Abstract:
Reproduction traits of Bali cattle such as service per conception, calving rate and calving interval and fertility of semen are as successful parameter on breeding program (natural or artifcial). Data of Bali cattle reproduction like breeding season, birth season, services per conception, calving interval, and days open were used to study reproduction ability of the dam. Result of research showed that service per conception was 1.23±0.31; 1.02±0.09; 1.2 ±0.27; calving interval was 12.53±0.83; 12.53±0.83; 13.33 ±1.86; days open was 106±25.01; 130.24±38.31; 110±32.33 for the herd from Karang Asem, Tabanan and Pulukan, respectively. Breeding season and birth season were happened along the year. Breeding season was on July to December and it reached the peak on September. Birth of calves was on April to October and it reached the peak on July.
