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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
15/11/2015 |
Actualizado : |
31/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
OLIVERA-MUZANTE, J.; GIL, J.; VIÑOLES, C.; FIERRO, S. |
Afiliación : |
CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Reproductive outcome with GnRH inclusion at 24 or 36h following a prostaglandin F2α-based protocol for timed AI in ewes. |
Fecha de publicación : |
2013 |
Fuente / Imprenta : |
Animal Reproduction Science, 2013, v.138, no.3-4, p. 175-179. |
ISSN : |
0378-4320 |
DOI : |
10.1016/j.anireprosci.2013.02.013 |
Idioma : |
Inglés |
Notas : |
Article history: Received 2 October 2012 / Received in revised form 19 February 2013 / Accepted 21 February 2013 / Available online 28 February 2013. |
Contenido : |
ABSTRACT.
The objective of this experiment was to study the reproductive performance obtained after a short-interval prostaglandin (PG) F2α-based protocol for timed artificial insemination (TAI) in sheep (Synchrovine®: two injections of PG 7 d apart), including a GnRH analogue at 24 or 36h after the second PG injection. The experiment involved 296 Corriedale ewes (206 multiparous and 90 nulliparous) grazing natural pastures during the breeding season (March-April; UTU " La Carolina" , Flores Uruguay, 33° S-57° W). Ewes were assigned to three treatment groups: a) Synchrovine® (Control, n=101): two injections of D-Cloprostenol 75μg, 7 d apart, b) Synchrovine®+GnRH24 (n=98): Synchrovine® plus GnRH (busereline acetate 8.4μg) 24h after the second PG injection, and c) Synchrovine®+GnRH36 (n=97): Synchrovine® plus GnRH 36h after the second PG injection. All ewes were subjected to cervical TAI (Day 0), 44 to 47h after second PG injection, with fresh extended semen pool from six rams. Reproductive performance of ewes having ovulations and ovulation rate on Day 10, estrous cycle length in ewes that returned to estrus and non-return rate to estrus up to Day 22, fertility, prolificacy and fecundity on Day 70 were analyzed. Ewes having ovulations, ovulation rate, estrous cycle length and prolificacy did not differ between groups (P>0.05). However, non-return to estrus, fertility and fecundity was decreased in Synchrovine®+GnRH24 (P<0.05) and similar between Synchrovine® and Synchrovine®+GnRH36 (P>0.05). It was concluded that the reproductive performance obtained by Synchovine® TAI protocol was impaired by GnRH at 24h and not improved by GnRH administered at 36h after the second PG injection.
© 2013 Elsevier B.V. MenosABSTRACT.
The objective of this experiment was to study the reproductive performance obtained after a short-interval prostaglandin (PG) F2α-based protocol for timed artificial insemination (TAI) in sheep (Synchrovine®: two injections of PG 7 d apart), including a GnRH analogue at 24 or 36h after the second PG injection. The experiment involved 296 Corriedale ewes (206 multiparous and 90 nulliparous) grazing natural pastures during the breeding season (March-April; UTU " La Carolina" , Flores Uruguay, 33° S-57° W). Ewes were assigned to three treatment groups: a) Synchrovine® (Control, n=101): two injections of D-Cloprostenol 75μg, 7 d apart, b) Synchrovine®+GnRH24 (n=98): Synchrovine® plus GnRH (busereline acetate 8.4μg) 24h after the second PG injection, and c) Synchrovine®+GnRH36 (n=97): Synchrovine® plus GnRH 36h after the second PG injection. All ewes were subjected to cervical TAI (Day 0), 44 to 47h after second PG injection, with fresh extended semen pool from six rams. Reproductive performance of ewes having ovulations and ovulation rate on Day 10, estrous cycle length in ewes that returned to estrus and non-return rate to estrus up to Day 22, fertility, prolificacy and fecundity on Day 70 were analyzed. Ewes having ovulations, ovulation rate, estrous cycle length and prolificacy did not differ between groups (P>0.05). However, non-return to estrus, fertility and fecundity was decreased in Synchrovine®+GnRH24 (P<0.05) and similar between Synchrovine® a... Presentar Todo |
Palabras claves : |
Ewe; Fertility; Fixed timed artificial insemination; GnRH; Ovulation rate; Prostaglandin. |
Thesagro : |
FERTILIDAD; OVEJA; OVINOS; OVULACION. |
Asunto categoría : |
L01 Ganadería |
Marc : |
LEADER 02803naa a2200313 a 4500 001 1053896 005 2019-10-31 008 2013 bl uuuu u00u1 u #d 022 $a0378-4320 024 7 $a10.1016/j.anireprosci.2013.02.013$2DOI 100 1 $aOLIVERA-MUZANTE, J. 245 $aReproductive outcome with GnRH inclusion at 24 or 36h following a prostaglandin F2α-based protocol for timed AI in ewes.$h[electronic resource] 260 $c2013 500 $aArticle history: Received 2 October 2012 / Received in revised form 19 February 2013 / Accepted 21 February 2013 / Available online 28 February 2013. 520 $aABSTRACT. The objective of this experiment was to study the reproductive performance obtained after a short-interval prostaglandin (PG) F2α-based protocol for timed artificial insemination (TAI) in sheep (Synchrovine®: two injections of PG 7 d apart), including a GnRH analogue at 24 or 36h after the second PG injection. The experiment involved 296 Corriedale ewes (206 multiparous and 90 nulliparous) grazing natural pastures during the breeding season (March-April; UTU " La Carolina" , Flores Uruguay, 33° S-57° W). Ewes were assigned to three treatment groups: a) Synchrovine® (Control, n=101): two injections of D-Cloprostenol 75μg, 7 d apart, b) Synchrovine®+GnRH24 (n=98): Synchrovine® plus GnRH (busereline acetate 8.4μg) 24h after the second PG injection, and c) Synchrovine®+GnRH36 (n=97): Synchrovine® plus GnRH 36h after the second PG injection. All ewes were subjected to cervical TAI (Day 0), 44 to 47h after second PG injection, with fresh extended semen pool from six rams. Reproductive performance of ewes having ovulations and ovulation rate on Day 10, estrous cycle length in ewes that returned to estrus and non-return rate to estrus up to Day 22, fertility, prolificacy and fecundity on Day 70 were analyzed. Ewes having ovulations, ovulation rate, estrous cycle length and prolificacy did not differ between groups (P>0.05). However, non-return to estrus, fertility and fecundity was decreased in Synchrovine®+GnRH24 (P<0.05) and similar between Synchrovine® and Synchrovine®+GnRH36 (P>0.05). It was concluded that the reproductive performance obtained by Synchovine® TAI protocol was impaired by GnRH at 24h and not improved by GnRH administered at 36h after the second PG injection. © 2013 Elsevier B.V. 650 $aFERTILIDAD 650 $aOVEJA 650 $aOVINOS 650 $aOVULACION 653 $aEwe 653 $aFertility 653 $aFixed timed artificial insemination 653 $aGnRH 653 $aOvulation rate 653 $aProstaglandin 700 1 $aGIL, J. 700 1 $aVIÑOLES, C. 700 1 $aFIERRO, S. 773 $tAnimal Reproduction Science, 2013$gv.138, no.3-4, p. 175-179.
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
13/10/2015 |
Actualizado : |
28/06/2018 |
Tipo de producción científica : |
Actividades de Difusión |
Autor : |
INIA LAS BRUJAS; PROGRAMA NACIONAL PRODUCCIÓN FRUTÍCOLA |
Afiliación : |
ESTACIÓN EXPERIMENTAL "WILSON FERREIRA ALDUNATE", INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PROGRAMA NACIONAL DE INVESTIGACIÓN PRODUCCIÓN FRUTÍCOLA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Actualización técnica de frutales de pepita. |
Complemento del título : |
Seminario técnico. Las Brujas, Canelones (UY), 1-2 octubre 2014. |
Fecha de publicación : |
2014 |
Fuente / Imprenta : |
Canelones (Uruguay): INIA, 2014. |
Páginas : |
118 p. |
Serie : |
(Serie Actividades de Difusión ; 739) |
ISSN : |
1688-9258 |
Idioma : |
Español |
Thesagro : |
FITOMEJORAMIENTO; FRUTALES; FRUTALES DE PEPITA; FRUTALES HOJA CADUCA; MANEJO DEL CULTIVO; MANZANA; PERA; VARIEDADES. |
Asunto categoría : |
H20 Enfermedades de las plantas |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/5061/1/SAD-739.pdf
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Marc : |
LEADER 00663nam a2200241 a 4500 001 1053599 005 2018-06-28 008 2014 bl uuuu u00u1 u #d 022 $a1688-9258 100 1 $aINIA LAS BRUJAS 245 $aActualización técnica de frutales de pepita. 260 $aCanelones (Uruguay): INIA$c2014 300 $a118 p. 490 $a(Serie Actividades de Difusión ; 739) 650 $aFITOMEJORAMIENTO 650 $aFRUTALES 650 $aFRUTALES DE PEPITA 650 $aFRUTALES HOJA CADUCA 650 $aMANEJO DEL CULTIVO 650 $aMANZANA 650 $aPERA 650 $aVARIEDADES 700 1 $aPROGRAMA NACIONAL PRODUCCIÓN FRUTÍCOLA
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