Reproductive responses and progesterone levels of postpartum oestrus synchronization in goats with different body reserves
Thirty adult goats were classified at parturition into two body condition score (BCS) groups: BCI (n=16) with a score of 2.7 and BCII (n=14) with a score of 2.0. On the fiftieth day <em>postpartum</em>, oestrus was synchronized by CIDR for 5 days. Upon CIDR removal (Day 0), they received...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2011-10-01
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| Series: | Italian Journal of Animal Science |
| Subjects: | |
| Online Access: | http://www.aspajournal.it/index.php/ijas/article/view/2222 |
| _version_ | 1819265221904039936 |
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| author | Fabiana V. Rodrigues Cláudio H.A. Oliveira Alessandro Giorgetti Clara Sargentini Isadora M.T. Lima Magda C. Rodrigues Aline L. Souza Davide Rondina Aírton A. Araújo Liliane Silva M. Silva |
| author_facet | Fabiana V. Rodrigues Cláudio H.A. Oliveira Alessandro Giorgetti Clara Sargentini Isadora M.T. Lima Magda C. Rodrigues Aline L. Souza Davide Rondina Aírton A. Araújo Liliane Silva M. Silva |
| author_sort | Fabiana V. Rodrigues |
| collection | DOAJ |
| description | Thirty adult goats were classified at parturition into two body condition score (BCS) groups: BCI (n=16) with a score of 2.7 and BCII (n=14) with a score of 2.0. On the fiftieth day <em>postpartum</em>, oestrus was synchronized by CIDR for 5 days. Upon CIDR removal (Day 0), they received 1 mL of PGF2α IM and mated for 72 hours. Kids were kept with does and weaned at 40 days of age. Blood samples were taken at 0, 1, 4, 8 and 21 days after CIDR removal for progesterone assay. The BCI group showed a greater weight loss compared to the BCII group, and BCS before synchronization was 1.9±0.08 and 1.6±0.07 for the BCI and BCII groups, respectively (P<0.05). The weaning weight of BCI kids was greater when compared to BCII (P<0.001). After CIDR removal, all females were marked and mated. Pregnancy rate was higher in BCI goats (87% <em>vs</em> 36%; P<0.05), as well as prolificacy (1.65 <em>vs</em> 1.25; P<0.05) and twinning rate (0.62 <em>vs</em> 0.25; P<0.05). Progesterone concentration was higher in pregnant does in BCI. A positive relationship was found between progesterone level at CIDR removal and BCS at parturition (0.57; P<0.01), also between progesterone level at 21 days after CIDR removal and BCS at parturition (0.47; P<0.05), or BCS before synchronization (0.51; P<0.05). We conclude that oestrus response to postpartum CIDR synchronization appeared to be slightly dependent on BCS. However, goats with low BCS at oestrus synchronization exhibited a reduction in pregnancy rate. |
| first_indexed | 2024-12-23T20:41:56Z |
| format | Article |
| id | doaj.art-141f9bc107a6484fa3a567656bd08b9e |
| institution | Directory Open Access Journal |
| issn | 1594-4077 1828-051X |
| language | English |
| last_indexed | 2024-12-23T20:41:56Z |
| publishDate | 2011-10-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Italian Journal of Animal Science |
| spelling | doaj.art-141f9bc107a6484fa3a567656bd08b9e2022-12-21T17:31:54ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2011-10-01104e42e4210.4081/ijas.2011.e42Reproductive responses and progesterone levels of postpartum oestrus synchronization in goats with different body reservesFabiana V. RodriguesCláudio H.A. OliveiraAlessandro GiorgettiClara SargentiniIsadora M.T. LimaMagda C. RodriguesAline L. SouzaDavide RondinaAírton A. AraújoLiliane Silva M. SilvaThirty adult goats were classified at parturition into two body condition score (BCS) groups: BCI (n=16) with a score of 2.7 and BCII (n=14) with a score of 2.0. On the fiftieth day <em>postpartum</em>, oestrus was synchronized by CIDR for 5 days. Upon CIDR removal (Day 0), they received 1 mL of PGF2α IM and mated for 72 hours. Kids were kept with does and weaned at 40 days of age. Blood samples were taken at 0, 1, 4, 8 and 21 days after CIDR removal for progesterone assay. The BCI group showed a greater weight loss compared to the BCII group, and BCS before synchronization was 1.9±0.08 and 1.6±0.07 for the BCI and BCII groups, respectively (P<0.05). The weaning weight of BCI kids was greater when compared to BCII (P<0.001). After CIDR removal, all females were marked and mated. Pregnancy rate was higher in BCI goats (87% <em>vs</em> 36%; P<0.05), as well as prolificacy (1.65 <em>vs</em> 1.25; P<0.05) and twinning rate (0.62 <em>vs</em> 0.25; P<0.05). Progesterone concentration was higher in pregnant does in BCI. A positive relationship was found between progesterone level at CIDR removal and BCS at parturition (0.57; P<0.01), also between progesterone level at 21 days after CIDR removal and BCS at parturition (0.47; P<0.05), or BCS before synchronization (0.51; P<0.05). We conclude that oestrus response to postpartum CIDR synchronization appeared to be slightly dependent on BCS. However, goats with low BCS at oestrus synchronization exhibited a reduction in pregnancy rate.http://www.aspajournal.it/index.php/ijas/article/view/2222Goats, Body condition Score, Oestrus synchronization, Pregnancy rate, Progesterone |
| spellingShingle | Fabiana V. Rodrigues Cláudio H.A. Oliveira Alessandro Giorgetti Clara Sargentini Isadora M.T. Lima Magda C. Rodrigues Aline L. Souza Davide Rondina Aírton A. Araújo Liliane Silva M. Silva Reproductive responses and progesterone levels of postpartum oestrus synchronization in goats with different body reserves Italian Journal of Animal Science Goats, Body condition Score, Oestrus synchronization, Pregnancy rate, Progesterone |
| title | Reproductive responses and progesterone levels of postpartum oestrus synchronization in goats with different body reserves |
| title_full | Reproductive responses and progesterone levels of postpartum oestrus synchronization in goats with different body reserves |
| title_fullStr | Reproductive responses and progesterone levels of postpartum oestrus synchronization in goats with different body reserves |
| title_full_unstemmed | Reproductive responses and progesterone levels of postpartum oestrus synchronization in goats with different body reserves |
| title_short | Reproductive responses and progesterone levels of postpartum oestrus synchronization in goats with different body reserves |
| title_sort | reproductive responses and progesterone levels of postpartum oestrus synchronization in goats with different body reserves |
| topic | Goats, Body condition Score, Oestrus synchronization, Pregnancy rate, Progesterone |
| url | http://www.aspajournal.it/index.php/ijas/article/view/2222 |
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