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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha : |
15/09/2014 |
Actualizado : |
09/10/2018 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
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. |
Afiliación : |
CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Follicle development, endocrine profiles and ovulation rate in adult Merino ewes-effects of early nutrition (pre-and post-natal) and supplementation with lupin grain. |
Fecha de publicación : |
2014 |
Fuente / Imprenta : |
Reproduction, 2014, v. 147, no. 1, p. 101-110. |
DOI : |
10.1530/REP-13-0104 |
Idioma : |
Inglés |
Notas : |
History article: Received 14 March 2013; First decision 8 April 2013; Revised manuscript received 17 October 2013; Accepted 23 October 2013. |
Contenido : |
In adult ewes, we tested whether ovarian function, including the response to short-term supplementation, was affected by the nutrition of their mothers during the pre-/postnatal period. A 2x2 factorial was used with nutrition in early life (low or high) and a 6- day supplement (with or without) as factors. All ewes received 3 prostaglandin injections 7 days apart, and the supplement (lupin grain) was fed for 6 days from 2 days after the second until the third prostaglandin injection. We measured reproductive and metabolic hormones, studied follicle dynamics (ultrasonography), and evaluated granulosa cell numbers, aromatase activity and oestradiol concentrations in follicular fluid in healthy follicles at Days 3 and 7 of supplementation. Ovulation rate was increased by 25% by exposure to high pre-/post-natal nutrition (1.5 versus 1.2; P < 0.05), in association with a small decrease in FSH concentrations (P = 0.06) and a small increase in insulin concentrations (P = 0.07). The number of healthy astral follicles was not affected. Acute supplementation increased the number of granulose cells (3.7 ??0.2 vs 3.0 ??0.2 million; P < 0.05) in the largest follicle, and the circulating concentrations of oestradiol (4.6 ??0.3 vs 3.9 ??0.3 pmol/L; P < 0.05) and glucose (3.4 ??0.03 vs 3.3 ??0.03 mmol/L; P < 0.01). Both early life nutrition and acute supplementation appear to affect ovulation rate through changes in glucose-insulin homeostasis that alter follicular responsiveness to FSH and therefore oestradiol-FSH balance. MenosIn adult ewes, we tested whether ovarian function, including the response to short-term supplementation, was affected by the nutrition of their mothers during the pre-/postnatal period. A 2x2 factorial was used with nutrition in early life (low or high) and a 6- day supplement (with or without) as factors. All ewes received 3 prostaglandin injections 7 days apart, and the supplement (lupin grain) was fed for 6 days from 2 days after the second until the third prostaglandin injection. We measured reproductive and metabolic hormones, studied follicle dynamics (ultrasonography), and evaluated granulosa cell numbers, aromatase activity and oestradiol concentrations in follicular fluid in healthy follicles at Days 3 and 7 of supplementation. Ovulation rate was increased by 25% by exposure to high pre-/post-natal nutrition (1.5 versus 1.2; P < 0.05), in association with a small decrease in FSH concentrations (P = 0.06) and a small increase in insulin concentrations (P = 0.07). The number of healthy astral follicles was not affected. Acute supplementation increased the number of granulose cells (3.7 ??0.2 vs 3.0 ??0.2 million; P < 0.05) in the largest follicle, and the circulating concentrations of oestradiol (4.6 ??0.3 vs 3.9 ??0.3 pmol/L; P < 0.05) and glucose (3.4 ??0.03 vs 3.3 ??0.03 mmol/L; P < 0.01). Both early life nutrition and acute supplementation appear to affect ovulation rate through changes in glucose-insulin homeostasis that alter follicular responsiveness to FSH a... Presentar Todo |
Thesagro : |
OVINOS. |
Asunto categoría : |
A50 Investigación agraria |
Marc : |
LEADER 02402naa a2200241 a 4500 001 1050229 005 2018-10-09 008 2014 bl uuuu u00u1 u #d 024 7 $a10.1530/REP-13-0104$2DOI 100 1 $aVIÑOLES, C. 245 $aFollicle development, endocrine profiles and ovulation rate in adult Merino ewes-effects of early nutrition (pre-and post-natal) and supplementation with lupin grain. 260 $c2014 500 $aHistory article: Received 14 March 2013; First decision 8 April 2013; Revised manuscript received 17 October 2013; Accepted 23 October 2013. 520 $aIn adult ewes, we tested whether ovarian function, including the response to short-term supplementation, was affected by the nutrition of their mothers during the pre-/postnatal period. A 2x2 factorial was used with nutrition in early life (low or high) and a 6- day supplement (with or without) as factors. All ewes received 3 prostaglandin injections 7 days apart, and the supplement (lupin grain) was fed for 6 days from 2 days after the second until the third prostaglandin injection. We measured reproductive and metabolic hormones, studied follicle dynamics (ultrasonography), and evaluated granulosa cell numbers, aromatase activity and oestradiol concentrations in follicular fluid in healthy follicles at Days 3 and 7 of supplementation. Ovulation rate was increased by 25% by exposure to high pre-/post-natal nutrition (1.5 versus 1.2; P < 0.05), in association with a small decrease in FSH concentrations (P = 0.06) and a small increase in insulin concentrations (P = 0.07). The number of healthy astral follicles was not affected. Acute supplementation increased the number of granulose cells (3.7 ??0.2 vs 3.0 ??0.2 million; P < 0.05) in the largest follicle, and the circulating concentrations of oestradiol (4.6 ??0.3 vs 3.9 ??0.3 pmol/L; P < 0.05) and glucose (3.4 ??0.03 vs 3.3 ??0.03 mmol/L; P < 0.01). Both early life nutrition and acute supplementation appear to affect ovulation rate through changes in glucose-insulin homeostasis that alter follicular responsiveness to FSH and therefore oestradiol-FSH balance. 650 $aOVINOS 700 1 $aPAGANONI, B.L. 700 1 $aMCNATTY, K.P. 700 1 $aHEATH, D.A. 700 1 $aTHOMPSON, A.N. 700 1 $aGLOVER, K.M.M. 700 1 $aMILTON, J.T.B. 700 1 $aMARTIN, G.B. 773 $tReproduction, 2014$gv. 147, no. 1, p. 101-110.
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Registros recuperados : 10 | |
3. | | BANCHERO, G.; QUINTANS, G.; MARTIN, G.B.; LINDSAY, D.R.; MILTON, J.T.B. Nutrition and colostrum production in sheep. 1. Metabolic and hormonal responses to a high-energy supplement in the final stages of pregnancy. Reproduction, Fertility and Development, 2004, v. 16, no. 6, p. 633-645. Article history: Submitted: 7 October 2003 // Accepted: 3 June 2004 // Published: 16 August 2004.
DOI: https://doi.org/10.1071/RD03091Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : A - 2 |
Biblioteca(s): INIA Treinta y Tres. |
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4. | | BANCHERO, G.; QUINTANS, G.; MARTIN, G.B.; MILTON, J.T.B.; LINDSAY, D.R. Nutrition and colostrum production in sheep. 2. Metabolic and hormonal responses to different energy sources in the final stages of pregnancy. Reproduction, Fertility and Development, 2004, v. 16, no. 6, p. 645-653. Article history: Submitted: 7 October 2003//Accepted: 3 June 2004//Published: 16 August 2004.
DOI: https://doi.org/10.1071/RD03092Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : A - 2 |
Biblioteca(s): INIA Treinta y Tres. |
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7. | | BANCHERO, G.; STEFANOVA, K.; LINDSAY, D.R.; QUINTANS, G.; BALDI, F.; MILTON, J.T.B.; MARTIN, G.B. Ovulation and ovulation rate in ewes under grazing conditions: factors affecting the response to short-term supplementation. Animal, Volume 15, Issue 2, February 2021, Article number 100100. OPEN ACCESS. Doi: https://doi.org/10.1016/j.animal.2020.100100 Article history:Received 11 July 2020/Received in revised form 22 September 2020/Accepted 24 September 2020/
Available online 14 dic 2020. Corresponding author : E-mail address: gbanchero@inia.org.uy (G.E. Banchero).Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA La Estanzuela. |
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9. | | 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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10. | | BANCHERO, G.; CLARIGET, J.M.; LA MANNA, A.; WATT, L.J.; MILTON, J.T.B.; FERNANDEZ, E.; ZARZA, R.; BALDI, F.; THOMAS, D.T. Growth of young cattle grazing high-moisture winter forages in a temperate environment was not affected by access to drinking water. Animal Production Science, 2022, Volume 62, Issue 4, p.392-400. Doi: https://doi.org/10.1071/AN21288 Article history: Received: 2 June 2021/Accepted: 10 November 2021/Published: 9 December 2021 -- Correspondence author: Banchero, G.; Instituto Nacional de Investigación Agropecuaria. INIA la Estanzuela, Ruta 50 km 12, Colonia, Uruguay;...Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA La Estanzuela. |
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Registros recuperados : 10 | |
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