Fats of Pigs of Different Breeds and Chemical Composition in the Diet of Animals

The studies were carried out on quails, in the feed of which fat of various composition was added. to establish the effect of adding fat from pigs of different breeds and vegetable oil to quail feed on their growth, productivity and characteristics of lipid metabolism. chickens of three groups of 60 individuals each were fed with vegetable oil (control) and fat of two pig breeds sharply differing in the chemical composition of fat - Kemerovo (К) and Pietrain (P) up to 23 weeks of age (3.0 - 3.5% of the mass of the diet). At 8 and 23 weeks of age, 10 individuals from each group underwent biochemical blood tests. The fastest growing quails that received fat of breed K. The level of total cholesterol (TC), during the period of the experiment, of the quails significantly decreased, including those receiving vegetable oil - 1.49 times the fat of breed K - 1, 58 times, the fat of breed P - 1.32 times. The atherogenic index (AI) turned out to be significantly higher (P <0.01) in quails fed breed P fat, containing a high level of TC and rich in PUFA (0.93 conventional units versus 0.69 in birds receiving fat of breed K and 0, 57 - in the control group). The obtained data indicate that fat of breed K is more useful for animal nutrition and may be a priority in human nutrition.