N. PETROVA1, P. ZUNEV2 and G. UZUNOV2
1 Institute of Animal Sciences, BG-2232 Kostinbrod, Bulgaria
2 Institute of Upland Stockbreeding and Agriculture, BG-5600 Troyan, Bulgaria
PETROVA, N., P. ZUNEV and G. UZUNOV, 2001. Somatic Cell Count, milk production and properties of goat milk from Bulgarian dairy white breed. Bulg. J. Agric. Sci., 7: 67-72
A study was carried out to establish the influence of different somatic cell count (SCC) (less than 400 000; from 400 001 to 1 000 000 and over 1 000 000cells/ml ) on the average daily milk production, composition and some properties of goat milk. 110 lactating goat from dairy breed (Bulgarian Dairy White) were investigated during the lactation period ( April – July, 1999 ).
There were not find statistically significant differences (P >0.05) in the average daily milk production at 3.2% fat corrected milk (FCM) and at 3.0% protein corrected milk (PCM) between the number of SCC less than 400 000/ml (275 000/ml), from 400 001 to 1 000 000/ml (652 000 /ml) and over 1 000 000/ml (3 150 000/ml).
The number of SCC from 400 001 to 1 000 000/ml (652 000/ml) and over 1 000 000/ml (3 150 000/ml) in milk did not changed lactose content ( content varied from 4.34 to 4.18%) and freezing point (varied from -0.551 to -0.548 0C) compared with SCC less than 400 000/ml (275 000/ml).
The milks with SCC less than 400 000 (275 000/ml) and from 400 001 to 1 000 000 cells/ml (652 000/ml) were 19.5% and 31.3% respectively, which means normal health status of goat and good raw milk quality. The milks with SCC over 1 000 000 cells/ml (3 150 000/ml) were – 49.2% during the investigated lactation months.