Fecha/hora: 03/06/2024 08:34:29

Biblioteca(s): 	INIA Tacuarembó.	
Fecha corriente: 	05/09/2014	
Fecha de la última actualización: 	13/05/2020	
Autoria: 	DE BARBIERI, I.; MONTOSSI, F.; VIÑOLES, C.; KENYON, P.R.	
Afiliación: 	LUIS IGNACIO DE BARBIERI ETCHEBERRY, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; FABIO MARCELO MONTOSSI PORCHILE, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; CAROLINA VIÑOLES GIL, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; PAUL RICHARD KENYON, Sheep Research Centre, Massey University, Palmerston North, New Zealand.	
Título: 	Effect of shearing ewes during mid-and late-pregnancy on lambs weight at birth and survival to weaning under grazing conditions in Uruguay.	
Año de publicación: 	2014	
Fuente/Imprenta: 	Small Ruminant Research, Volume 119, Issues 1–3, June 2014, Pages 28-32. DOI: http://dx.doi.org/10.1016/j.smallrumres.2014.03.004	
DOI: 	10.1016/j.smallrumres.2014.03.004	
Idioma: 	Inglés	
Notas: 	Article history:Received 7 September 2013; Received in revised form 11 March 2014; Accepted 14 March 2014;Available online 25 March 2014 . Acknowledgements: The authors thank the dedication, effort and compromise of the following farmers, and their families and staffinvolved in the present study: A. Dighiero (El AlgarroboStation), R. Ferro (El Mirador Station), A. Fraschini (El Gaucho Station), J. L. Galimberti (El Pescadero Station),O. Martigani (La Acacia Station), and J. Silva (El Algarrobo Station). In addition, we thank A. Dighiero (son), C.
Silveira, R. San Julián, S. Luzardo, P. Platero, M. Nolla y A.Mederos for their technical support and invaluable workeither at the field or lab. Lastly, we thank the sheep farmercooperative Central Lanera Uruguaya for its support during the development of this study, and in particular to R.Irigoyen given his key role as an institutional counterpartalong the three years of this project.	
Contenido: 	During a three-year period on commercial farms in Uruguay mature ewes and hoggets wereeither shorn in mid- or late-pregnancy to examine for effects on lamb live weight and sur-vival to weaning. The study included singleton- and twin-bearing ewes and single bearinghoggets and their lambs. Lambs born to mature ewes and hoggets shorn in mid pregnancywere heavier (P < 0.05) at birth than those born from ewes shorn in late pregnancy. Theweaning weight of lambs born from twin bearing ewes and single bearing hoggets did notdiffer between the shearing treatments (P > 0.05). Shearing treatment had an inconsistenteffect on the weaning weight of lambs born to singleton bearing ewes. Shearing treatmenthad no effect on lamb survival to weaning in all groups (P > 0.05). Combined these resultssuggest there is little scope to increase lamb performance to weaning by shearing ewesand hoggets at mid pregnancy compared to late pregnancy under Uruguayan commercialconditions.	
Palabras-Clave: 	LAMB BIRTH WEIGHT; LAMB SURVIVAL; LATE PREGNANCY; MID PREGNANCY.	
Thesagro: 	PRODUCCION ANIMAL.	
Categoría del tema: 	L01 Ganadería	
Registro original: 	INIA Tacuarembó (TBO)	
Ejemplares: 	TBO - (100005-1) - PXI - AP - PP - PP/SMALL RUMINANT RESEARCH/2014 -  -  - DIS