Fertility in dairy cows treated in the early luteal phase with a reused progesterone-releasing intravaginal device
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
2022
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| author | Graciela Meneses Arias |
| author_facet | Graciela Meneses Arias |
| contents | Fertility in dairy cows treated in the early luteal phase with a reused progesterone-releasing intravaginal device Graciela Meneses Arias Fernando Rivera Acuña Hugo Horacio Montaldo Martha Ramírez López Joel Hernández Cerón Multidisciplinaria (Ciencias Naturales y Exactas) fertility dairy cows Progesterone releasing device intravaginal progesterone In this study, we tested whether early luteal phase treatment with a previously used progesterone-releasing intravaginal device (DIV) increased conception rate (CR) in dairy cows. Two experiments were performed; in the first, progesterone concentrations were determined in cows treated with a reused DIV. Seven cows received PGF2α and a reused DIV was inserted for seven days. Blood samples were collected daily for progesterone determination. Progesterone increased from 0.42 ± 0.17 ng/mL (mean ± standard deviation) at DIV insertion to 1.99 ± 0.52 ng/mL at 24 h and 2.11 ± 0.40 ng/mL at 48 h after; during the treatment period, progesterone showed an average concentration of 1.4 ± 0.55 ng/mL. In the second experiment, 383 cows were randomly divided on day 4 post-insemination, into two treatment groups: DIV (n = 188), received a reused DIV, which was removed on day 14; Control (n = 195), did not receive DIV. Progesterone concentrations were determined in seven cows from each group. The CR was not affected by treatment DIV (33.5 %) vs. Control (37.4 %); P > 0.05. No interaction was observed between treatment and service number, parity, the type of postpartum (normal or pathological), body condition, or days in milk (P > 0.05). Progesterone concentrations were similar between treatments (P > 0.05). We conclude that the insertion of a reused DIV at early diestrus did not increase serum progesterone concentrations or conception rate in dairy cows. 2022 artículo científico 0301-5092 https://www.redalyc.org/articulo.oa?id=42375500022 https://www.redalyc.org/journal/423/42375500022/ https://www.redalyc.org/journal/423/42375500022/html/ https://www.redalyc.org/journal/423/42375500022/42375500022.epub https://www.redalyc.org/journal/423/42375500022/movil https://doi.org/10.22201/fmvz.24486760eL2022.1056 en http://www.redalyc.org/revista.oa?id=423 Veterinaria México application/pdf Universidad Nacional Autónoma de México Veterinaria México (México) Vol.9 |
| format | Artículo científico |
| id | redalyc_42375500022 |
| institution | Redalyc |
| language | en |
| publishDate | 2022 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Fertility in dairy cows treated in the early luteal phase with a reused progesterone-releasing intravaginal device Graciela Meneses Arias Multidisciplinaria (Ciencias Naturales y Exactas) fertility dairy cows Progesterone releasing device intravaginal progesterone Fertility in dairy cows treated in the early luteal phase with a reused progesterone-releasing intravaginal device Graciela Meneses Arias Fernando Rivera Acuña Hugo Horacio Montaldo Martha Ramírez López Joel Hernández Cerón Multidisciplinaria (Ciencias Naturales y Exactas) fertility dairy cows Progesterone releasing device intravaginal progesterone In this study, we tested whether early luteal phase treatment with a previously used progesterone-releasing intravaginal device (DIV) increased conception rate (CR) in dairy cows. Two experiments were performed; in the first, progesterone concentrations were determined in cows treated with a reused DIV. Seven cows received PGF2α and a reused DIV was inserted for seven days. Blood samples were collected daily for progesterone determination. Progesterone increased from 0.42 ± 0.17 ng/mL (mean ± standard deviation) at DIV insertion to 1.99 ± 0.52 ng/mL at 24 h and 2.11 ± 0.40 ng/mL at 48 h after; during the treatment period, progesterone showed an average concentration of 1.4 ± 0.55 ng/mL. In the second experiment, 383 cows were randomly divided on day 4 post-insemination, into two treatment groups: DIV (n = 188), received a reused DIV, which was removed on day 14; Control (n = 195), did not receive DIV. Progesterone concentrations were determined in seven cows from each group. The CR was not affected by treatment DIV (33.5 %) vs. Control (37.4 %); P > 0.05. No interaction was observed between treatment and service number, parity, the type of postpartum (normal or pathological), body condition, or days in milk (P > 0.05). Progesterone concentrations were similar between treatments (P > 0.05). We conclude that the insertion of a reused DIV at early diestrus did not increase serum progesterone concentrations or conception rate in dairy cows. 2022 artículo científico 0301-5092 https://www.redalyc.org/articulo.oa?id=42375500022 https://www.redalyc.org/journal/423/42375500022/ https://www.redalyc.org/journal/423/42375500022/html/ https://www.redalyc.org/journal/423/42375500022/42375500022.epub https://www.redalyc.org/journal/423/42375500022/movil https://doi.org/10.22201/fmvz.24486760eL2022.1056 en http://www.redalyc.org/revista.oa?id=423 Veterinaria México application/pdf Universidad Nacional Autónoma de México Veterinaria México (México) Vol.9 |
| title | Fertility in dairy cows treated in the early luteal phase with a reused progesterone-releasing intravaginal device |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) fertility dairy cows Progesterone releasing device intravaginal progesterone |
| url | https://www.redalyc.org/articulo.oa?id=42375500022 https://www.redalyc.org/journal/423/42375500022/ https://www.redalyc.org/journal/423/42375500022/html/ https://www.redalyc.org/journal/423/42375500022/42375500022.epub https://www.redalyc.org/journal/423/42375500022/movil https://doi.org/10.22201/fmvz.24486760eL2022.1056 |