USING FGA SPONGE + GnRH FOR IMPROVING FERTILITY IN GOATS DURING THE BREEDING SEASON | ||||
| Egyptian Journal of Sheep and Goats Sciences | ||||
| Article 2, Volume 2, Issue 2, August 2007, Page 1-1 PDF (22.56 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejsgs.2007.27988 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Doaa F. Teleb; T. A.M Ashmawy | ||||
| Sheep & Goat Department, Animal Production Research Institute, Ministry of Agriculture, Giza, Egypt. | ||||
| Abstract | ||||
| ABSTRACT The fertility of 1/2 Damascus-Baladi goats was evaluated when treated with FGA-sponge plus injection of GnRH. Thirty does were divided into 3 equal groups: A, B and C. All groups were synchronized during the breeding season with FGA-sponges for 15 days then single intra-muscular injection of 4 g GnRH on day 13, 14 and 15 from the time of sponge insertion was tried with groups A, B and C, respectively. Estrous behavior was observed on 83.3% of the does in the three treatment groups (A, B and C). All does in group A exhibited estrus (100%) which was higher (P < 0.05) than groups B and C (80% and 70%, respectively). All does in the three treatment groups showed estrus 24 to 36 h after sponge withdrawal (overall mean 30.5 0.9 h); most does exhibited estrus at 28 h (P < 0.05). Percentages of does showed estrus 24, 28, 32 and 36 h after sponge withdrawal were 8, 40, 32 and 20%, respectively. Estrus duration was longer for does in group A (31.93.8 hr) (P < 0.05) than groups B and C (24.63.7 and 23.03.7 hr, respectively). Does in group C had the lowest (P < 0.05) conception rate (50%) compared to groups A and B (70% and 80%, respectively). Does in group B showed the highest conception rate and litter size (80% and 1.6 ± 0.2, respectively), suggesting that treatment with single intramuscular injection of 4 g GnRH 24 h before FGA-sponge removal could give a good result of estrus synchronization, super ovulation and conception. | ||||
|
Statistics Article View: 50 PDF Download: 37 |
||||
