Izvorni znanstveni članak
The correlation of milking performances and the somatic cell count in milk of simmental cows
Pero Miljić
Ivan Knežević
Matija Domaćinović
Sažetak
Milking performances have become a very important characteristic of milk-cows. Today’s modern milking equipment enables following the entire milking process and the insight into each part of it. By studying the milk flow and standardizing the milk udder, as well as by using the new measuring techniques could be adjusted to machine milking and larger number of cows consequently fewer udder problems.
The conducted research results on Simmental cows showed a good chemical and physical milk composition (4.24 % fat, 3.68 % proteins and 9.22 % non-fat dry substance). The milk quantity per milking was 8.03 kg, per average milk flow of 1.86 kg/min and the milking duration of 4.27 minutes. Although the average somatic cell count in milk was rather low (246.000/ml) even 22.7 % of cows had in milk samples more than 400.000 somatic cells/ml. From that, 90 % of animals had a short peak phase ( 2min) and a long descending phase ( 3 min). Introducing modern milking equipment and new selective aims into the cattle breeding program, milking characteristics, their economic significance and correlation to the health of the udder would be studied in more detail.
Ključne riječi
milking performances; somatic cell; health udder; Simmental cows
Hrčak ID:
2129
URI
Datum izdavanja:
3.5.2005.
Posjeta: 1.652 *