Fecha/hora: 12/06/2024 11:02:48

Biblioteca(s): 	INIA Las Brujas; INIA Tacuarembó.	
Fecha corriente: 	09/11/2017	
Fecha de la última actualización: 	25/11/2019	
Autoria: 	DE BARBIERI, I.; MONTOSSI, F.; VIÑOLES, C.; KENYON, P. R.	
Afiliación: 	LUIS IGNACIO DE BARBIERI ETCHEBERRY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FABIO MARCELO MONTOSSI PORCHILE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CAROLINA VIÑOLES GIL, Estación Experimental Bernardo Rosengurtt, Universidad de la República, Cerro Largo, Uruguay; PAUL R. KENYON, Sheep Research Centre, Massey University, Palmerston North, New Zealand.	
Título: 	Time of shearing the ewe not only affects lamb live weight and survival at birth and weaning, but also ewe wool production and quality.	
Complemento del título: 	Research article.	
Año de publicación: 	2017	
Fuente/Imprenta: 	New Zealand Journal of Agricultural Research, 2017, p. 1-10.	
ISSN: 	00288233	
DOI: 	10.1080/00288233.2017.1388825	
Idioma: 	Inglés	
Notas: 	Article history: Received 16 Jun 201; Accepted 03 Oct 2017; Published online: 24 Oct 2017.	
Contenido: 	ABSTRACT.
During a four-year period, mature ewes were either shorn in mid-pregnancy or post-partum to study impacts on lamb live weight and survival. Furthermore, placental measurements were collected post-partum from a subset of single-bearing ewes and yearly fleece weights and wool samples were collected from a subset of single- and twin-bearing ewes. Lambs born to ewes shorn in mid-pregnancy were heavier (p&#8201;<&#8201;.05) and displayed greater (p&#8201;<&#8201;.05) survival than those born from post-partum shorn ewes regardless of litter size. Shearing treatment had no effect (p&#8201;>&#8201;.05) on the weight of the placenta, and diameter or the weight of the cotyledons. However, the number of cotyledons was greater (p&#8201;<&#8201;.05) in mid-pregnancy than post-partum shorn ewes. Ewes shorn in mid-pregnancy produced lighter (p&#8201;<&#8201;.05) fleeces with greater (p&#8201;<&#8201;.05) yields. The fleece displayed shorter (p&#8201;<&#8201;.05) staple length, stronger staple strength (p&#8201;<&#8201;.05), and was less (p&#8201;<&#8201;.05) bright with poorer (p&#8201;<&#8201;.05) colour than those shorn in post-partum.
© 2017 The Royal Society of New Zealand	
Palabras-Clave: 	LAMB BIRTH WEIGHT; LAMB SURVIVAL; MID PREGNANCY; MID-PREGNANCY; PLACENTA; WOOL.	
Thesagro: 	CORDERO; LANA; OVEJA.	
Categoría del tema: 	--
L01 Ganadería	
Registro original: 	INIA Las Brujas (LB)	
Ejemplares: 	LB - (101490-1) - PXI - AP - DD - PP/NZJAR/2017 -  -  - DIS
TBO - (102138-1) - PXI - AP - DD - PP/NZJAR/2017 -  -  - DIS