Somatic Cell Count (SCC) pada Sapi Perah dan Hubungannya dengan Produksi Susu, Lemak dan Protein di Balai Pembibitan Ternal Unggul (BPTU) Sapi Perah, Baturraden, Purwokerto =Somatic Cell Count (SCC) of Dairy Cattle and

The study was conducted to investigate the correlations between Somatic Cell Count (SCC) and milk production, fat and protein of dairy cattle, at Balai Pembibitan Ternak Unggul (BPTU) Sapi Perah, Baturraden, Porwokerto. If there were found correlation between SCC and milk production, fat and protein, then used in inderect selection. Friesian Holstein dairy cattle at lactating I, II, III, and lactating IV were used in this study. Data of milk production, percent of fat, percent of protein and SCC were obtained from six cows of each lactation except 5 cows for lactation IV. The milk production were obtained from the 3,4, and 5 month of lactation without mastitis sympton, which were proved by California Mastitis Test (CMT). Milk production per lactation was estimated by the method of proportion. Percent of fat, protein, and SCC were calculated from 3 times sampled. The SCC data were transformed SCS = log 2 (SCC/100)+3. The results indicated that the average of the SCC was 26,133.33 cell/ml and 431,200 cell/ml of milk. Ninety five percent of the samples indicated that they met the SCC requirement for good milk comsumption. The highest production was found in lactation TV and the lowest in lactation I. The fat content decreased as number of lactation progressed. The highest protein percent was found in lactation IH, and the lowest in lactation I. The animal age influenced significantly the milk composition. The correlations between SCC and milk production of lactating I, II, III and TV were positive (0.3,0.4,0.25,0.12), but on the protein content was negative for lactating I, III and TV, and positive for lactating IE (-0.67, -0.46, -0.0005,0.32). Coefficient correlations between SCC and fat content was negative for lactating I, II, and positive for lactating III and TV (-0.18, -0.52, 0.22, 0.17). The correlation between milk production and protein and fat were negative for lactating I, II, III and IV. Since there were a positive correlation between SCC and milk ... Keywords: dairy cattle-somatic cell count-milk production-fat-protein-orrelatio