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Reproductive responses and progesterone levels of postpartum oestrus synchronization in goats with different body reserves

Author(s): Liliane Silva M. Silva | Davide Rondina | Aírton A. Araújo | Clara Sargentini | Isadora M.T. Lima | Magda C. Rodrigues | Aline L. Souza | Alessandro Giorgetti | Cláudio H.A. Oliveira | Fabiana V. Rodrigues

Journal: Italian Journal of Animal Science
ISSN 1594-4077

Volume: 10;
Issue: 4;
Start page: e42;
Date: 2011;
Original page

Keywords: Goats | Body condition score | Oestrus synchronization | Pregnancy rate | Progesterone

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 postpartum, 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
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