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RELATIONSHIPS BETWEEN CYTOLOGICAL QUALITY AND COMPOSITION OF MILK AND THE EFFECT OF SOME ENVIRONMENTAL FACTORS ON THE FREQUENCY OF RECURRENT MASTITIS IN COWS
milk mastitis somatic cells
2010/12/6
Data on somatic cell counts (SCC) in test-day milkings of 63621 cows from the active population of the Pomerania and Kujawy regions were analysed for the years 1998–2002. A negative correlation was fo...
EFFECT OF SOME ENVIRONMENTAL FACTORS ON WEANING PERFORMANCE OF HUNGARIAN GREY CATTLE POPULATIONS
Hungarian Grey cattle environmental effects genetic parameters heritability
2010/11/30
Weaning performance of 2857 purebred calves (660 male and 2197 female) born from 1498 cows mated with 78 sire were analised in seven farms. Genetic- and environmental variance and heritability, breedi...