BIOCHEMICAL PARAMETERS OF BLOOD PLASMA AND FEED CONVERSION RATE DEPENDING ON THE DIET IN THE MODEL ORGANISM

The aim of the present study was to determine the effect of diet enriched with 2.5% fish oil (polyunsaturated fatty acids source) resp. 2.5% palm oil (saturated fatty acids source) during the feeding experiment to the overall health status of the model organism (Sus scrofa f. domestica). Biochemical indicators of blood (alanineaminotransferase, aspartateaminotransferase, alkaline phosphatase, urea, total cholesterol, HDL-fraction and LDL-fraction) and feed conversion rate were analyzed to determine the overall health status of the experimental animal. Diet enriched with 2.5% fish oil significantly decreased (P<0.05) aspartateaminotransferase and alkaline phosphatase, but there was no change (P>0.05) in alanineaminotransferase. Diet enriched with 2.5% palm oil significantly decreased (P<0.05) aspartateaminotransferase, alkaline phosphatase and also alanineaminotransferase. Both diets decreased (P<0.05) level of total cholesterol, although we expected a reduction only in the diet enriched with fish oil and increasing in the diet enriched with palm oil. The level of HDL-fraction was increased (P<0.05) in the diet enriched with palm oil, but not in the diet enriched with fish oil (P>0.05). The level of LDL-fraction was decreased (P<0.05) in both diets, which was expected in the diet enriched with fish oil, but not with palm oil. The level of urea was decreased (P<0.05) in both diets. The effect of diet enriched with 2.5% fish resp. palm oil to the feed consumption, body weight gains and feed conversion rate was tested - there were not significant differences (P>0.05) between two experimental diets. These are only preliminary results obtained during the experiment, which are so far unclear and ambiguous, therefore further research is needed in this area.