A comparative study on productive, reproductive and ovarian features of repeat breeder and normal cyclic cows in the selected areas of BangladeshMir Md. Iqbal Hasan, Md. Maruf Hassan, Rupam Chandra Mohanta, Md. Abu Haris Miah, Mohammad Harun-Or- Rashid, Nasrin Sultana Juyena.
Objective: The research was accomplished to appraise the productive and reproductive physiology of repeat breeder (RB) cows and compare to normal cyclic (NC) cows.
Methodology: A total of 366 RB cows were surveyed from 1859 crossbred and indigenous cows using a questionnaire upon positive sampling of RB syndrome in dairy farms throughout the selected areas of Bangladesh. Out of 366 RB cows, 170 were randomly selected, which were at day 0 of estrous cycle. To compare the physiological characteristics, 170 NC cows at day 0 of estrous cycle were also selected randomly.
Results: Results showed that age, BCS, and parity were higher in RB cows than NC cows. Survey on productive characteristics illustrated that milk production (P
Estrous cycle; Follicular diameter; Repeat breeder; VER