Pregnancy Rate Of Bunaji Cows In A Fixed Time Ai Synchronization Protocol Using Ovatide

This study was aimed to access the reproductive performance of bunaji cows in an ovsynch protocol involving Ovatide. Bunaji cows (n=16) aged 4 – 6 years and weighing between 250 – 350kg were used. Selected cows with average body condition scores (BCS) of 2.5 – 3.5 using 0 – 5 scale from the most emaciated to the fattest. Cows were randomly assigned to 1 or 2 treatment groups for synchronization of ovulation. Treatment group 1 comprising Bunaji (n=8) received 50μg of GnRH (Cystorellin) and 25 mg of PGF 2α . While, treatment group 2 comprising Bunaji (n=8) received 50μg of Ovatide and 25 mg of PGF 2α . All cows from both treatment groups were inseminated at 16 hours after each second GnRH or Ovatide injections. Cows that showed mucus discharge from the vagina on the day of AI were recorded as well as those that had patent cervix. Cervical dilation was measured by taking note of the cows that had mid cervix insemination due to non‐passage of the AI gun through the cervix. Transrectal palpation was conducted twice at a month interval to select cycling cows within 5 to 12 days of the estrous cycle before initiating Ovsynch protocol. It was repeated on day 45 post – AI to confirm pregnancies in animals. Results showed that the rate of mucus discharge from the vagina and Cervical dilation for Ovatide were 37.5% and 87.5%; and GnRH (Cystorelin) 75% and 87.5% (P > 0.05) and Pregnancy Rates were 0% and 12.5% respectively. There were no significant differences between the two groups. It was concluded that treatment of bunaji cows with 50μg Ovatide in Ovsynh protocol has heat induction potentials zero pregnancy rates. It was recommended that further studies be carried out using graded doses of 50μg, 100μg and 150μg of Ovatide in a fixed time AI synchronization protocol in bunaji cows. This abstract is from the Experimental Biology 2018 Meeting. There is no full text article associated with this abstract published in The FASEB Journal .