The effect of a diet fortified with polyunsaturated fatty acids on the level of selected elements in the myocardium of growing pigs

The experiment was carried out on 3 groups of fatteners (Large White x Peri sh Landrace), 7 per group, housed in individual cages for 102 days from a b ody weight of 25 to 102 kg. They were fed complete feed containing 4% of th e following types of fats: lard, linseed oil, fish by-product oil. After sl aughter, samples of the myocardium were collected from the pigs and the con tent of elements was determined spectrometrically. It was found that linsee d oil added to the mixture significantly (P <0.05) increased Fe and Cr cont ents, whereas fish by-product oil increased (P <0.05) the Mg and Cr level i n dry matter of heart tissue in pigs.