publication . Other literature type . Article . 2018

Wpływ numeru laktacji, wydajności i składników mleka na temperaturę zamarzania mleka krów rasy polskiej holsztyńsko-fryzyjskiej

Agnieszka Otwinowska-Mindur; Ewa PTAK;
Open Access English
  • Published: 01 Mar 2018 Journal: Journal of Central European Agriculture, volume 19, issue 1 (eissn: 1332-9049, Copyright policy)
  • Publisher: Faculty of Agriculture, University of Zagreb
The objective of the study was to assess the influence of lactation number, daily milk yield, somatic cell count and milk composition on the freezing point of milk of Polish Holstein-Friesian cows. The data comprised 3,067,343 test day milk samples collected in 2014 from 865,198 first seven lactations of 714,018 Polish Holstein-Friesian cows, made available by the Polish Federation of Cattle Breeders and Dairy Farmers. The cows calved in 20,043 herds in 2013 and 2014. Four lactation classes were created: first, second, third, and fourth to seventh (4 class). Analysis of variance using the MIXED procedure in SAS was applied to milk freezing point (MFP). The foll...
Medical Subject Headings: food and beverages
free text keywords: Holstein-Friesian cows; milk constituents; milk freezing point; milk yield; somatic cell count, dzienna wydajność mleka; krowy rasy polskiej holsztyńskofryzyjskiej; liczba komórek somatycznych; składniki mleka; temperatura zamarzania mleka, Holstein-Friesian cows, milk constituents, milk freezing point, milk yield, Agriculture, S, Agronomy and Crop Science, Animal Science and Zoology, Composition (visual arts), Agronomy, Animal science, Somatic cell count, Dry matter, Biology, Herd, Lactose, chemistry.chemical_compound, chemistry, Urea, Lactation, medicine.anatomical_structure, medicine, Freezing point
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publication . Other literature type . Article . 2018

Wpływ numeru laktacji, wydajności i składników mleka na temperaturę zamarzania mleka krów rasy polskiej holsztyńsko-fryzyjskiej

Agnieszka Otwinowska-Mindur; Ewa PTAK;