بهبود كيفي تركيب اسيدهاي چرب شير گاو و از طريق خوراندن روغن ماهي غني از اسيدهاي چرب امگا - 3

The long-chain omega-3 polyunsaturated fatty acids, especially eicosapentaenoic (EPA, 20:5) and docosahexaenoic acids (DHA, 22:6) are critical in prenatal formation and function of brain cells and the retina of the eye. Marines, especially cold water fishes are good sources of both EPA and DHA. Since milk is a natural compound that plays an importance role in human and animal nutrition, the present study was undertaken to examine the effects of fish oil on the quality improvement of cow milk fatty acids by feeding various amounts (100, 300 and 500 ml) of fish oil to dairy cattle. The finding of the present study showed that administration of fish oil improves the quality of fatty acids in milk so that the concentration of unsaturated fatty acids increases following fish oil supplementation, while the concentration of saturated fatty acids decreases, especially after consuming 300 ml regimen. Also, the concentration of alpha linolenic acid (an omega-3 fatty acid) increased in milk. Therefore, it is recommended to supplement bovine milk with fish oil to improve the quality of its fatty acids.