Combined with a various level of exchange energy in derivatives

The level of exchange energy in mixed fodders in most cases is the determining value of feed conversion and, on the whole, the economic efficiency of poultry meat production. The article presents the results of a study conducted on quails of the Pharaoh breed that received mixed fodders with different levels of exchange energy, their impact on zootechnical and economic indicators of cultivation, and on the quality of the meat obtained. When balancing the mixed fodder in the experimental groups, the energy nutritional value of the rations was changed and the content of all nutrients was changed by the corresponding coefficient: in 10 experimental groups, 10 kcal were increased, in 2 and 3 experimental groups, by 10 and 20 kcal. The change in the nutrition of mixed fodders entailed a change in the structure of mixed fodder and its cost: in 1 experimental group, 6.7% more expensive, in 2 and 3 test groups - cheaper by 9.9 and 13.1% compared to the control group. The live weight of the quails at the end of the growing period of the 1 test group is more than the control ones by 0...