| |
|
|
 | Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
|
Registro completo
|
|
Biblioteca (s) : |
INIA Treinta y Tres. |
|
Fecha : |
08/09/2014 |
|
Actualizado : |
08/10/2019 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
Autor : |
ROVIRA, P.J. |
|
Afiliación : |
PABLO JUAN ROVIRA SANZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
|
Título : |
Effect of stocking rate and supplementation on performance of grazing lambs in a rice-pasture rotation systems. |
|
Fecha de publicación : |
2013 |
|
Fuente / Imprenta : |
Livestock Research for Rural Development, 2013, v.25,no.7 p. 118. |
|
Descripción física : |
2-s2.0-84879747542 |
|
ISSN : |
0121-3784 |
|
Idioma : |
Inglés |
|
Notas : |
Article history: received 12 March 2013; accepted 2 June 2013; published 1 July 2013. |
|
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 |
|
Palabras claves : |
CROP-LIVESTOCK; FEED; SHEEP; SYSTEM OF PRODUCTION. |
|
Thesagro : |
ALIMENTACIÓN; OVINOS; SISTEMAS DE PRODUCCIÓN; URUGUAY. |
|
Asunto categoría : |
L02 Alimentación animal |
|
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.
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Treinta y Tres (TT) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
|
|
Registro completo
|
|
Biblioteca (s) : |
INIA Las Brujas. |
|
Fecha actual : |
20/01/2022 |
|
Actualizado : |
20/01/2022 |
|
Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
|
Autor : |
CLARIGET, J.M.; BANCHERO, G.; KENNY, D.; KEOGH, K.; KELLY, A. |
|
Afiliación : |
JUAN MANUEL CLARIGET BRIZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; D. KENNY, Teagasc Animal and Grassland Research and Innovation Centre, Grange, Dunsany, Co. Meath, Ireland; K. KEOGH, Teagasc Animal and Grassland Research and Innovation Centre, Grange, Dunsany, Co. Meath, Ireland; A. KELLY, School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland. |
|
Título : |
Uruguayan beef calves compensatory growth: Meta-analyses. |
|
Fecha de publicación : |
2021 |
|
Fuente / Imprenta : |
In: AUPA, Proceedings del VII Congreso Uruguayo de Producción Animal. Sección Producción Animal Sostenible (Sustainable Animal Production Section), 14 y 15 diciembre 2021. Archivos Latinoamericanos de Producción Animal, 29(Supl.1), p.161-162. |
|
Serie : |
(Archivos Latinoamericanos de Producción Animal, Vol.29, Supl.1) |
|
ISSN : |
1022-1301; online 2075-8359 |
|
Idioma : |
Inglés |
|
Notas : |
Corresponding author: J.M. Clariget, Instituto Nacional de Investigación Agropecuaria (INIA), Ruta 50, km 11, Colonia, Uruguay, mailto:jclariget@inia.org.uy |
|
Contenido : |
The objective of this study was review national published information and conduct a meta-analysis evaluating: a) compensatory growth in Uruguayan beef calves, and b) compensatory growth under different re-alimentation diets (natural grass vs. sown pasture). |
|
Palabras claves : |
BEEF CATTLE; Compensatory index; Review. |
|
Asunto categoría : |
L01 Ganadería |
|
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16227/1/2952-Article-Text-10070-4-10-20211213-09.pdf
|
|
Marc : |
LEADER 01286nam a2200229 a 4500
001 1062688
005 2022-01-20
008 2021 bl uuuu u01u1 u #d
022 $a1022-1301; online 2075-8359
100 1 $aCLARIGET, J.M.
245 $aUruguayan beef calves compensatory growth$bMeta-analyses.$h[electronic resource]
260 $aIn: AUPA, Proceedings del VII Congreso Uruguayo de Producción Animal. Sección Producción Animal Sostenible (Sustainable Animal Production Section), 14 y 15 diciembre 2021. Archivos Latinoamericanos de Producción Animal, 29(Supl.1), p.161-162.$c2021
490 $a(Archivos Latinoamericanos de Producción Animal, Vol.29, Supl.1)
500 $aCorresponding author: J.M. Clariget, Instituto Nacional de Investigación Agropecuaria (INIA), Ruta 50, km 11, Colonia, Uruguay, mailto:jclariget@inia.org.uy
520 $aThe objective of this study was review national published information and conduct a meta-analysis evaluating: a) compensatory growth in Uruguayan beef calves, and b) compensatory growth under different re-alimentation diets (natural grass vs. sown pasture).
653 $aBEEF CATTLE
653 $aCompensatory index
653 $aReview
700 1 $aBANCHERO, G.
700 1 $aKENNY, D.
700 1 $aKEOGH, K.
700 1 $aKELLY, A.
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Las Brujas (LB) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
| Expresión de búsqueda válido. Check! |
|
|
