Influence of antioxidants on the morphological and biochemical composition of blood, antioxidant protection of laying chicks

The research was carried out on the basis of the agricultural production complex “Dur-Dur” (Russian North Ossetia – Alania) on laying hens of the “KOBB-500” cross, of which, at the age of 155 days, when transferred to the parent stock workshop, according to the principle of analogous groups, 4 groups of 100 heads each were formed. The duration of this experiment on laying hens was 10 months. It was found that joint feeding of antioxidants vitamin C at the rate of 500,0 g/t and Erytox at the rate of 125,0 g/t of mixed feed to laying hens of the 4-test group contributed to the improvement of hematopoietic function. Due to the synergism of the action of the tested antioxidants, laying hens of the 4-experimental group were distinguished by better indicators of carbohydrate, protein, lipid and mineral metabolism, which, compared to the control, manifested itself in a significant (P > 0,95) increase in blood serum glucose by 0,53 mmol/l, total protein – by 4,48 g/l, alanine aminotransferase activity – by 5,00 units/l and aspartate aminotransferase – by 5,97 units/l, calcium concentration – by 0,73 mmol/l) and phosphorus – by 0,69 mmol/l with a simultaneous decrease in total lipids – by 0,59 mmol/l (P > 0,95) and cholesterol – by 0,93 mmol/l (P > 0,95). In addition, in laying hens of the 4th experimental group, relative to the control, the body’s antioxidant defense processes were optimized due to an increase in the activity of glutathione peroxidase in the blood by 7,31 % (P > 0,95) and glutathione reductase by 19,96 % (P > 0,95).

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