POSTPARTUM ANESTRUS IN DAIRY-COWS - A REVIEW

In modern high-yielding daily herds fertility is of major economic imp ortance. In order to gain maximum profit, calving intervals should not exceed 365 days. The achievement of a 365-day calving interval requir es an early resumption of ovarian activity, an excellent oestrus detec tion, and a high first-service conception rate. Especially the inabili ty to detect oestrus and to mate the cows by 60 to 80 days after calvi ng is a common problem among dairy farmers nowadays. In this article a review is given about the occurrence, causes, treatment, and preventi on of post-partum anoestrus in dairy cows.