Vol. 12, Issue 1 (2023)

Author(s):
Cherian Jenifer Merry, S Manokaran, K Senthilkumar, P Balachandran, M Selvaraju, M Palanisamy, D Gopikrishnan and A Ganesan

Abstract:
The experiment was conducted to study the pattern of induced estrus during the superovulatory protocol in Bargur cows. Total of 16 Bargur cows were selected and synchronized using 500µg of PGF₂α intramuscularly at 11 days apart. The Bargur donor cows were observed for estrus signs 24 hours after the second PGF₂α injection. The estrus response, onset of estrus, signs of estrus, duration of estrus and intensity of estrus were observed and recorded. The onset, duration and intensity of estrus was 45.94±1.35 hours, 24.38±0.57 hours, 68.75% (intense), 25% (intermediate) and 6.25% (weak), respectively in Bargur donor cows.