Meat productivity of bulls on fattening with the use of the domestic antioxidant "Bisphenol-5"

To carry out scientific and economic experience, one-year-old black-and-white bulls of the first experimental group were fed 50 g of bran enriched with the studied drug at a dose of 0,25 % daily per 1 head. The animals of the second experimental group were given a basic diet containing an antioxidant, with the inclusion of 100 g of bran per 1 head in the feed mixture. Individuals of the third experimental group were added to the main diet of bran enriched with an antioxidant, at the rate of 150 g of premix per head. Moreover, in the experimental groups, part of the compound feed was replaced with an appropriate amount of bran containing a fat-soluble antioxidant. The farm used a hay-silage type of fattening of young cattle. The control slaughter carried out at the age of 16 months showed that the slaughter yield in the control, first, second and third experimental groups was 55,1; 55,5; 56,8 and 56,3 %, respectively. Chemical analysis of the longest back muscle proved that the meat of animals of the second experimental group, which were fed a fat-soluble antioxidant, contained more protein and fat than in the control. The caloric content of beef of the second experimental group was 2,0 % higher compared to the control group. The tasting committee noted that the feeding of the fat-soluble antioxidant «Bisphenol-5» had a positive effect on the taste, aroma, tenderness and juiciness of cooked meat from the longest back muscle of fattening bulls.