Biological response of turkeys fed on mixtures with differentiated fat oxidation levels
2000
Koncicki, A. (Uniwersytet Warminsko-Mazurski, Olsztyn (Poland). Katedra Chorob Ptakow) | Krasnodebska-Depta, A. | Zdunczyk, Z. | Jankowski, J. | Szarek, J.
The research was carried out on 3-day-old turkeys BUT-9 divided into 4 groups over a period of 16 weeks. Birds in each group were fed of mixtures containing oxidised fat with differentiated peroxide values of 5, 50, 100 and 150 mEq O2/kg respectively. Fat addition in the succeeding 4-week feeding period was 2, 3, 4 and 5 percent respectively. Oxidised fat in the fed mixtures clearly reduced the bird's growth rate, vitamin E content in the liver and plasma as well as ALT and LDH activity in the liver. Mixtures containing fat with highest oxidation degree caused an increase in LDH and a decrease CK activity in the breast muscles. In plasma, there was a reduction in LDH activity while that of CK increased. The degree of fat oxidation did not clearly affect the liveliness and feed consumption, glucose, triglyceride, cholesterol, vitamin A, calcium and phosphorus levels in the blood plasma as well as ALT, AST and AP activity, and on haematological examination results
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