) |
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 | Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
08/09/2014 |
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Actualizado : |
08/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
B - 3 |
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Autor : |
ROVIRA, P.J. |
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Afiliación : |
PABLO JUAN ROVIRA SANZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Effect of stocking rate and supplementation on performance of grazing lambs in a rice-pasture rotation systems. |
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Fecha de publicación : |
2013 |
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Fuente / Imprenta : |
Livestock Research for Rural Development, 2013, v.25,no.7 p. 118. |
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Descripción física : |
2-s2.0-84879747542 |
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ISSN : |
0121-3784 |
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Idioma : |
Inglés |
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Notas : |
Article history: received 12 March 2013; accepted 2 June 2013; published 1 July 2013. |
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Contenido : |
Abstract:
Lamb fattening has been integrated to rice-pasture systems of production in lowlands to keep the livestock sector competitive. The objective of the present study was to evaluate the effect of stocking rate (SR) and supplementation (S) on lamb performance grazing improved pastures (legumes + ryegrass) after rice harvesting. Sixty castrated Romney Marsh lambs 9 months old with an initial liveweight (LW) and body condition score (BCS, scale 1 to 5) mean ± SD of 35.1±2.8 kg and 2.8±0.27 points were divided randomly into balanced groups of six animals and assigned to five treatments with two replicates: 1) 10 lambs/ha, 2) 16 lambs/ha, 3) 16 lambs + S, 4) 24 lambs/ha, 5) 24 lambs/ha + S. The supplement used was high moisture sorghum grain (HMS) daily delivered at 1.1% of liveweight (as-fed basis).
Botanical composition at the beginning of the study was 53% rice stubble, 38% legumes and 9% ryegrass and other grasses; with an overall chemical composition of 13.4% crude protein and 52.2% acidic detergent fiber. In unsupplemented treatments, final liveweight (LW) decreased from 50.8 to 37.5 kg as SR increased from 10 to 24 lambs/ha as a result of a significant SR effect on average daily gain (ADG) (206, 151 and 40 g/a/day for 10, 16 and 24 lambs/ha; respectively). Maximum ADG was achieved at an estimated daily allowance of 1.2 kg DM/head/day. There was a quadratic effect of SR on LW gain per hectare which decreased from 158 to 62 kg/ha (16 and 24 lambs/ha, respectively). For supplemented treatments, HMS improved ADG when compared at 24 lambs/ha (40 and 122 g/a/day without and with supplement, respectively) achieving a feed efficiency of 4.6 kg of supplement per kg of added gain above the unsupplemented animals. In addition, supplementation improved average BCS from 3.4 to 4.1 at 24 lambs/ha but 8% of those animals still failed to meet minimum target BCS for slaughter (3.5) at the end of the experiment. Although poor-drained rice soils can be a predisposing factor for the occurrence of footrot, lambs did not show clinical symptoms of the disease probably due to the low mean minimum temperature (6.0ºC). Stocking rates between 10 and 16 lambs/ha are recommended for fattening lambs grazing improved pastures in poor-drained lowland rice soils. At higher stocking rates supplementation and/or extended grazing periods would be required to improve animal performance and to meet industry requirements for slaughter. MenosAbstract:
Lamb fattening has been integrated to rice-pasture systems of production in lowlands to keep the livestock sector competitive. The objective of the present study was to evaluate the effect of stocking rate (SR) and supplementation (S) on lamb performance grazing improved pastures (legumes + ryegrass) after rice harvesting. Sixty castrated Romney Marsh lambs 9 months old with an initial liveweight (LW) and body condition score (BCS, scale 1 to 5) mean ± SD of 35.1±2.8 kg and 2.8±0.27 points were divided randomly into balanced groups of six animals and assigned to five treatments with two replicates: 1) 10 lambs/ha, 2) 16 lambs/ha, 3) 16 lambs + S, 4) 24 lambs/ha, 5) 24 lambs/ha + S. The supplement used was high moisture sorghum grain (HMS) daily delivered at 1.1% of liveweight (as-fed basis).
Botanical composition at the beginning of the study was 53% rice stubble, 38% legumes and 9% ryegrass and other grasses; with an overall chemical composition of 13.4% crude protein and 52.2% acidic detergent fiber. In unsupplemented treatments, final liveweight (LW) decreased from 50.8 to 37.5 kg as SR increased from 10 to 24 lambs/ha as a result of a significant SR effect on average daily gain (ADG) (206, 151 and 40 g/a/day for 10, 16 and 24 lambs/ha; respectively). Maximum ADG was achieved at an estimated daily allowance of 1.2 kg DM/head/day. There was a quadratic effect of SR on LW gain per hectare which decreased from 158 to 62 kg/ha (16 and 24 lambs/ha, respectively).... Presentar Todo |
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Palabras claves : |
CROP-LIVESTOCK; FEED; SHEEP; SYSTEM OF PRODUCTION. |
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Thesagro : |
ALIMENTACIÓN; OVINOS; SISTEMAS DE PRODUCCIÓN; URUGUAY. |
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Asunto categoría : |
L02 Alimentación animal |
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Marc : |
LEADER 03269naa a2200253 a 4500
001 1050024
005 2019-10-08
008 2013 bl uuuu u00u1 u #d
022 $a0121-3784
100 1 $aROVIRA, P.J.
245 $aEffect of stocking rate and supplementation on performance of grazing lambs in a rice-pasture rotation systems.$h[electronic resource]
260 $c2013
300 $c2-s2.0-84879747542
500 $aArticle history: received 12 March 2013; accepted 2 June 2013; published 1 July 2013.
520 $aAbstract: Lamb fattening has been integrated to rice-pasture systems of production in lowlands to keep the livestock sector competitive. The objective of the present study was to evaluate the effect of stocking rate (SR) and supplementation (S) on lamb performance grazing improved pastures (legumes + ryegrass) after rice harvesting. Sixty castrated Romney Marsh lambs 9 months old with an initial liveweight (LW) and body condition score (BCS, scale 1 to 5) mean ± SD of 35.1±2.8 kg and 2.8±0.27 points were divided randomly into balanced groups of six animals and assigned to five treatments with two replicates: 1) 10 lambs/ha, 2) 16 lambs/ha, 3) 16 lambs + S, 4) 24 lambs/ha, 5) 24 lambs/ha + S. The supplement used was high moisture sorghum grain (HMS) daily delivered at 1.1% of liveweight (as-fed basis). Botanical composition at the beginning of the study was 53% rice stubble, 38% legumes and 9% ryegrass and other grasses; with an overall chemical composition of 13.4% crude protein and 52.2% acidic detergent fiber. In unsupplemented treatments, final liveweight (LW) decreased from 50.8 to 37.5 kg as SR increased from 10 to 24 lambs/ha as a result of a significant SR effect on average daily gain (ADG) (206, 151 and 40 g/a/day for 10, 16 and 24 lambs/ha; respectively). Maximum ADG was achieved at an estimated daily allowance of 1.2 kg DM/head/day. There was a quadratic effect of SR on LW gain per hectare which decreased from 158 to 62 kg/ha (16 and 24 lambs/ha, respectively). For supplemented treatments, HMS improved ADG when compared at 24 lambs/ha (40 and 122 g/a/day without and with supplement, respectively) achieving a feed efficiency of 4.6 kg of supplement per kg of added gain above the unsupplemented animals. In addition, supplementation improved average BCS from 3.4 to 4.1 at 24 lambs/ha but 8% of those animals still failed to meet minimum target BCS for slaughter (3.5) at the end of the experiment. Although poor-drained rice soils can be a predisposing factor for the occurrence of footrot, lambs did not show clinical symptoms of the disease probably due to the low mean minimum temperature (6.0ºC). Stocking rates between 10 and 16 lambs/ha are recommended for fattening lambs grazing improved pastures in poor-drained lowland rice soils. At higher stocking rates supplementation and/or extended grazing periods would be required to improve animal performance and to meet industry requirements for slaughter.
650 $aALIMENTACIÓN
650 $aOVINOS
650 $aSISTEMAS DE PRODUCCIÓN
650 $aURUGUAY
653 $aCROP-LIVESTOCK
653 $aFEED
653 $aSHEEP
653 $aSYSTEM OF PRODUCTION
773 $tLivestock Research for Rural Development, 2013$gv.25,no.7 p. 118.
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