New biological active additive DBA Fitos for poultry farming development

The article presents the studies results on a new biologically active additive Fitos inclusion in the amount of 0.05-0.2% in addition to an industrial herd laying hens the main diet. In all experimental groups, the main feed nutrients digestibility indices improved: dry matter by 0.5-3.3%, organic matter by 0.7-3.0%, crude protein by 0.2-1.7%, crude fibre by 0.2-1.1%, crude fat by 0.3-1.6%. Also, the mineral metabolism improved, which confirms the substances positive balance, and the laying hens’ assimilation by the body in comparison with the control group is higher: phosphorus by 0.4-2.6%, calcium by 0.2-1.1%. During a biochemical blood test, an increase in the total protein content and its albumin fraction was noted along with an increase in the phosphorus and calcium content. The laying hen’s body vitamin provision improved - the vitamin A content in the laying hens’ blood was 0.2-0.21 mg%, vitamin E - 0.73-0.76%. There was a tendency to improve the edible eggs biological value and quality - the carotenoids and vitamins A, E, B1, B2 and C content in the all-experimental groups eggs were higher than in the control group.