Effect of different protocols of fixed-time artificial insemination on mucus, ovarian size, and pregnancy of mixed-breed cows in the Humid Tropics of Peru
The objective of the research was to evaluate three synchronization protocols for fixed-time artificial insemination (FTAI) in Bos indicus with Bos taurus crossbred cows. Forty-five cows of 5 ± 1.6 years were selected. The Jsynch treatment consisted of the application of an intravaginal device plus...
| Main Authors: | , , , , , |
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| Format: | info:eu-repo/semantics/article |
| Language: | Inglés |
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Hindawi
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/20.500.12955/2175 https://doi.org/10.1155/2023/9942021 |
| _version_ | 1855028842713841664 |
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| author | Diaz Quevedo, Clavel Ramírez García, Alonso Torres Bernal, Lenin Cáceres Coral, Jorge Ampuero Trigoso, Gustavo Saucedo Uriarte, José Américo |
| author_browse | Ampuero Trigoso, Gustavo Cáceres Coral, Jorge Diaz Quevedo, Clavel Ramírez García, Alonso Saucedo Uriarte, José Américo Torres Bernal, Lenin |
| author_facet | Diaz Quevedo, Clavel Ramírez García, Alonso Torres Bernal, Lenin Cáceres Coral, Jorge Ampuero Trigoso, Gustavo Saucedo Uriarte, José Américo |
| author_sort | Diaz Quevedo, Clavel |
| collection | Repositorio INIA |
| description | The objective of the research was to evaluate three synchronization protocols for fixed-time artificial insemination (FTAI) in Bos indicus with Bos taurus crossbred cows. Forty-five cows of 5 ± 1.6 years were selected. The Jsynch treatment consisted of the application of an intravaginal device plus benzoate; on day 8, the device was removed and PGF2α, estradiol cypionate plus eCG was applied, and the FTAI was performed at 48–52 hours after. Conventional treatment consisted of the application of an intravaginal device plus benzoate; on day 8, the device was removed and PGF2α plus eCG was injected, and on day 9, estradiol benzoate was administered, and FTAI was performed at 30 hours. The Ovsynch treatment consisted of the application of GnRH, and on day 8, PGF2α was applied, on day 9, GnRH was applied again, and on day 10, FTAI plus GnRH was applied. The diagnosis of pregnancy was determined by transrectal ultrasound 45 days after the FTAI. The Jsynch (39.1%) and conventional (39.1%) treatment showed higher pregnancy compared to the Ovsynch treatment (21.7%) of pregnancy. The presence of crystalline mucus at the time of the FTAI was significantly associated with pregnancy. The results of this investigation indicate that it is possible to obtain acceptable pregnancy rates with the FTAI in B. indicus with B. taurus crossbred milk-producing cows, and treatments with progesterone-releasing devices plus eCG can improve the reproductive performance of cows. |
| format | info:eu-repo/semantics/article |
| id | INIA2175 |
| institution | Institucional Nacional de Innovación Agraria |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Hindawi |
| publisherStr | Hindawi |
| record_format | dspace |
| spelling | INIA21752023-09-22T02:40:36Z Effect of different protocols of fixed-time artificial insemination on mucus, ovarian size, and pregnancy of mixed-breed cows in the Humid Tropics of Peru Diaz Quevedo, Clavel Ramírez García, Alonso Torres Bernal, Lenin Cáceres Coral, Jorge Ampuero Trigoso, Gustavo Saucedo Uriarte, José Américo Artificial insemination Breed cows Protocols of fixed-time https://purl.org/pe-repo/ocde/ford#4.02.01 Artificial insemination Cattle Inseminación artificial Ganado bovino The objective of the research was to evaluate three synchronization protocols for fixed-time artificial insemination (FTAI) in Bos indicus with Bos taurus crossbred cows. Forty-five cows of 5 ± 1.6 years were selected. The Jsynch treatment consisted of the application of an intravaginal device plus benzoate; on day 8, the device was removed and PGF2α, estradiol cypionate plus eCG was applied, and the FTAI was performed at 48–52 hours after. Conventional treatment consisted of the application of an intravaginal device plus benzoate; on day 8, the device was removed and PGF2α plus eCG was injected, and on day 9, estradiol benzoate was administered, and FTAI was performed at 30 hours. The Ovsynch treatment consisted of the application of GnRH, and on day 8, PGF2α was applied, on day 9, GnRH was applied again, and on day 10, FTAI plus GnRH was applied. The diagnosis of pregnancy was determined by transrectal ultrasound 45 days after the FTAI. The Jsynch (39.1%) and conventional (39.1%) treatment showed higher pregnancy compared to the Ovsynch treatment (21.7%) of pregnancy. The presence of crystalline mucus at the time of the FTAI was significantly associated with pregnancy. The results of this investigation indicate that it is possible to obtain acceptable pregnancy rates with the FTAI in B. indicus with B. taurus crossbred milk-producing cows, and treatments with progesterone-releasing devices plus eCG can improve the reproductive performance of cows. 2023-06-05T17:12:58Z 2023-06-05T17:12:58Z 2023-05-18 info:eu-repo/semantics/article Diaz-Quevedo, C.; Ramírez, A.; Torres, L.; Cáceres, J.; Ampuero, G.; & Saucedo-Uriarte, J. A. (2023). Effect of different protocols of fixed-time artificial insemination on mucus, ovarian size, and pregnancy of mixed-breed cows in the Humid Tropics of Peru. Veterinary Medicine International, 2023. doi: 10.1155/2023/9942021 2042-0048 https://hdl.handle.net/20.500.12955/2175 https://doi.org/10.1155/2023/9942021 eng Veterinary Medicine International info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ application/pdf application/pdf Hindawi EG Instituto Nacional de Innovación Agraria Repositorio Institucional - INIA |
| spellingShingle | Artificial insemination Breed cows Protocols of fixed-time https://purl.org/pe-repo/ocde/ford#4.02.01 Artificial insemination Cattle Inseminación artificial Ganado bovino Diaz Quevedo, Clavel Ramírez García, Alonso Torres Bernal, Lenin Cáceres Coral, Jorge Ampuero Trigoso, Gustavo Saucedo Uriarte, José Américo Effect of different protocols of fixed-time artificial insemination on mucus, ovarian size, and pregnancy of mixed-breed cows in the Humid Tropics of Peru |
| title | Effect of different protocols of fixed-time artificial insemination on mucus, ovarian size, and pregnancy of mixed-breed cows in the Humid Tropics of Peru |
| title_full | Effect of different protocols of fixed-time artificial insemination on mucus, ovarian size, and pregnancy of mixed-breed cows in the Humid Tropics of Peru |
| title_fullStr | Effect of different protocols of fixed-time artificial insemination on mucus, ovarian size, and pregnancy of mixed-breed cows in the Humid Tropics of Peru |
| title_full_unstemmed | Effect of different protocols of fixed-time artificial insemination on mucus, ovarian size, and pregnancy of mixed-breed cows in the Humid Tropics of Peru |
| title_short | Effect of different protocols of fixed-time artificial insemination on mucus, ovarian size, and pregnancy of mixed-breed cows in the Humid Tropics of Peru |
| title_sort | effect of different protocols of fixed time artificial insemination on mucus ovarian size and pregnancy of mixed breed cows in the humid tropics of peru |
| topic | Artificial insemination Breed cows Protocols of fixed-time https://purl.org/pe-repo/ocde/ford#4.02.01 Artificial insemination Cattle Inseminación artificial Ganado bovino |
| url | https://hdl.handle.net/20.500.12955/2175 https://doi.org/10.1155/2023/9942021 |
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