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Biblioteca (s) :  INIA Tacuarembó.
Fecha :  13/11/2015
Actualizado :  09/10/2018
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Autor :  VIÑOLES, C.; GLOVER, K.M.M.; PAGANONI, B.L.; MILTON, J.T.B.; MARTIN, G.B.
Afiliación :  CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título :  Embryo losses in sheep during short-term nutritional supplementation.
Fecha de publicación :  2012
Fuente / Imprenta :  Reproduction, Fertility and Development, 2012, v. 24, p. 1040-1047.
DOI :  10.1071/RD11281
Idioma :  Inglés
Notas :  History article: Received 4 November 2011; accepted 15 February 2012; published online 30 March 2012.
Contenido :  To test whether a nutritional supplement fed from 6 days before until 15 days after insemination reduces progesterone concentrations and increases embryo losses, Merino ewes were artificially inseminated (Day 0). Control ewes (n¼116) were not supplemented whereas Lupin6 ewes (n¼112) were supplemented with 500 g lupin grain daily for 6 days before insemination, and Lupin6þ15 ewes (n¼122) from 6 days before until 15 days after insemination. There were no major differences between treatment groups in progesterone concentrations over the first 17 days of pregnancy. Embryo losses over Days 10?17 were lower in the Lupin6þ15 than in the Control and Lupin6 groups, but the opposite occurred from Day 17?30. The concentrations of insulin and IGF-I were higher in Lupin6þ15 ewes on Days 5, 12 and 17, compared with Lupin6 and Control ewes, while leptin concentrations decreased by Day 17 in the Lupin6þ15 group. We conclude that feeding ewes for 15 days after mating improved embryo survival, which was associated with an increase in the concentrations of metabolic hormones and lower progesterone concentrations. However, the decrease in leptin concentrations promoted by the interruption of supplementation seems be linked to increased embryo mortality up to Day 30.
Palabras claves :  EMBRYO SURVIVAL; LUPIN SUPPLEMENT; MERINO EWES; METABOLIC HORMONES; PROGESTERONE.
Thesagro :  HORMONAS; MERINO; OVINOS; PROGESTERONA.
Asunto categoría :  L01 Ganadería
Marc :  Presentar Marc Completo
Registro original :  INIA Tacuarembó (TBO)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
TBO100983 - 1PXIAP - DDPP/Rep. Fertility and Dev./2012/24

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1.Imagen marcada / sin marcar VIÑOLES, C.; GLOVER, K.M.M.; PAGANONI, B.L.; MILTON, J.T.B.; MARTIN, G.B. Embryo losses in sheep during short-term nutritional supplementation. Reproduction, Fertility and Development, 2012, v. 24, p. 1040-1047. History article: Received 4 November 2011; accepted 15 February 2012; published online 30 March 2012.
Tipo: Artículos en Revistas Indexadas InternacionalesCirculación / Nivel : Internacional - 1
Biblioteca(s): INIA Tacuarembó.
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2.Imagen marcada / sin marcar MULVANEY, F.J.; MORRIS, S.T.; KENYON, P.R.; MOREL, P.C.H.; WEST, D.M.; VIÑOLES, C.; GLOVER, K.M.M. Comparison between the reproductive performance of ewe hoggets and mature ewes following a progesterone-based oestrus synchronization protocol. New Zealand Journal of Agricultural Research, 2013, v.56, no.4, p. 288-296. 0028-8233 Article history: Received 27 May 2013 // Accepted 5 September 2013.
Tipo: Artículos en Revistas Indexadas InternacionalesCirculación / Nivel : B - 3
Biblioteca(s): INIA Las Brujas.
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3.Imagen marcada / sin marcar VIÑOLES, C.; PAGANONI, B.L.; MCNATTY, K.P.; HEATH, D.A.; THOMPSON, A.N.; GLOVER, K.M.M.; MILTON, J.T.B.; MARTIN, G.B. Follicle development, endocrine profiles and ovulation rate in adult Merino ewes-effects of early nutrition (pre-and post-natal) and supplementation with lupin grain. Reproduction, 2014, v. 147, no. 1, p. 101-110. History article: Received 14 March 2013; First decision 8 April 2013; Revised manuscript received 17 October 2013; Accepted 23 October 2013.
Tipo: Artículos en Revistas Indexadas InternacionalesCirculación / Nivel : Internacional - 1
Biblioteca(s): INIA Tacuarembó.
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