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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
18/12/2020 |
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Actualizado : |
02/09/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
BANCHERO, G.; STEFANOVA, K.; LINDSAY, D.R.; QUINTANS, G.; BALDI, F.; MILTON, J.T.B.; MARTIN, G.B. |
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Afiliación : |
GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; UWA School of Agriculture and Environment, The University of Western Australia, Crawley 6009, Australia.; UWA Institute of Agriculture, The University of Western Australia.; K. STEFANOVA, UWA School of Agriculture and Environment, The University of Western Australia, Crawley 6009, Australia.; D.R. LINDSAY, UWA School of Agriculture and Environment, The University of Western Australia, Crawley 6009, Australia.; GRACIELA QUINTANS ILARIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FERNANDO BALDI, Departament of Animal Science, College of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Jaboticabal/SP, CEP 14870-720, Brazil.; UWA School of Agriculture and Environment, The University of Western Australia, Crawley 6009, Australia; UWA School of Agriculture and Environment, The University of Western Australia, Crawley 6009, Australia. |
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Título : |
Ovulation and ovulation rate in ewes under grazing conditions: factors affecting the response to short-term supplementation. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Animal, Volume 15, Issue 2, February 2021, Article number 100100. OPEN ACCESS. Doi: https://doi.org/10.1016/j.animal.2020.100100 |
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ISSN : |
1751-7311 |
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DOI : |
10.1016/j.animal.2020.100100 |
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Idioma : |
Inglés |
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Notas : |
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). |
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Contenido : |
Abstract:
The relationships between ovulation rate and nutrition remain confused, probably because of uncontrolled variation in experimental conditions. To help resolve the problem, we analyzed data from 20 experiments conducted between 2002 and 2016, in Uruguay with grazing ewes. All experiments were carried out by a single laboratory under comparable conditions of experimental design and measured variables. The studies used a total of 3?720 ewes, of purebred Corriedale, Polwarth, or East Friesian x Polwarth genotypes. In all experiments, a control group grazed native pastures and extra nutrition was provided to the treatment groups using either improved pastures or supplements. Ovulation rate was measured by counting corpora lutea using laparoscopy or rectal ultrasound or by counting foetuses at ultrasound on day 45 of gestation. For statistical analysis, data were grouped according to nutritional treatment (control or supplemented) and, within these groups, type of supplement to provide energy or protein (protected or not from rumen degradation). Across all experiments, 92?99% of the ewes ovulated and the effects of diet, length of supplementation, and initial live weight and genotype are reported. Within diets, ovulation was most affected by overall energy intake during supplementation (P?MenosAbstract:
The relationships between ovulation rate and nutrition remain confused, probably because of uncontrolled variation in experimental conditions. To help resolve the problem, we analyzed data from 20 experiments conducted between 2002 and 2016, in Uruguay with grazing ewes. All experiments were carried out by a single laboratory under comparable conditions of experimental design and measured variables. The studies used a total of 3?720 ewes, of purebred Corriedale, Polwarth, or East Friesian x Polwarth genotypes. In all experiments, a control group grazed native pastures and extra nutrition was provided to the treatment groups using either improved pastures or supplements. Ovulation rate was measured by counting corpora lutea using laparoscopy or rectal ultrasound or by counting foetuses at ultrasound on day 45 of gestation. For statistical analysis, data were grouped according to nutritional treatment (control or supplemented) and, within these groups, type of supplement to provide energy or protein (protected or not from rumen degradation). Across all experiments, 92?99% of the ewes ovulated and the effects of diet, length of supplementation, and initial live weight and genotype are reported. Within diets, ovulation was most affected by overall energy intake during supplementation (P?Presentar Todo |
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Palabras claves : |
ENERGY; OVINE; PASTURES; PROTEIN; TANNINS. |
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Thesagro : |
OVINOS. |
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Asunto categoría : |
-- |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16665/1/1-s2.0-S1751731120301026-main.pdf
https://www.sciencedirect.com/science/article/pii/S1751731120301026
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Marc : |
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260 $c2021
500 $aArticle 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).
520 $aAbstract: The relationships between ovulation rate and nutrition remain confused, probably because of uncontrolled variation in experimental conditions. To help resolve the problem, we analyzed data from 20 experiments conducted between 2002 and 2016, in Uruguay with grazing ewes. All experiments were carried out by a single laboratory under comparable conditions of experimental design and measured variables. The studies used a total of 3?720 ewes, of purebred Corriedale, Polwarth, or East Friesian x Polwarth genotypes. In all experiments, a control group grazed native pastures and extra nutrition was provided to the treatment groups using either improved pastures or supplements. Ovulation rate was measured by counting corpora lutea using laparoscopy or rectal ultrasound or by counting foetuses at ultrasound on day 45 of gestation. For statistical analysis, data were grouped according to nutritional treatment (control or supplemented) and, within these groups, type of supplement to provide energy or protein (protected or not from rumen degradation). Across all experiments, 92?99% of the ewes ovulated and the effects of diet, length of supplementation, and initial live weight and genotype are reported. Within diets, ovulation was most affected by overall energy intake during supplementation (P?650 $aOVINOS
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653 $aPASTURES
653 $aPROTEIN
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700 1 $aSTEFANOVA, K.
700 1 $aLINDSAY, D.R.
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700 1 $aBALDI, F.
700 1 $aMILTON, J.T.B.
700 1 $aMARTIN, G.B.
773 $tAnimal, Volume 15, Issue 2, February 2021, Article number 100100. OPEN ACCESS. Doi: https://doi.org/10.1016/j.animal.2020.100100
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Registro original : |
INIA La Estanzuela (LE) |
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| Registros recuperados : 1,137 | |
| 101. |  | BARRIOS, E.; BUFFA, I.; CIAPPESONI, G.; SOTELO, D.; LLOVET, P.; FONSECA, J.; LAPETINA, J.; AYALA, W. Módulo intensivo de producción ovina: conjugando investigación con enfoque de sistemas y transferencia tecnológica. En: DÍA DE CAMPO, 2019, UNIDAD EXPERIMENTAL PALO A PIQUE (UEPP), TREINTA Y TRES, UY. p. 21-26.| Biblioteca(s): INIA Treinta y Tres. |
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| 114. | | Benoit, G.; Darré, L.; Villagrán, M.; Heinzen, M.; Bianchi, G.; Orcasberro, R. Efecto de la nutrición preparto sobre la performance de ovejas Corriedale en campo natural ln: Seminario Nacional de Campo Natural, 2 : 1990 nov 15-16 : Tacuarembó Montevideo (Uruguay): Hemisferio Sur, 1990. p341-345 Participaron en el seminario : INIA, Sociedad Uruguaya de Pasturas Naturales, Facultad de Agronomía, Plan Agropecuario| Biblioteca(s): INIA La Estanzuela. |
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| 119. | | BIANCHI, G. Confinamiento de corderos. In: SARAVIA, H.; AYALA, W.; BARRIOS, E. (Ed.). Seminario de actualización técnica: producción de carne ovina de calidad. Montevideo (UY) : INIA, 2014. p. 113-125. (INIA Serie Técnica; 221)| Tipo: Capítulo en Libro Técnico-Científico |
| Biblioteca(s): INIA Tacuarembó; INIA Treinta y Tres. |
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| Registros recuperados : 1,137 | |
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