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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
15/09/2014 |
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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.; PAGANONI, B.L.; MCNATTY, K.P.; HEATH, D.A.; THOMPSON, A.N.; GLOVER, K.M.M.; 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 : |
Follicle development, endocrine profiles and ovulation rate in adult Merino ewes-effects of early nutrition (pre-and post-natal) and supplementation with lupin grain. |
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Fecha de publicación : |
2014 |
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Fuente / Imprenta : |
Reproduction, 2014, v. 147, no. 1, p. 101-110. |
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DOI : |
10.1530/REP-13-0104 |
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Idioma : |
Inglés |
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Notas : |
History article: Received 14 March 2013; First decision 8 April 2013; Revised manuscript received 17 October 2013; Accepted 23 October 2013. |
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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 |
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Thesagro : |
OVINOS. |
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Asunto categoría : |
A50 Investigación agraria |
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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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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
28/11/2018 |
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Tipo de producción científica : |
Tesis |
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Autor : |
LEONI, C. |
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Afiliación : |
CAROLINA LEONI VELAZCO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Crop rotation design in view of soilborne pathogen dynamics: a methodological approach illustrated with Sclerotium rolfsii and Fusarium oxysporum f.sp.cepae. [PhD Thesis, Wageningen University.] |
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Fecha de publicación : |
2013 |
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Fuente / Imprenta : |
Wageningen (NL): Wageningen University, 2013. |
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Páginas : |
173 p. |
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ISBN : |
978-94-6173-802-8 |
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Idioma : |
Inglés |
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Notas : |
This research was conducted under the auspices of the C. T. de Wit Graduate School of Production Ecology and Resource Conservation.
Tutors: Bruggen, Prof. dr. A.H.C. van ; Braak, Prof. dr. C.J.F. ter ; Rossing, Dr. W.A.H. |
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Contenido : |
This thesis provides a methodological approach to the design of crop rotations and their effects on soil borne pathogen dynamics, based on two ecologically distinct and relevant pathogens in vegetable production systems: Sclerotium rolfsii and Fusarium oxysporum f.sp. cepae. The results demonstrate that a combination of data from controlled experiments, novel analytical tools (Bayesian analysis, modelling and simulation) and on-farm observations can lead to the identification of optimal crop rotations without extensive field experiments that require a lot of time, space and economic resources. |
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Palabras claves : |
ATHELIA ROLFSII; CROPS; FUSARIUM OXYSPORUM F; PLANT PATHOGENIC FUNGI; ROTATIONS; SOIL FUNGI; SOILBORNE PATHOGENS. |
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Thesagro : |
ENFERMEDADES DE LAS PLANTAS; MANEJO DE SUELOS; ORIGEN DE SUELO; PATOLOGIAS; ROTACION DE CULTIVOS. |
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Asunto categoría : |
-- |
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URL : |
http://edepot.wur.nl/284984
http://www.ainfo.inia.uy/digital/bitstream/item/12034/1/Leoni-C.-2013.-Tesis-doctorado.pdf
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Marc : |
LEADER 01725nam a2200289 a 4500
001 1003664
005 2018-11-28
008 2013 bl uuuu u00u1 u #d
020 $a978-94-6173-802-8
100 1 $aLEONI, C.
245 $aCrop rotation design in view of soilborne pathogen dynamics$ba methodological approach illustrated with Sclerotium rolfsii and Fusarium oxysporum f.sp.cepae. [PhD Thesis, Wageningen University.]
260 $aWageningen (NL): Wageningen University$c2013
300 $a173 p.
500 $aThis research was conducted under the auspices of the C. T. de Wit Graduate School of Production Ecology and Resource Conservation. Tutors: Bruggen, Prof. dr. A.H.C. van ; Braak, Prof. dr. C.J.F. ter ; Rossing, Dr. W.A.H.
520 $aThis thesis provides a methodological approach to the design of crop rotations and their effects on soil borne pathogen dynamics, based on two ecologically distinct and relevant pathogens in vegetable production systems: Sclerotium rolfsii and Fusarium oxysporum f.sp. cepae. The results demonstrate that a combination of data from controlled experiments, novel analytical tools (Bayesian analysis, modelling and simulation) and on-farm observations can lead to the identification of optimal crop rotations without extensive field experiments that require a lot of time, space and economic resources.
650 $aENFERMEDADES DE LAS PLANTAS
650 $aMANEJO DE SUELOS
650 $aORIGEN DE SUELO
650 $aPATOLOGIAS
650 $aROTACION DE CULTIVOS
653 $aATHELIA ROLFSII
653 $aCROPS
653 $aFUSARIUM OXYSPORUM F
653 $aPLANT PATHOGENIC FUNGI
653 $aROTATIONS
653 $aSOIL FUNGI
653 $aSOILBORNE PATHOGENS
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