Studies on estrus response and fertility in estrus synchronized Nari Suvarna EWES with different systems of feeding
Author(s):
BM Ravindranath, MS Rudraswamy, GS Naveenkumar and Chandrashekhar Murthy
Abstract:
The purpose of this experiment was to study the estrus response and fertility in synchronized NARI Suvarna ewes maintained under two systems of feeding. Fifty adult NARI Suvarna ewes of similar age were divided randomly into two groups. Group I (n=25) were fed with balanced sheep feed and group II (n=25) and were allowed for grazing only in the fields. They were not fed any balanced feed throughout the experiment. Ewes in both the groups were subjected for estrus synchronization protocol for 12 days by using intravaginal progesterone sponges with PGF2α and PMSG. They were inseminated with freshly collected & diluted semen and pregnancy. The pregnancy was diagnosed with the aid of ultrasonography 30 days after AI. It was observed that the estrus response was 96 and 80% in ewes fed with balanced feed and pasture grazing respectively. Similarly, time taken for onset of estrus was 32.09±1.25 hrs & 33.12±1.45 hrs and mean duration of estrus recorded was 36.7±1.11 hrs & 34.77±1.25 hrs in ewes fed with balanced feeding and pasture grazing respectively. The conception rate recorded in ewes fed with balanced feed (83.3%) was significantly higher than the conception rate recorded in ewes maintained under pasture grazing (55%).
How to cite this article:
BM Ravindranath, MS Rudraswamy, GS Naveenkumar, Chandrashekhar Murthy. Studies on estrus response and fertility in estrus synchronized Nari Suvarna EWES with different systems of feeding. Pharma Innovation 2023;12(2):3564-3567.