The relationship between blood plasma cholesterol and milk production parameters in Czech Pied cows - preliminary results

• Autorzy: Chladek G. , Machal L. , Hibner A. , Nowakowski P.
• Języki publikacji: EN

Abstrakty

EN

Czech Pied dairy cows were observed one day each month for the period of 12 months (12 test days). All the cows were in the first phase of lactation, i.e. up to 100 days after calving. The mean number of lactation was 2.8, the cows were on average 54.8 days after calving and the mean concentration of cholesterol in blood plasma was 3.93 mmolˇdm-3 (149.4 mgˇ10-1dm-3). During the first 100 days of lactation milk yield amounted to 2 581 kg with 3.91% fat, 3.48% protein and 4.85% lactose. Despite high values of correlation obtained within single test day, relations for the entire year between blood plasma cholesterol concentration and milk production parameters did not reveal strong relationships (from –0.013 to +0.259). However, the graphic polynomial expression showed that cholesterol concentration tended to have negative relationship with milk fat or milk lactose content.

Słowa kluczowe

EN

milk fat; cow; Czech Pied cow; blood plasma; cattle; milk protein; animal breeding; dairy cow; milk production; production parameter; cholesterol; dairy cattle

• Wydawca: -
• Czasopismo: Electronic Journal of Polish Agricultural Universities. Series Animal Husbandry
• Rocznik: 2004
• Tom: 07
• Numer: 2
• Opis fizyczny: http://www.ejpau.media.pl/series/volume7/issue2/animal/art-02.html

Twórcy

autor

Chladek G.

• Mendel University of Agriculture and Forestry in Brno, Zemedelska str.1, 613 00 Brno, Czech Republic

autor

Machal L.

autor

Hibner A.

autor

Nowakowski P.

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