Influence of biologically active drugs on meat productivity and meat quality of broiler chickens

In current condition, the issue of providing poultry with mineral elements in particular selenium is relevant. Scientists’ research has established the role of selenium in the processes of carbohydrate and lipid metabolism, stabilization of membrane functions, protein synthesis on ribosomes and macroergic compounds in mitochondria. The manifestation of signs of microelement deficiency differs in poultry of different ages, it depends on the conditions of housing and feeding. The use of probiotic drugs in poultry farming practice is an effective way to increase the body’s resistance to negative environmental influences, which helps to increase the survival rate of livestock and productive traits of poultry. The eff ect of preparations based on probiotic microorganisms depends on the diets used, individual components of which can reduce their eff ectiveness. The purpose of the work was to study the eff ect of biologically active drugs on meat productivity and meat quality of broiler chickens. The research was conducted to study the ways of increasing the meat productivity and meat quality of broiler chickens cross Ross-308 by using the selenium-containing drug DAFS-25k in the diets both separately and in combination with the probiotic additive Bacell-M. The influence of the studied additives on the digestibility and use of feed nutrients, and blood biochemical parameters was theoretically and practically confirmed. The optimal rate of additive introduction into broiler chicken diets was established and the economic efficiency of poultry meat production was determined. In order to improve the completeness of broiler chicken feeding, increase their productivity and meat quality, it is necessary to introduce the selenium-containing drug DAFS-25k into the diet together with the probiotic additive Bacell-M at the rate of 0.9 mg and 2.0 g per 1 kg of compound feed, respectively, up to 40 days of age.