DefinePK

Abstract

ABSTRACT


This study evaluates the correlations between the management
practices, Somatic Cell Counts SCC and milk yield in dairy farms of
Thuringia, Germany. Milk performance data were collected from the national
milk-recording database VIT, Verden. Determination of the somatic cells
was done at the milk laboratory of the TVL-Thuringia by means of Fossomatic
device Fossomatic-5000, Fa. Foss. Electric., Denmark.
Lactation records of 10742 dairy cows were included. Traits studied were
test-day milk yield and SCC log with respect to health status of the
udder. Results indicated that test-day milk yield as well as SCC was higher
in multiparous cows and lower in primiparous cows. Somatic Cell Counts
SCC was lower early in the lactation 4.85 and increased thereafter
to reach 4.96 in the late stage of lactation. Daily milk yield reached
the peak in the early stage of lactation 28.41 kg and was lower in the
late stage of lactation 19.52 kg. The study also found that test-day
milk yield and SCC log were significantly p0.001 affected by season
of the year, housing and milking systems. Hygienic measures practiced
in the studied farms were found to be affecting the mean test-day milk
yield and SCC log significantly.

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