InVet. 2011, 13(2): 39-45 ISSN 1514-6634 (impreso) PROGESTERONA Y CIPIONATO...
Three experiments were conducted (EI, n: 209; EII, n: 208; y EIII, n: 188) using Angus heifers in order to compare the use of estradiol cypionate (EC) at device removal or estradiol benzoate (EB) 24 h after in a FTAI protocol. On day 0 heifers received a progesterone intravaginal device plus EB. On...
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| Autores principales: | , , , , |
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| Formato: | Artículo publishedVersion |
| Lenguaje: | Español |
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Universidad de Buenos Aires. Facultad de Ciencias Veterinarias.
2011
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| Acceso en línea: | http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=pveterinaria/invet&cl=CL1&d=HWA_4257 https://repositoriouba.sisbi.uba.ar/gsdl/collect/pveterinaria/invet/index/assoc/HWA_4257.dir/4257.PDF |
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I28-R145-HWA_42572024-11-05 InVet. 2011, 13(2): 39-45 ISSN 1514-6634 (impreso) PROGESTERONA Y CIPIONATO... Three experiments were conducted (EI, n: 209; EII, n: 208; y EIII, n: 188) using Angus heifers in order to compare the use of estradiol cypionate (EC) at device removal or estradiol benzoate (EB) 24 h after in a FTAI protocol. On day 0 heifers received a progesterone intravaginal device plus EB. On day 8, the intravaginal device was removed and heifers received a luteolytic dose of PGF. At device removal heifers were randomized to receive either EC at 0 h or EB at 24 h. On day 10, 50-53 h after device removal, fixed timed artificial insemination was performed using frozen/thawed semen of proven fertility (3 bulls for EI and 2 for EII and EIII) and two inseminators. Pregnancy rates were not different between treatments (EI: 67.8%; EII: 59.2%; EIII: 58.4%) or inseminators (p>0.05); however a bull effect was observed in experiments I (B: 47.8%; F: 75.0%; M: 72.0%; p<0.05) and II (M: 68.8%; ME: 48.5%; p<0.05), but not in experiment III (3609: 56.0; M: 60.6%; p>0.05). Interactions were not significant. In conclusion, according to our finding, estradiol cypionate could be used instead of estradiol benzoate to synchronize ovulation without affecting the pregnancy rate at fixed timed artificial insemination. Fil: Veiga, P. Los Lazos S.A. Cabaña El Volcán. Buenos Aires, Argentina Fil: Montiel, J. Dinfe S.A. Cabaña Santo Domingo. Buenos Aires, Argentina Fil: Uslenghi, G. CONICET. Buenos Aires, Argentina Fil: Uslenghi, G. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Veterinarias. Área de Reproducción, FISFARVET. Tandil, Argentina Fil: Callejas, S. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Veterinarias. Área de Reproducción, FISFARVET. Tandil, Argentina Veiga, P. Montiel, J. Chayer, R. Uslenghi, G. Callejas, S. 2011 Se realizaron 3 ensayos (EI, n: 209; EII, n: 208; y EIII, n: 188) utilizando vaquillonas Angus con el objetivo de evaluar el uso del cipionato de estradiol administrado al retirar un dispositivo intravaginal con progesterona sobre el porcentaje de preñez a la IATF. En el día 0 se colocó un dispositivo intravaginal más benzoato de estradiol. En el día 8 se retiró el dispositivo y se inyectó un agente luteolítico y las vaquillonas fueron distribuidas al azar para recibir cipionato de estradiol en ese momento o benzoato de estradiol 24 horas después. En el día 10, 50-53 h post retiro del dispositivo, se realizó IATF utilizando semen de toros de probada fertilidad (3 en EI, 2 en los EII y EIII) y dos inseminadores. No se observaron efectos del tratamiento (EI: 67,8%; EII: 59,2%; EIII: 58,4%) y del inseminador (p>0,05); no obstante se observó un efecto del toro en EI (B: 47,8%; F: 75,0%; M: 72,0%; p<0,05) y EII (M: 68,8%; ME: 48,5%; p<0.05), no así en EIII (3609: 56,0; M: 60,6%; p>0,05). Se concluye que, el cipionato de estradiol aplicado al retirar un dispositivo con progesterona puede reemplazar al benzoato de estradiol sin afectar el porcentaje de preñez. application/pdf 1514-6634 (impreso) 1668-3498 (en línea) progesterona cipionato de estradiol vaquillonas IATF preñez progesterone estradiol cipionate heifers FTAI pregnancy spa Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ InVet, vol. 13, nº2 Efecto de diferentes ésteres de estradiol usados para sincronizar la ovulación sobre el porcentaje de preñez post IATF en vaquillonas Angus Effect of different esters of estradiol used to synchronize ovulation on pregnancy rate to FTAI in Angus heifers info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=pveterinaria/invet&cl=CL1&d=HWA_4257 https://repositoriouba.sisbi.uba.ar/gsdl/collect/pveterinaria/invet/index/assoc/HWA_4257.dir/4257.PDF |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-145 |
| collection |
Repositorio Digital de la Universidad de Buenos Aires (UBA) |
| language |
Español |
| orig_language_str_mv |
spa |
| topic |
progesterona cipionato de estradiol vaquillonas IATF preñez progesterone estradiol cipionate heifers FTAI pregnancy |
| spellingShingle |
progesterona cipionato de estradiol vaquillonas IATF preñez progesterone estradiol cipionate heifers FTAI pregnancy Veiga, P. Montiel, J. Chayer, R. Uslenghi, G. Callejas, S. InVet. 2011, 13(2): 39-45 ISSN 1514-6634 (impreso) PROGESTERONA Y CIPIONATO... |
| topic_facet |
progesterona cipionato de estradiol vaquillonas IATF preñez progesterone estradiol cipionate heifers FTAI pregnancy |
| description |
Three experiments were conducted (EI, n: 209; EII, n: 208; y EIII, n: 188) using Angus heifers in order to compare the use of estradiol cypionate (EC) at device removal or estradiol benzoate (EB) 24 h after in a FTAI protocol. On day 0 heifers received a progesterone intravaginal device plus EB. On day 8, the intravaginal device was removed and heifers received a luteolytic dose of PGF. At device removal heifers were randomized to receive either EC at 0 h or EB at 24 h. On day 10, 50-53 h after device removal, fixed timed artificial insemination was performed using frozen/thawed semen of proven fertility (3 bulls for EI and 2 for EII and EIII) and two inseminators. Pregnancy rates were not different between treatments (EI: 67.8%; EII: 59.2%; EIII: 58.4%) or inseminators (p>0.05); however a bull effect was observed in experiments I (B: 47.8%; F: 75.0%; M: 72.0%; p<0.05) and II (M: 68.8%; ME: 48.5%; p<0.05), but not in experiment III (3609: 56.0; M: 60.6%; p>0.05). Interactions were not significant. In conclusion, according to our finding, estradiol cypionate could be used instead of estradiol benzoate to synchronize ovulation without affecting the pregnancy rate at fixed timed artificial insemination. |
| format |
Artículo Artículo publishedVersion |
| author |
Veiga, P. Montiel, J. Chayer, R. Uslenghi, G. Callejas, S. |
| author_facet |
Veiga, P. Montiel, J. Chayer, R. Uslenghi, G. Callejas, S. |
| author_sort |
Veiga, P. |
| title |
InVet. 2011, 13(2): 39-45 ISSN 1514-6634 (impreso) PROGESTERONA Y CIPIONATO... |
| title_short |
InVet. 2011, 13(2): 39-45 ISSN 1514-6634 (impreso) PROGESTERONA Y CIPIONATO... |
| title_full |
InVet. 2011, 13(2): 39-45 ISSN 1514-6634 (impreso) PROGESTERONA Y CIPIONATO... |
| title_fullStr |
InVet. 2011, 13(2): 39-45 ISSN 1514-6634 (impreso) PROGESTERONA Y CIPIONATO... |
| title_full_unstemmed |
InVet. 2011, 13(2): 39-45 ISSN 1514-6634 (impreso) PROGESTERONA Y CIPIONATO... |
| title_sort |
invet. 2011, 13(2): 39-45 issn 1514-6634 (impreso) progesterona y cipionato... |
| publisher |
Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. |
| publishDate |
2011 |
| url |
http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=pveterinaria/invet&cl=CL1&d=HWA_4257 https://repositoriouba.sisbi.uba.ar/gsdl/collect/pveterinaria/invet/index/assoc/HWA_4257.dir/4257.PDF |
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1824359798188015616 |