Somatic cell counts in goat milk and their relation to milk composition and properties
1996
Gajdusek, S. | Jelinek, P. | Hampl, A. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic))
Milk composition and properties were studied in 20 goats of the White Polled Short-wooled breed in the first lactation from the 6th to 255th day in nine time intervals. Goat milk samples were examined for somatic cell counts, basic milk components (fat, crude protein, lactose, ash), N-matters (true proteins, casein, whey proteins, nonprotein nitrogen, urea, ammonia), minerals (Ca, Mg, total P, inorg. P, Na, K, Cl), physical and chemical properties (titratable acidity, pH, buffering capacity, electrical conductivity) and rennetability and alcoholic stability as processing properties. SC counts varied from 78,000 to 4,520,000 SC/ml milk. A decrease in potassium content and in a K/Na ratio was recorded for SC counts higher than 500000/ml goat milk. With SC counts higher than 7500000 lactose content in decreasing, the ratio chlorides/lactose-chlorine-sugar number is increasing, whey protein content is rising and there are significant variations in casein, sodium and chloride contents. With SC counts higher than 1000000 there is a statistically significant decrease in goat milk titratable acidity and alcohol number and significant variations in milk pH value and buffering capacity.
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