The Reproductive Performance of Dairy Cattle in Smallholder Farmers

The reproductive performance of dairy cattle can be determined by the level of reproductive efficiency. This activity aims to obtain information on the reproductive performance of dairy cattle in 5 dairy cooperation unit (KUD) locations (Bogor, Cisarua, Cianjur, Garut and Pangalengan), conducted in January 2018 - May 2019. Data was collected through direct observation in the field and information from farmers. The parameters observed were: Body Weight (BW), Body Condition Score (BCS), parity, Calving Interval (CI), Sevice per Conception (S/C), Age of first calving (AFC). Data were analyzed with the GLM model from SAS (2004). The mean BW of cattle showed a difference between KUD (P 0.05), the highest was in Pangalengan (502.36 ± 5.96 kg) and the lowest was in Cisarua (415.19 ± 9.21 kg). The total BCS of KUD was 2.76 ± 0.30. The mean overall age of KUD was 56.20 ± 25.71 months, varying based on KUD location (P 0.05). The mean parity of all KUDs was 2.87 ± 1.65. The overall AFC average for KUD was 26.80 ± 2.27 months, differently based on the lowest KUD in Bogor and the highest in Cisarua. The mean CI in this study was still quite good, around 13.14 ± 1.73 months. The highest CI was in Bogor (13.53±0.17 months), while the lowest was in Garut (12.04 months). The overall average S/C of KUD was 1.25 ± 0.30. The S/C in KUD Cianjur was higher than in the other 4 KUDs. The reproductive performance of cows in overall KUD farmers is still in good condition. The existence of differences in the reproductive performance of cows between locations may be differences in mating management