Brief Communication: Effect of Post-Mating Pro Gestagen Administration on Pregnancy Rate in Crossbred Goats Following an Induced Estrus
Estrus induced with progesterone or progestagens have low fertility compared to natural estrus. However, post-mating progesterone administration has been reported by increases embryo development and pregnancy rate; therefore the aim of this study was to evaluate the effect of post-mating progestag...
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| Format: | Article |
| Language: | English |
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Universidad del Zulia
2009-07-01
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| Series: | Revista Científica |
| Online Access: | http://www.produccioncientificaluz.org/index.php/cientifica/article/view/15399 |
| _version_ | 1811163189651439616 |
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| author | Héctor Nava-Trujillo José Chango-Villasmil Geovanny Finol-Parra Juan Maldonado-Suárez Paola Torres-Rodríguez Freygelinne Carrillo-Fernández Lidya Gil-Huerta |
| author_facet | Héctor Nava-Trujillo José Chango-Villasmil Geovanny Finol-Parra Juan Maldonado-Suárez Paola Torres-Rodríguez Freygelinne Carrillo-Fernández Lidya Gil-Huerta |
| author_sort | Héctor Nava-Trujillo |
| collection | DOAJ |
| description | Estrus induced with progesterone or progestagens have low fertility compared to natural estrus. However, post-mating progesterone administration has been reported by increases embryo development and pregnancy rate; therefore the aim of this study was to evaluate the effect of post-mating progestagen administration on pregnancy rate after medroxyprogesterone acetate (MAP) induced estrus in crossbred goats. Estrus induction was started at 31.3 Ó 1.7 days post-partum with intra- vaginal sponges impregnated with 60 mg of MAP during 14 days and at time of sponge removal were applied 500 IU of eCG intramuscular. Estrus was detected every 6 hours from 24 hours onwards after sponge withdrawal. Goats were naturally mated with two entry bucks. Five days post-mating, mated goats were randomly assorted into two groups, control group (n=18), without any treatment, and MAP group (n=18), receiving a sponge with 60 mg of MAP for fourteen days. Ultrasonographyc diagnosis of pregnancy was performed at day 50 post-mating. MAP treatment, did not affect the pregnancy rate, with 44.4% (8/18) in MAP group, while in control group was 55.5% (10/18), P>0.05. In conclusion, MAP treatment with a sponge impregnated with 60 mg of MAP between days 5 and 19 post-mating did not affect the pregnancy rate after progestagen induced estrus during the early post-partum period in crossbred tropical goats
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| first_indexed | 2024-04-10T06:40:59Z |
| format | Article |
| id | doaj.art-ac56cc62fa424169951cf2b39b253c81 |
| institution | Directory Open Access Journal |
| issn | 0798-2259 2521-9715 |
| language | English |
| last_indexed | 2024-04-10T06:40:59Z |
| publishDate | 2009-07-01 |
| publisher | Universidad del Zulia |
| record_format | Article |
| series | Revista Científica |
| spelling | doaj.art-ac56cc62fa424169951cf2b39b253c812023-02-28T15:28:08ZengUniversidad del ZuliaRevista Científica0798-22592521-97152009-07-01185Brief Communication: Effect of Post-Mating Pro Gestagen Administration on Pregnancy Rate in Crossbred Goats Following an Induced EstrusHéctor Nava-Trujillo0José Chango-Villasmil1Geovanny Finol-Parra2Juan Maldonado-Suárez3Paola Torres-Rodríguez4Freygelinne Carrillo-Fernández5Lidya Gil-Huerta6Universidad del Zulia, Facultad de Ciencias Veterinarias, Escuela de Medicina VeterinariaUniversidad del Zulia, Facultad de Ciencias Veterinarias, Escuela de Medicina VeterinariaCatedra de Fisiología de los Animales Domésticos IUniversidad del Zulia, Facultad de Ciencias Veterinarias, Escuela de Medicina VeterinariaUniversidad del Zulia, Facultad de Ciencias Veterinarias, Escuela de Medicina VeterinariaUniversidad del Zulia, Facultad de Ciencias Veterinarias, Escuela de Medicina VeterinariaUniversidad de Zaragoza, Facultad de Veterinaria, Departamento de Patología Animal Zaragoza Estrus induced with progesterone or progestagens have low fertility compared to natural estrus. However, post-mating progesterone administration has been reported by increases embryo development and pregnancy rate; therefore the aim of this study was to evaluate the effect of post-mating progestagen administration on pregnancy rate after medroxyprogesterone acetate (MAP) induced estrus in crossbred goats. Estrus induction was started at 31.3 Ó 1.7 days post-partum with intra- vaginal sponges impregnated with 60 mg of MAP during 14 days and at time of sponge removal were applied 500 IU of eCG intramuscular. Estrus was detected every 6 hours from 24 hours onwards after sponge withdrawal. Goats were naturally mated with two entry bucks. Five days post-mating, mated goats were randomly assorted into two groups, control group (n=18), without any treatment, and MAP group (n=18), receiving a sponge with 60 mg of MAP for fourteen days. Ultrasonographyc diagnosis of pregnancy was performed at day 50 post-mating. MAP treatment, did not affect the pregnancy rate, with 44.4% (8/18) in MAP group, while in control group was 55.5% (10/18), P>0.05. In conclusion, MAP treatment with a sponge impregnated with 60 mg of MAP between days 5 and 19 post-mating did not affect the pregnancy rate after progestagen induced estrus during the early post-partum period in crossbred tropical goats http://www.produccioncientificaluz.org/index.php/cientifica/article/view/15399 |
| spellingShingle | Héctor Nava-Trujillo José Chango-Villasmil Geovanny Finol-Parra Juan Maldonado-Suárez Paola Torres-Rodríguez Freygelinne Carrillo-Fernández Lidya Gil-Huerta Brief Communication: Effect of Post-Mating Pro Gestagen Administration on Pregnancy Rate in Crossbred Goats Following an Induced Estrus Revista Científica |
| title | Brief Communication: Effect of Post-Mating Pro Gestagen Administration on Pregnancy Rate in Crossbred Goats Following an Induced Estrus |
| title_full | Brief Communication: Effect of Post-Mating Pro Gestagen Administration on Pregnancy Rate in Crossbred Goats Following an Induced Estrus |
| title_fullStr | Brief Communication: Effect of Post-Mating Pro Gestagen Administration on Pregnancy Rate in Crossbred Goats Following an Induced Estrus |
| title_full_unstemmed | Brief Communication: Effect of Post-Mating Pro Gestagen Administration on Pregnancy Rate in Crossbred Goats Following an Induced Estrus |
| title_short | Brief Communication: Effect of Post-Mating Pro Gestagen Administration on Pregnancy Rate in Crossbred Goats Following an Induced Estrus |
| title_sort | brief communication effect of post mating pro gestagen administration on pregnancy rate in crossbred goats following an induced estrus |
| url | http://www.produccioncientificaluz.org/index.php/cientifica/article/view/15399 |
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