The Effect of Dietary Fish Oil on the Lipid and Fatty Acid Composition and Oxidative Stability of Goose Leg Muscles / Wpływ oleju rybnego na profil lipidowy i skład kwasów tłuszczowych oraz stabilność oksydacyjną mięśni nóg gęsi

The aim of this study was to evaluate the effect of fish oil added to feed mixtures for geese on their growth, lipid profile and antioxidant status of leg muscles. Ninety-six Arzamas geese were randomly divided into two groups and fed from 30 to 60 days of life standard mixtures containing soybean oil (control) or fish oil at 5%. The addition of fish oil to the feed mixtures for geese increased the content of EPA and DHA, and decreased the ratio of n-6 to n-3 fatty acids in fat of breast muscles compared to birds fed the control mixture. It also resulted in a considerable increase in the content of phospholipids and decreased the content of glycerol, free fatty acids as well as triacylglycerols and esterified cholesterol. The type of fat source had no effect on the content of lipid peroxidation products and the activity of antioxidant enzymes.