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The aim of the study was to analyze somatic cell count (SCC) In milk of high yielding cows in dependence on various factors: month of lactation and cow age (subsequent lactation), calendar month, day milk yield as well as milk yield for 305 days of lactation. The research was conducted on the randomly selected group of 70 Polish Holstein Friesian cows coming from high yielding dairy herd. The data...
The aim of the study was to analyze the influence of cows’ maintenance system, herd size and milk production scale on raw milk chemical composition and quality. The study included 30 milk producers who delivered the raw material to the district cooperative dairy plant located in Central Poland. The purchased milk was characterized by good quality parameters qualifying it to the extra class and had...
The paper compares the chemical composition of milk from Polish Holstein-Friesian Black-And-White (PHF HO) and Montbéliarde (MO) high-yielding cows. The research was based on the results of 36,796 test-day milkings: 25,617 from PHF HO and 11,179 from MO. The analysis included the influence of the successive lactation and its phase, the daily milk yield, the cytological quality of milk, and the season...
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