Indicators of antioxidant protection of bulls organism and weight gain at feeding different chromium forms

M. M. Khomyn

The influence of different forms of chromium, namely, chloride of chromium (II group), metionate chromium (III group) and nicotinate chromium (IV group) on the antioxidant status of the dairy bulls organism during their growth and on their weight gain was investigated. It was found that by feeding chromium nicotinate during the second month there was an increase of retinol concentration, ?-tocopherol and antioxidant enzymes, especially SOD (P < 0,01) but the concentration of GPL (P < 0,05) and MDA in the blood decreased as compared to the control group. ?-tocopherol content in the blood of animals of the fourth group in this period rose against tendencies to lower its level in the blood of the third group of animals. During the third month of feeding chloride, metionate and nicotinate chromium the increasing activity of SOD, GP, catalase was noticed and the concentration of retinol in the blood, of bulls of the second third and fourth groups, and of ?-tocopherol - only in the animals of the third and fourth groups. Feeding chloride, metionate and nicotinate chromium in milk period of growing contributed to the increasing of intensity of body weight accordingly by 4,1, 6,3 and 6,6 % as compared with this index in the control group.

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