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Comparison of ovsynch and progesterone-based protocol for induction of synchronized ovulation and conception rate in subestrous buffalo during low-breeding season | ||
| Iranian Journal of Veterinary Research | ||
| مقاله 11، دوره 15، شماره 4 - شماره پیاپی 49، 2014، صفحه 375-378 اصل مقاله (168.77 K) | ||
| نوع مقاله: Full paper (Original article) | ||
| شناسه دیجیتال (DOI): 10.22099/ijvr.2014.2595 | ||
| نویسندگان | ||
| S. Ghuman* ؛ M. Honparkhe؛ J. Singh | ||
| Department of Veterinary Gynaecology and Obstetrics, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab 141004, India | ||
| چکیده | ||
| The objective of the present study was to compare the impact of ovsynch and progesterone-based ovulation synchronization protocol on ovarian response and conception in buffalo (n=19) exhibiting subestrus during low-breeding season (maximum ambient temperatures and relative humidity ranging from 36-45°C and 30-80%, respectively). Group I buffalo (n=10) were administered ovsynch protocol (d 0 and d 9, 20 μg Buserelin acetate; d 7, 500 μg Cloprostenol sodium; i.m.) followed by AI on days 9 and 10. During the same period, another group of buffalo (n=9) were administered intravaginal progesterone (1.38 g) for 10 days along with the administration (i.m.) of 500 μg Cloprostenol sodium on day 9 and 20 μg Buserelin acetate on day 11, followed by AI on days 12 and 13. With ovsynch, all the buffalo ovulated in response to 1st GnRH and had functional CL (plasma progesterone, 1.61±0.23 ng/ml; corpus luteum, CL, 11.36±0.67 mm) on day 7. Thereafter, subsequent to 2nd GnRH, five buffalo ovulated within 24 h and the remaining five between 24 to 48 h. In comparison, with progesterone-based protocol, a better synchronization of ovulation (P | ||
| کلیدواژهها | ||
| Subestrus؛ Buffalo؛ CIDR؛ Conception rate؛ Ovsynch | ||
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