Reproductive performance of Bali cattle fol1owing artificial insemination in Bali

Abstract

Bali cattle, domesticated of Banteng (Bos javanicus). is one of the imponant beef breeds in Indonesia. Reproductive performance data of Bali cattle from 5 176 services and 2940 cows were collected from Jan 1998 to Sep 2003 during an Al program in Bali. Non-return rate (65%), service per conception (1.7), and corrception rate (58.3) were comparable with other reports, both on Bali cahle and other breeds. However, calving interval (41 1±64 d) and days open (1221±64 d) were longer than other breeds. In addition, there was a difference in conception rate between year and bull and number of services per month related to production site (A1 centre).