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 | Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
13/11/2015 |
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Actualizado : |
09/10/2018 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
VIÑOLES, C.; GLOVER, K.M.M.; PAGANONI, B.L.; MILTON, J.T.B.; MARTIN, G.B. |
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Afiliación : |
CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Embryo losses in sheep during short-term nutritional supplementation. |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
Reproduction, Fertility and Development, 2012, v. 24, p. 1040-1047. |
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DOI : |
10.1071/RD11281 |
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Idioma : |
Inglés |
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Notas : |
History article: Received 4 November 2011; accepted 15 February 2012; published online 30 March 2012. |
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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. |
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Palabras claves : |
EMBRYO SURVIVAL; LUPIN SUPPLEMENT; MERINO EWES; METABOLIC HORMONES; PROGESTERONE. |
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Thesagro : |
HORMONAS; MERINO; OVINOS; PROGESTERONA. |
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Asunto categoría : |
L01 Ganadería |
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Marc : |
LEADER 02189naa a2200301 a 4500
001 1053870
005 2018-10-09
008 2012 bl uuuu u00u1 u #d
024 7 $a10.1071/RD11281$2DOI
100 1 $aVIÑOLES, C.
245 $aEmbryo losses in sheep during short-term nutritional supplementation.$h[electronic resource]
260 $c2012
500 $aHistory article: Received 4 November 2011; accepted 15 February 2012; published online 30 March 2012.
520 $aTo 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.
650 $aHORMONAS
650 $aMERINO
650 $aOVINOS
650 $aPROGESTERONA
653 $aEMBRYO SURVIVAL
653 $aLUPIN SUPPLEMENT
653 $aMERINO EWES
653 $aMETABOLIC HORMONES
653 $aPROGESTERONE
700 1 $aGLOVER, K.M.M.
700 1 $aPAGANONI, B.L.
700 1 $aMILTON, J.T.B.
700 1 $aMARTIN, G.B.
773 $tReproduction, Fertility and Development, 2012$gv. 24, p. 1040-1047.
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INIA Tacuarembó (TBO) |
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| Registros recuperados : 3 | |
| 2. |  | 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 Internacionales | Circulación / Nivel : B - 3 |
| Biblioteca(s): INIA Las Brujas. |
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| 3. | | 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 Internacionales | Circulación / Nivel : Internacional - 1 |
| Biblioteca(s): INIA Tacuarembó. |
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| Registros recuperados : 3 | |
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