Association between Different Somatic Cell Count and the Production, Fat and Protein in Sheep Milk

N. PETROVA, D. NEDELCHEV and D.TODOROVA

Institute of Animal Breeding, Department of Dairy Science, BG-2232 Kostinbrod, Bulgaria

Abstract

PETROVA, N., D. NEDELCHEV and D. TODOROVA, 1999. Association between different somatic cell count and the production, fat and protein in sheep milk. Bulg. J. Agric. Sci., 5: 431-434

A study was carried out to establish the effect of the different somatic cell count (SCC) (less than 400 000; from 400 001 to 700 000; from 700 001 to 1 000 000 and over 1 000 000cells/ml) on the average daily milk production, fat and protein in sheep milk. 57 machine milking sheep from dairy breed (East Friesian x 1/4 East Friesian x Awassi) were investigated at the lactation period (April August,1998).
The SCC from 400 001 to 700 000; from 700 001 to 1 000 000 and over 1 000 000 cells/ml did not change the mean daily milk production at standardised fat (6.5%) and protein (5.5%) comparing with SCC less than 400 000 cells/ml.
The milks with SCC less than 400 000 /150 000 /ml / and from 400 001 to 700 000 cells/ml (490 000/ml) were 75.7% and 9.0% respectively, which means normal health status of sheep and good raw milk quality. The milks with SCC from 700 001 to 1 000 000 / 900 000/ml / and over 1 000 000 cells/ml/ 3500 000/ml were 3.2% and 12.1% respectively for investigated months of the lactation period.

Key words: sheep milk, somatic cell count, milk production, fat, protein