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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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INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
09/05/2023 |
Actualizado : |
10/05/2023 |
Tipo de producción científica : |
Capítulo en Libro Técnico-Científico |
Autor : |
FARIÑA, S. |
Afiliación : |
SANTIAGO FARIÑA, INIA (Instituto Nacional de Investigación Agropecuaria). |
Título : |
La gestión del pastoreo como herramienta para las trayectorias agroecológicas en sistemas lecheros. (Capítulo 19). |
Complemento del título : |
Tercera sección. Tecnologías con enfoque en la productividad y la calidad. Editores: Roberto Zoppolo y Gabriel Ciappesoni. |
Fecha de publicación : |
2023 |
Fuente / Imprenta : |
In: Georgina Paula García-Inza; José María Paruelo; Roberto Zoppolo. (eds). Aportes científicos y tecnológicos del Instituto Nacional de Investigación Agropecuaria (INIA) del Uruguay a las trayectorias agroecológicas. Ciudad Autónoma de Buenos Aires : Fundación CICCUS, 2023. p.395-410. |
Páginas : |
p.395-410. |
ISBN : |
978-987-693-926-3 |
Idioma : |
Español |
Contenido : |
En los sistemas de producción de leche de Uruguay, el aprovechamiento de forraje en las pasturas es bajo. ---- 1. Introducción. -- 2. Línea de base: ¿cómo se hacen las cosas en el sector lechero?. -- 3. Manejo del pastoreo sistematizado. -- 3.1. Fundamentación. -- 3.2. Antecedentes. -- 3.3. El manejo por stock de pasto. -- 3.4. Sistema de manejo de pastoreo "3 R". -- 4. Aportes de la tecnología generada a las trayectorias agroecológicas de sistemas lecheros. -- |
Thesagro : |
ALIMENTACION ANIMAL; MATERIA SECA; PASTOREO; PASTURAS; PRODUCCION DE LECHE. |
Asunto categoría : |
L02 Alimentación animal |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/17119/1/Farina-S.-Capitulo-19.pdf
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Marc : |
LEADER 01342naa a2200205 a 4500 001 1064105 005 2023-05-10 008 2023 bl uuuu u00u1 u #d 020 $a978-987-693-926-3 100 1 $aFARIÑA, S. 245 $aLa gestión del pastoreo como herramienta para las trayectorias agroecológicas en sistemas lecheros. (Capítulo 19).$h[electronic resource] 260 $c2023 300 $ap.395-410. 520 $aEn los sistemas de producción de leche de Uruguay, el aprovechamiento de forraje en las pasturas es bajo. ---- 1. Introducción. -- 2. Línea de base: ¿cómo se hacen las cosas en el sector lechero?. -- 3. Manejo del pastoreo sistematizado. -- 3.1. Fundamentación. -- 3.2. Antecedentes. -- 3.3. El manejo por stock de pasto. -- 3.4. Sistema de manejo de pastoreo "3 R". -- 4. Aportes de la tecnología generada a las trayectorias agroecológicas de sistemas lecheros. -- 650 $aALIMENTACION ANIMAL 650 $aMATERIA SECA 650 $aPASTOREO 650 $aPASTURAS 650 $aPRODUCCION DE LECHE 773 $tIn: Georgina Paula García-Inza; José María Paruelo; Roberto Zoppolo. (eds). Aportes científicos y tecnológicos del Instituto Nacional de Investigación Agropecuaria (INIA) del Uruguay a las trayectorias agroecológicas. Ciudad Autónoma de Buenos Aires : Fundación CICCUS, 2023. p.395-410.
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