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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Treinta y Tres. |
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Fecha : |
12/09/2014 |
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Actualizado : |
17/09/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
SPHOR, L.; BANCHERO, G.; CORREA, G.; OSORIO, M.T.M.; QUINTANS, G. |
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Afiliación : |
BANCHERO HUNZIKER, GEORGGET, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; QUINTANS ILARIA, GRACIELA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Early prepartum shearing increases milk production of wool sheep and the weight of the lambs at birth and weaning. |
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Fecha de publicación : |
2011 |
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Fuente / Imprenta : |
Small Ruminant Research, v. 99, p. 44-47, 2011. |
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ISSN : |
0921-4488 |
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DOI : |
10.1016/j.smallrumres.2011.03.007. |
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Idioma : |
Inglés |
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Notas : |
Article history: received 6 November 2010; received in revised form 18 February 2011; accepted 3 March 2011; available online 13 April 2011. |
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Contenido : |
Abstract:
The use of mid prepartum shearing has been described as a possible tool to increase the weight of the lambs at birth and at weaning. The effect of prepartum shearing (53 days of gestation) on production and chemical composition of milk, weight of the lambs at birth and weaning and growth rate were evaluated in this trial. Twenty Polwarth ewes were inseminated with rams of the same breed in May (autumn), 2009. All ewes bore singletons and were maintained together under cultivated grazing conditions, during the experimental period. The ewes were allocated to two treatments groups, based on expected day of parturition, body weight and BCS of the dams. Ten ewes were shorn at 53 days of gestation (S53) and 10 ewes were kept unshorn during gestation (US). Milking of the ewes was recorded 7 days after parturition, and this was repeated weekly for 15 weeks. Milk production of the S53 ewes was 22.2% higher (P < 0.05), when compared to US control ewes –
with no change in the milk composition. At lambing, the lambs born to the S53 ewes were 1.41 kg (P < 0.05), and at weaning 4.5 kg heavier (P < 0.05), than lambs born to US ewes. In conclusion, it can be said that the higher weaning weight of the S53 lambs was the result of both a higher birth weight and an increased growth rate up to weaning in part, due to an improved milk production of the ewes. |
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Palabras claves : |
BIRTH WEIGHT; CHEMICAL COMPOSITION; COMPOSICIÓN DE LA LECHE; ESQUILA PREPARTO TEMPRANA; MILK PRODUCTION; PESO AL DESTETE; PESO AL NACER; SECRECIÓN DE LECHE; SEGUIMIENTO DE LA PREÑEZ EN OVEJA; SEGUIMIENTO POSPARTO EN OVEJA; SHEARING; SUPERVIVENCIA DE CORDEROS. |
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Thesagro : |
COMPOSICION QUIMICA; CORDEROS; OVEJAS; OVINOS; PRODUCCION DE LECHE; PRODUCCIÓN OVINA. |
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Asunto categoría : |
L53 Fisiología Animal - Reproducción |
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Marc : |
LEADER 02727naa a2200421 a 4500
001 1050186
005 2019-09-17
008 2011 bl uuuu u00u1 u #d
022 $a0921-4488
024 7 $a10.1016/j.smallrumres.2011.03.007.$2DOI
100 1 $aSPHOR, L.
245 $aEarly prepartum shearing increases milk production of wool sheep and the weight of the lambs at birth and weaning.
260 $c2011
500 $aArticle history: received 6 November 2010; received in revised form 18 February 2011; accepted 3 March 2011; available online 13 April 2011.
520 $aAbstract: The use of mid prepartum shearing has been described as a possible tool to increase the weight of the lambs at birth and at weaning. The effect of prepartum shearing (53 days of gestation) on production and chemical composition of milk, weight of the lambs at birth and weaning and growth rate were evaluated in this trial. Twenty Polwarth ewes were inseminated with rams of the same breed in May (autumn), 2009. All ewes bore singletons and were maintained together under cultivated grazing conditions, during the experimental period. The ewes were allocated to two treatments groups, based on expected day of parturition, body weight and BCS of the dams. Ten ewes were shorn at 53 days of gestation (S53) and 10 ewes were kept unshorn during gestation (US). Milking of the ewes was recorded 7 days after parturition, and this was repeated weekly for 15 weeks. Milk production of the S53 ewes was 22.2% higher (P < 0.05), when compared to US control ewes – with no change in the milk composition. At lambing, the lambs born to the S53 ewes were 1.41 kg (P < 0.05), and at weaning 4.5 kg heavier (P < 0.05), than lambs born to US ewes. In conclusion, it can be said that the higher weaning weight of the S53 lambs was the result of both a higher birth weight and an increased growth rate up to weaning in part, due to an improved milk production of the ewes.
650 $aCOMPOSICION QUIMICA
650 $aCORDEROS
650 $aOVEJAS
650 $aOVINOS
650 $aPRODUCCION DE LECHE
650 $aPRODUCCIÓN OVINA
653 $aBIRTH WEIGHT
653 $aCHEMICAL COMPOSITION
653 $aCOMPOSICIÓN DE LA LECHE
653 $aESQUILA PREPARTO TEMPRANA
653 $aMILK PRODUCTION
653 $aPESO AL DESTETE
653 $aPESO AL NACER
653 $aSECRECIÓN DE LECHE
653 $aSEGUIMIENTO DE LA PREÑEZ EN OVEJA
653 $aSEGUIMIENTO POSPARTO EN OVEJA
653 $aSHEARING
653 $aSUPERVIVENCIA DE CORDEROS
700 1 $aBANCHERO, G.
700 1 $aCORREA, G.
700 1 $aOSORIO, M.T.M.
700 1 $aQUINTANS, G.
773 $tSmall Ruminant Research$gv. 99, p. 44-47, 2011.
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