Abstract
The purpose of this study was to investigate the conception rate and frequency of single and multiple births in estrus synchronized NARI Suwarna ewes maintained under two different systems of feeding strategies. Fifty adult ewes of same age were randomly divided into two groups as per the type of feeding management. Ewes in both the groups were subjected for estrus synchronization protocol for 12 days by using intravaginal progesterone sponges with PGF2α and PMSG. Ewes were inseminated with freshly collected & diluted semen and pregnancy was diagnosed with the aid of ultrasonograpy 30 days of post AI. The mean conception rate recorded was 83.3 & 55% for scientific feeding and pastures grazing respectively. Similarly, single & multiple births recorded were 20% & 80% and 45.45% & 54.55% for scientific feeding and pasture grazing respectively. In conclusion, significantly higher (83.3%) conception rate and multiple births (80%) were observed in ewes maintained under scientific system of feeding than pasture grazed ewes.
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