The invention relates to administering a composition comprising an omega-3 polyunsaturated fatty acid to an animal in a first stage and administering a composition comprising an omega-3 polyunsaturated fatty acid to an animal in at least one subsequent stage. The composition administered to the animal in at least one subsequent stage is different from the composition administered to the animal in the first stage, with respect to the method of fortifying animal meat with omega-3 polyunsaturated fatty acids comprising Having an omega-3 polyunsaturated fatty acid content of 75% or less. [Selection figure] None本発明は、オメガ－３多価不飽和脂肪酸を含む組成物を第１段階の動物に投与すること及びオメガ－３多価不飽和脂肪酸を含む組成物を少なくとも１つの後続の段階における動物に投与することを含むオメガ－３多価不飽和脂肪酸による動物の肉の強化方法に関し、少なくとも１つの後続の段階における動物に投与される組成物が、第１段階の動物に投与される組成物に対して、７５％以下のオメガ－３多価不飽和脂肪酸含有量を有する。【選択図】なし
