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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
14/11/2015 |
Actualizado : |
14/11/2015 |
Tipo de producción científica : |
Informes Agroclimáticos |
Autor : |
GIMENEZ, A.; CASTAÑO, J.; CAL, A.; TISCORNIA, G.; SCHIAVI, C. |
Afiliación : |
AGUSTIN EDUARDO GIMENEZ FUREST, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSE PEDRO CASTAÑO SANCHEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ADRIAN TABARE CAL ALVAREZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUADALUPE TISCORNIA TOSAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS IGNACIO SCHIAVI RAMPELBERG, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Informe Agroclimático 2015 - Situación a Octubre. |
Fecha de publicación : |
2015 |
Fuente / Imprenta : |
Montevideo (Uruguay): INIA, 2015. |
Páginas : |
4 p. |
Idioma : |
Español |
Palabras claves : |
AGROCLIMA; AGROCLIMATOLOGÍA; BOLETIN AGROCLIMÁTICO; CARACTERIZACIÓN AGROCLIMÁTICA; DIRECCION VIENTO; ESTACIONES AGROMETEOROLOGICAS; ESTACIONES AUTOMATICAS; ESTACIONES INIA; ESTADO DEL TIEMPO; ESTRÉS HÍDRICO; GRAFICAS AGROCLIMATICOS; GRAS; HELIOFANOGRAFO; INFORMACION SATELITAL; INUNDACIONES; LLUVIAS DIARIAS; MAXIMA; MEDIA; MINIMA; PANEL SOLAR; PERSPECTIVAS CLIMATICAS; PLUVIOMETRO; PRECIPITACION NACIONAL; PREVENCION HELADAS; PRONOSTICO; SENSOR; SIMETRICO; TANQUE A; TERMOCUPLAS; TERMOHIDROGRAFO; VARIABLES AGROCLIMATICAS; VELETA. |
Thesagro : |
AGROCLIMATOLOGIA; CAMBIO CLIMATICO; CLIMA; CLIMATOLOGIA; ESTACIONES METEOROLOGICAS; ESTRES HIDRICO; EVAPORACION; EVAPOTRANSPIRACION; HUMEDAD; HUMEDAD RELATIVA; LLUVIA; METEOROLOGIA; PERSPECTIVAS; PLUVIOMETROS; PRONOSTICO DEL TIEMPO; SENSORES; SISTEMAS; SISTEMAS DE INFORMACION; SUELO; TEMPERATURA; TERMOMETROS. |
Asunto categoría : |
P40 Meteorología y climatología |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/5187/1/Inf.Agr.-octubre-2015.pdf
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Marc : |
LEADER 02066nam a2200793 a 4500 001 1053878 005 2015-11-14 008 2015 bl uuuu u0uu1 u #d 100 1 $aGIMENEZ, A. 245 $aInforme Agroclimático 2015 - Situación a Octubre.$h[electronic resource] 260 $aMontevideo (Uruguay): INIA$c2015 300 $a4 p. 650 $aAGROCLIMATOLOGIA 650 $aCAMBIO CLIMATICO 650 $aCLIMA 650 $aCLIMATOLOGIA 650 $aESTACIONES METEOROLOGICAS 650 $aESTRES HIDRICO 650 $aEVAPORACION 650 $aEVAPOTRANSPIRACION 650 $aHUMEDAD 650 $aHUMEDAD RELATIVA 650 $aLLUVIA 650 $aMETEOROLOGIA 650 $aPERSPECTIVAS 650 $aPLUVIOMETROS 650 $aPRONOSTICO DEL TIEMPO 650 $aSENSORES 650 $aSISTEMAS 650 $aSISTEMAS DE INFORMACION 650 $aSUELO 650 $aTEMPERATURA 650 $aTERMOMETROS 653 $aAGROCLIMA 653 $aAGROCLIMATOLOGÍA 653 $aBOLETIN AGROCLIMÁTICO 653 $aCARACTERIZACIÓN AGROCLIMÁTICA 653 $aDIRECCION VIENTO 653 $aESTACIONES AGROMETEOROLOGICAS 653 $aESTACIONES AUTOMATICAS 653 $aESTACIONES INIA 653 $aESTADO DEL TIEMPO 653 $aESTRÉS HÍDRICO 653 $aGRAFICAS AGROCLIMATICOS 653 $aGRAS 653 $aHELIOFANOGRAFO 653 $aINFORMACION SATELITAL 653 $aINUNDACIONES 653 $aLLUVIAS DIARIAS 653 $aMAXIMA 653 $aMEDIA 653 $aMINIMA 653 $aPANEL SOLAR 653 $aPERSPECTIVAS CLIMATICAS 653 $aPLUVIOMETRO 653 $aPRECIPITACION NACIONAL 653 $aPREVENCION HELADAS 653 $aPRONOSTICO 653 $aSENSOR 653 $aSIMETRICO 653 $aTANQUE A 653 $aTERMOCUPLAS 653 $aTERMOHIDROGRAFO 653 $aVARIABLES AGROCLIMATICAS 653 $aVELETA 700 1 $aCASTAÑO, J. 700 1 $aCAL, A. 700 1 $aTISCORNIA, G. 700 1 $aSCHIAVI, C.
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INIA Las Brujas (LB) |
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| Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha actual : |
09/09/2014 |
Actualizado : |
04/02/2020 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
CHANVALLON, A.; BLACHE, D.; CHADWICK, A.; ESMAILI, T.; HAWKEN, P.A.R.; MARTIN, G.B.; VIÑOLES, C.; FABRE-NYS, C. |
Afiliación : |
A. CHANVALLON, Centre Interrégional d’Information et de Recherche en Production Ovine, Site Expérimental du Mourier, 87800 St Priest Ligoure, FranceUMR 6175 INRA Physiologie de la Reproduction et des Comportements - CNRS - Université de Tours - Haras Nationaux, 37380; D. BLACHE, UWA Institute of Agriculture, The University of Western Australia, Crawley 6009, Perth, Australia; A. CHADWICK, UWA Institute of Agriculture, The University of Western Australia, Crawley 6009, Perth, Australia; T. ESMAILI, UWA Institute of Agriculture, The University of Western Australia, Crawley 6009, Perth, Australia; P.A.R. HAWKEN, UWA Institute of Agriculture, The University of Western Australia, Crawley 6009, Perth, Australia; G.B. MARTIN, UWA Institute of Agriculture, The University of Western Australia, Crawley 6009, Perth, Australia; CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; UWA Institute of Agriculture, The University of Western Australia, Crawley 6009, Perth, Australia; C. FABRE-NYS, UMR 6175 INRA Physiologie de la Reproduction et des Comportements - CNRS - Université de Tours - Haras Nationaux, 37380 Nouzilly, France. |
Título : |
Sexual experience and temperament affect the response of Merino ewes to the ram effect during the anoestrous season. |
Fecha de publicación : |
2010 |
Fuente / Imprenta : |
Animal Reproduction Science, 2010, v. 119, p. 205-211. |
DOI : |
10.1016/j.anireprosci.2010.02.003 |
Idioma : |
Inglés |
Notas : |
Article history: Received 26 October 2009 // Received in revised form 11 January 2010 // Accepted 4 February 2010 // Available online 11 February 2010. Corresponding author at: : Audrey.Chanvallon@tours.inra.fr // Acknowledgments: This research was supported by the Australian Research Council (Project DP0558952) and by Meat & Livestock Australia (Project MS027 ?LambMax?). We thank Steve Gray for his assistance in the care and management of the animals, and Margaret Blackberry for her assistance with the hormone assays. This work was a part of Audrey Chanvallon?s PhD project and was supported by CIFRE Convention and the ANRT. We thank also the Région Centre. |
Contenido : |
Abstract: In seasonally anoestrous ewes of many breeds, the introduction of rams triggers an increase in gonadotrophin secretion that induces ovulation, a phenomenon known as the ram effect. The ram effect is a practical method for mating ewes outside the natural breeding season, and also can provide synchronised lambing, but the variability of the response, especially in young animals, reduces its potential for widespread application. The aim of our study was to assess two factors that are thought to contribute to the variability in young ewes: temperament and sexual experience. We used anovulatory ewes from a flock that had been genetically selected for calm or nervous temperament and compared the endocrine and ovarian responses to the ram effect in four groups (each n = 15): calm and parous (3-6 years old); calm and nulliparous (2 years old); nervous and parous; and nervous and nulliparous. Parous ewes, independently of their temperament, exhibited a faster endocrine response and a higher proportion of females cycling after ram introduction than nulliparous ewes. Nervous ewes exhibited a higher proportion of females cycling after ram introduction than calm ewes, but only in the nulliparous group. We conclude that temperament exerts little influence on the response to the ram effect in sexually experienced ewes, and that females of nervous temperament appear to respond better when sexually naive. Both sexual experience and temperament need to be taken into consideration when flock management involves the ram effect. Finally, some ewes were cyclic at ram introduction, yet exhibited an increase in LH secretion even in the presence of high concentrations of progesterone. The mechanism by which the inhibitory effect of progesterone on LH secretion was bypassed needs to be clarified. MenosAbstract: In seasonally anoestrous ewes of many breeds, the introduction of rams triggers an increase in gonadotrophin secretion that induces ovulation, a phenomenon known as the ram effect. The ram effect is a practical method for mating ewes outside the natural breeding season, and also can provide synchronised lambing, but the variability of the response, especially in young animals, reduces its potential for widespread application. The aim of our study was to assess two factors that are thought to contribute to the variability in young ewes: temperament and sexual experience. We used anovulatory ewes from a flock that had been genetically selected for calm or nervous temperament and compared the endocrine and ovarian responses to the ram effect in four groups (each n = 15): calm and parous (3-6 years old); calm and nulliparous (2 years old); nervous and parous; and nervous and nulliparous. Parous ewes, independently of their temperament, exhibited a faster endocrine response and a higher proportion of females cycling after ram introduction than nulliparous ewes. Nervous ewes exhibited a higher proportion of females cycling after ram introduction than calm ewes, but only in the nulliparous group. We conclude that temperament exerts little influence on the response to the ram effect in sexually experienced ewes, and that females of nervous temperament appear to respond better when sexually naive. Both sexual experience and temperament need to be taken into consideration wh... Presentar Todo |
Palabras claves : |
CYCLICITY; EXPERIENCE; MALE EFFECT; REPRODUCCIÓN; SHEEP; TEMPERAMENT. |
Thesagro : |
OVINOS. |
Asunto categoría : |
L01 Ganadería |
Marc : |
LEADER 03332naa a2200313 a 4500 001 1050084 005 2020-02-04 008 2010 bl uuuu u00u1 u #d 024 7 $a10.1016/j.anireprosci.2010.02.003$2DOI 100 1 $aCHANVALLON, A. 245 $aSexual experience and temperament affect the response of Merino ewes to the ram effect during the anoestrous season. 260 $c2010 500 $aArticle history: Received 26 October 2009 // Received in revised form 11 January 2010 // Accepted 4 February 2010 // Available online 11 February 2010. Corresponding author at: : Audrey.Chanvallon@tours.inra.fr // Acknowledgments: This research was supported by the Australian Research Council (Project DP0558952) and by Meat & Livestock Australia (Project MS027 ?LambMax?). We thank Steve Gray for his assistance in the care and management of the animals, and Margaret Blackberry for her assistance with the hormone assays. This work was a part of Audrey Chanvallon?s PhD project and was supported by CIFRE Convention and the ANRT. We thank also the Région Centre. 520 $aAbstract: In seasonally anoestrous ewes of many breeds, the introduction of rams triggers an increase in gonadotrophin secretion that induces ovulation, a phenomenon known as the ram effect. The ram effect is a practical method for mating ewes outside the natural breeding season, and also can provide synchronised lambing, but the variability of the response, especially in young animals, reduces its potential for widespread application. The aim of our study was to assess two factors that are thought to contribute to the variability in young ewes: temperament and sexual experience. We used anovulatory ewes from a flock that had been genetically selected for calm or nervous temperament and compared the endocrine and ovarian responses to the ram effect in four groups (each n = 15): calm and parous (3-6 years old); calm and nulliparous (2 years old); nervous and parous; and nervous and nulliparous. Parous ewes, independently of their temperament, exhibited a faster endocrine response and a higher proportion of females cycling after ram introduction than nulliparous ewes. Nervous ewes exhibited a higher proportion of females cycling after ram introduction than calm ewes, but only in the nulliparous group. We conclude that temperament exerts little influence on the response to the ram effect in sexually experienced ewes, and that females of nervous temperament appear to respond better when sexually naive. Both sexual experience and temperament need to be taken into consideration when flock management involves the ram effect. Finally, some ewes were cyclic at ram introduction, yet exhibited an increase in LH secretion even in the presence of high concentrations of progesterone. The mechanism by which the inhibitory effect of progesterone on LH secretion was bypassed needs to be clarified. 650 $aOVINOS 653 $aCYCLICITY 653 $aEXPERIENCE 653 $aMALE EFFECT 653 $aREPRODUCCIÓN 653 $aSHEEP 653 $aTEMPERAMENT 700 1 $aBLACHE, D. 700 1 $aCHADWICK, A. 700 1 $aESMAILI, T. 700 1 $aHAWKEN, P.A.R. 700 1 $aMARTIN, G.B. 700 1 $aVIÑOLES, C. 700 1 $aFABRE-NYS, C. 773 $tAnimal Reproduction Science, 2010$gv. 119, p. 205-211.
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