REPRODUCTIVE PERFORMANCE OF ANESTROUS NON-DESCRIPTIVE COWS TREATED WITH CIDR AND PGF2α

The present clinical study was carried out to evaluate the reproductive performance in non descriptive cows using (CIDR) and PGF2α under field condition. The cows were divided into two groups comprising of 12 cows in each group. Group I animals were (n = 12) served as control and were inseminated during natural estrus and in group II cows (n = 12) estrous cycle was induced by inserting CIDR for 9 days and PGF2α was given intramuscularly 24 hrs prior to CIDR removal. Fixed time artificial insemination was carried out at 48 and 72 hrs after CIDR removal. The overall conception rate obtained was 41.66 % in group I animals and 91.66 % in group II animals treated with CIDR and PGF2α. KEY WORDS: CIDR, PGF2α, Anestrous, Non descriptive cows, Reproductive Performance Inadequate nutrition and uterine infections are two important causes of anestrous in cows. The feeding program in herds with estrous detection problems due to anestrous should be examined carefully to ensure that adequate levels of nutrients, especially energy, are being provided. Cows suffered with dystocia and retained placenta often lead to uterine infections, which can delay the beginning of ovarian activity and subsequent estrus. For anestrous females, the primary requirement for a successful synchronization system is to induce ovulation and initiate the first postpartum estrous cycle. The objective of the present study was to evaluate the reproductive performance of anestrous non descriptive cows in field conditions following CIDR and Prostaglandin PGF2α administration and timed insemination. Twenty four apparently healthy true anestrous non descriptive cows were selected for this study. Th