|
Effect of controlled internal drug release deviceand progesterone sponge on short-term estrus synchronizationin Zandi ewes during the breeding season |
|---|---|
| รหัสดีโอไอ | |
| Creator | 1. Behzad Roshani 2. Reza Vajdi Hokmabad 3. Naser Mohebalipour |
| Title | Effect of controlled internal drug release deviceand progesterone sponge on short-term estrus synchronizationin Zandi ewes during the breeding season |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2018 |
| Journal Title | Songklanakarin Journal of Science and Technology |
| Journal Vol. | 40 |
| Journal No. | 4 |
| Page no. | 904 |
| Keyword | CIDR, intravaginal sponge, sheep, estrus synchronization, breeding season |
| URL Website | http://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | The aim of this study was to investigate the effect of a controlled internal drug release (CIDR) device and progesteronesponge on the short-term estrus synchronization in Zandi ewes during the breeding season. Sixty Zandi ewes were selected anddivided into 3 groups at the beginning of breeding season. The first group was the control group. The second group receivedinsertion of a CIDR device and 1.5 ml of gonadotropin-releasing hormone on day 0, 1.5 ml of natural prostaglandin on day 6, and2.5 mg of pregnant mare serum gonadotropin with removal of the CIDR device on day 7. In a third group, the same treatmentwas used, but a medroxyprogesterone acetate-impregnated sponge was inserted instead of the CIDR device. All of the ewesmated naturally. There were significant differences in estrus, fertility, and pregnancy rates between the second group and thecontrol group (P<0.05). The CIDR device is recommended due to relative improvement of some reproductive parameters. |
