Efisiensi Reproduksi Sapi Perah Akseptor IB di Wilayah Kerja KPSP Setia Kawan, Nongkojajar, Pasuruan

The purpose of this research is to know the reproductive efficiency artificial of dairy cattle acceptor in KPSP Setia Kawan, Nongkojajar, Pasuruan by value Service per Conception (S/C), Days Open (DO), Calving Interval (CI), Conception Rate (CR), Calving Rate (CvR), dan Fertility Status (FS) in the period 2014 th until as early as 2015 th. Method in this research is surve method’s which aims to get primary and secondary data. Secondary data were obtained from the records of reproduction in KPSP Setia Kawan and primary data derived from direct recording to the breeder with methods purposive random sampling. The sample data used is 10% of the cattle population 816 sample. Data were analyzed descriptive that average and standard deviation. The result of the research indicate that the value of S / C = 2.1 ± 1.16 times, DO = 94.73 ± 33.85 days and CI = 376.72 ± 33.88 days, CR = 37.5%, 55.6% and CVR = FS = 48.2%. Results of this study can be concluded that dairy cows in the working area KPSP Setia Kawan, Nongkojajar, Pasuruan indicate reproductive efficiency is quite good, although not optimal. Expected reference data optimization widened in the next period