catalano2.p65
The objective of this study was to evaluate the effect of the physiological status and percentage of Friesian breed on the reproductive performance of ewes after the treatment of oestrus induction. Ewes crosses (Friesian x Corriedale) were divided in 2 groups; Group ORD: 55 ewes in lactating period...
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| Autores principales: | , , , , |
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| Formato: | Artículo publishedVersion |
| Lenguaje: | Español |
| Publicado: |
Universidad de Buenos Aires. Facultad de Ciencias Veterinarias.
2005
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| Materias: | |
| Acceso en línea: | http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=pveterinaria/invet&cl=CL1&d=HWA_4601 https://repositoriouba.sisbi.uba.ar/gsdl/collect/pveterinaria/invet/index/assoc/HWA_4601.dir/4601.PDF |
| Aporte de: |
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I28-R145-HWA_4601 |
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| record_format |
dspace |
| 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 |
oveja lechera inducción de celo raza Frisona estado fisiológico dairy ewes estrus induction Friesian lactating |
| spellingShingle |
oveja lechera inducción de celo raza Frisona estado fisiológico dairy ewes estrus induction Friesian lactating Catalano, R. González, C. Teruel, M. Cabodevila, J. Callejas, S. catalano2.p65 |
| topic_facet |
oveja lechera inducción de celo raza Frisona estado fisiológico dairy ewes estrus induction Friesian lactating |
| description |
The objective of this study was to evaluate the effect of the physiological status and percentage of Friesian breed on the reproductive performance of ewes after the treatment of oestrus induction. Ewes crosses (Friesian x Corriedale) were divided in 2 groups; Group ORD: 55 ewes in lactating period and Group SECA: 45 ewes in the dry period. The animals were distributed in two subgroups; F50 and F75 (50% and 75% of Friesian breed, respectively). Intravaginal sponges with 60 mg of medroxiprogesterone acetate were used; these devices were withdrawn 12 days later when 500 UI of equine chorionic gonadotrophin were injected. The ewes were mated with rams. Blood samples were taken for the determination of the plasmatic levels of progesterone at the days 6, 11 and 16 after service. The percentages of ewes in estrus and with ovarian reactivation were similar among groups (P>0.05), 82.0% and 96.7%, respectively. The pregnancy rate, fertility and lambing rate were higher in F50 than in F75 (75.0% vs. 49.0%; 78.9% vs. 56.8% y 72.5% vs. 43.1%, respectively, (P<0.05). In conclusion, the pregnancy rate, the fertility and the lambing rate are dependents of the percentage of Friesian breed but independent of the physiological status. |
| format |
Artículo Artículo publishedVersion |
| author |
Catalano, R. González, C. Teruel, M. Cabodevila, J. Callejas, S. |
| author_facet |
Catalano, R. González, C. Teruel, M. Cabodevila, J. Callejas, S. |
| author_sort |
Catalano, R. |
| title |
catalano2.p65 |
| title_short |
catalano2.p65 |
| title_full |
catalano2.p65 |
| title_fullStr |
catalano2.p65 |
| title_full_unstemmed |
catalano2.p65 |
| title_sort |
catalano2.p65 |
| publisher |
Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. |
| publishDate |
2005 |
| url |
http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=pveterinaria/invet&cl=CL1&d=HWA_4601 https://repositoriouba.sisbi.uba.ar/gsdl/collect/pveterinaria/invet/index/assoc/HWA_4601.dir/4601.PDF |
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1824359802969522176 |
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I28-R145-HWA_46012024-11-05 catalano2.p65 The objective of this study was to evaluate the effect of the physiological status and percentage of Friesian breed on the reproductive performance of ewes after the treatment of oestrus induction. Ewes crosses (Friesian x Corriedale) were divided in 2 groups; Group ORD: 55 ewes in lactating period and Group SECA: 45 ewes in the dry period. The animals were distributed in two subgroups; F50 and F75 (50% and 75% of Friesian breed, respectively). Intravaginal sponges with 60 mg of medroxiprogesterone acetate were used; these devices were withdrawn 12 days later when 500 UI of equine chorionic gonadotrophin were injected. The ewes were mated with rams. Blood samples were taken for the determination of the plasmatic levels of progesterone at the days 6, 11 and 16 after service. The percentages of ewes in estrus and with ovarian reactivation were similar among groups (P>0.05), 82.0% and 96.7%, respectively. The pregnancy rate, fertility and lambing rate were higher in F50 than in F75 (75.0% vs. 49.0%; 78.9% vs. 56.8% y 72.5% vs. 43.1%, respectively, (P<0.05). In conclusion, the pregnancy rate, the fertility and the lambing rate are dependents of the percentage of Friesian breed but independent of the physiological status. Fil: Catalano, R. F. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Veterinarias. Departamento de Fisiopatología. Buenos Aires, Argentina Fil: González, C. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Veterinarias. Área de Reproducción, FISFARVET. Tandil, Argentina Fil: Teruel, M. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Veterinarias. Área de Reproducción, FISFARVET. Tandil, Argentina Fil: Cabodevila, J. 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 Catalano, R. González, C. Teruel, M. Cabodevila, J. Callejas, S. 2005 El objetivo del trabajo fue evaluar el efecto del estado fisiológico y del porcentaje de raza Frisona sobre la respuesta reproductiva de ovejas lecheras luego de un tratamiento de inducción de celos. Ovejas cruzas (Frisona x Corriedale) se dividieron en 2 grupos; el Grupo ORD: 55 ovejas en ordeño y el Grupo SECA: 45 ovejas secas. Los animales se distribuyeron en dos subgrupos; F50 y F75 (50% y 75% de raza Frisona, respectivamente). Se colocaron esponjas intravaginales (60 mg de acetato de medroxiprogesterona) durante 12 días; al retiro de las mismas se inyectaron 500 UI de gonadotrofina coriónica equina. Se realizó servicio dirigido. Se tomaron muestras sanguíneas para la determinación de progesterona los días 6, 11 y 16 posteriores al servicio. Los porcentajes de ovejas en celo y con reactivación ovárica fueron similares entre grupos (P>0,05), 82,0% y 96,7%, respectivamente. El porcentaje de preñez (diagnosticado por ultrasonografía), la fertilidad y el porcentaje de parición fueron mayores en F50 comparado con F75 (75,0% vs. 49,0%; 78,9% vs. 56,8% y 72,5% vs. 43,1%, respectivamente. P<0,05). Se concluye que, bajo las condiciones del presente trabajo, los porcentajes de preñez, fertilidad y parición dependen del porcentaje de raza Frisona y son independientes del estado fisiológico. application/pdf 1514-6634 (impreso) 1668-3498 (en línea) oveja lechera inducción de celo raza Frisona estado fisiológico dairy ewes estrus induction Friesian lactating 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. 07, nº1 Efecto del estado fisiológico y del porcentaje de raza Frisona sobre la respuesta reproductiva de ovejas en servicio de primavera Effect of physiological state and percentage of Friesian breed on the reproductive performance of dairy ewes treated to oestrus induction 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_4601 https://repositoriouba.sisbi.uba.ar/gsdl/collect/pveterinaria/invet/index/assoc/HWA_4601.dir/4601.PDF |