Reproduction Performance as a Basis for Selecting Female Balinese Cattle in Traditional Breeding in East Halmahera Regency

Abstract

This research aims to know the reproduction performance of Female Balinese Cattle that are bred traditionally to improve their genetic quality. The results of the research show a decrease in the reproductive performance of Bali cattle in this area. Population data indicates a decrease in cattle performance, both in terms of quality and quantity. Hence, appropriate reproduction management is needed. In this case, direct measurement is carried out in the field, in addition to observation and interview with the breeders. The number of cattle involved is 230 cattle and aged more than two years old. Furthermore, their weight was measured using the Djagra formulation. The variables studied include Post Partum Estrus, Post Partum Mating, Calving Interval, and Weight by calculating the mean, standard deviation, and variety coefficient. The results further obtained that on average, the cattle first gave birth at the age of 32.97 months old had a Standard Deviation (SD) value of 1.03, had postpartum estrus of 44.66 days, had an SD value of 1.08, had postpartum mating of 45.13 days had an SD 0,026, and had a Calving Interval of 13.02 days, had an SD 0,65. This indicates that the reproduction performance is not optimal yet. Therefore, this research is beneficial for the related parties to improve the reproduction quality and cattle selection.