Influence of BHB concentration in blood on fatty acid content in the milk of high-yielding cows

• Autorzy: Nogalski Z. , Pogorzelska-Przybylek P. , Sobczuk-Szul M. , Mochol M. , Nogalska A.
• Języki publikacji: EN

Abstrakty

EN

The objective of this study was to determine the effect of increased concentration of BHBA in the blood in high-yielding cows on fatty acid concentrations in milk fat in first month of lactation. The milk fatty acid profiles of cows classified as healthy (n = 33) or as cows with increased concentration of BHBA (iBHBA) (n = 9) based on a blood plasma β-hydroxybutyrate threshold concentration of 1.2 mmol/l were compared. The increased concentration of BHBA decreased milk yield (by 1176 kg on average in 305-days of lactation) had a negative effect on the milk fatty acid profile and the health benefits delivered by fatty acids. Increased concentration of BHBA contributed to a decrease in the conjugated linoleic acid (CLA) content of milk fat, a less desirable n-6/n-3 ratio, and an increase in the concentrations of unsaturated fatty acids, in particular oleic acid.

• Wydawca: -
• Czasopismo: Medycyna Weterynaryjna
• Rocznik: 2015
• Tom: 71
• Numer: 08
• Opis fizyczny: p.493-496,fig.,ref.

Twórcy

autor

Nogalski Z.

• Department of Cattle Breeding and Milk Evaluation, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland

autor

Pogorzelska-Przybylek P.

• Department of Cattle Breeding and Milk Evaluation, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland

autor

Sobczuk-Szul M.

• Department of Cattle Breeding and Milk Evaluation, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland

autor

Mochol M.

• Department of Cattle Breeding and Milk Evaluation, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland

autor

Nogalska A.

• Department of Agricultural Chemistry and Environmental Protection, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland

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