Studies on the influence of keeping system and season on the serum content of vitamin A and E in cows

• Autorzy: Orowicz W. , Zakrzewska H. , Baranow-Baranowski S.
• Języki publikacji: EN

Abstrakty

EN

The study was carried out on three groups of cows kept in the systems: I - indoor and pasture, II - indoor with a run, III - indoor. The experiment lasted one year and involved summer and winter feeding. Contents of vitamin A and E in blood serum were determined. The highest serum levels of vitamin E were determined in animals kept in both indoor + pasture and indoor + run systems. The system of keeping did not affect significantly the concentration of vitamin A in the examined period. Statistically significant differences occured in some months but generally in all the systems, its content was at a similar level.

Słowa kluczowe

EN

vitamin E; vitamin A; cow; keeping system; season; serum content

• Wydawca: -
• Czasopismo: Polish Journal of Veterinary Sciences
• Rocznik: 2000
• Tom: 03
• Numer: 1
• Opis fizyczny: p.47-52,fig.

Twórcy

autor

Orowicz W.

• Szczecin University, Piastow Street 40B, 70-065 Szczecin, Poland

autor

Zakrzewska H.

autor

Baranow-Baranowski S.