Influence of multienzyme drugs in the diets of broiler chickens on their hematological parameters
Authors:   OOO “Biohem Rus”, Russia, Moscow, Moscowsky, Sonichev B. E. , Shapovalov S. O. ,   Scientific and Research Center “Cherkizovo”, Russia, Moscow region, Yakovlevskoe, Nikolaev S. I. ,   Federal State Budgetary Educational Institution of Higher Education «Volgograd State Agrarian University», Russia, Volgograd, Karapetyan A. K. ,   Federal State Budgetary Educational Institution of Higher Education «Volgograd State Agrarian University», Russia, Volgograd, Korneeva O. V. ,   Federal State Budgetary Educational Institution of Higher Education «Volgograd State Agrarian University», Russia, Volgograd, Chekhranova S. V. ,   Federal State Budgetary Educational Institution of Higher Education «Volgograd State Agrarian University», Russia, Volgograd, Shkalenko V. V. ,   Federal State Budgetary Educational Institution of Higher Education «Volgograd State Agrarian University», Russia, Volgograd, Danilenko I. Yu. ,   Federal State Budgetary Educational Institution of Higher Education «Volgograd State Agrarian University», Russia, Volgograd
Published: September 2023

In order to intensify modern poultry farming, close attention is paid to breeds, crosses with high growth potential. The poultry diet should be balanced in terms of metabolic energy and protein due to the inclusion of several ingredients and additives. Specialists of the agro-industrial complex have accumulated a large amount of research on the eff ective use of biologically active drugs in poultry farming. The use of enzyme drugs contributes to an increase in the level of energy nutrition, as well as accelerated growth and development of farm animals and poultry. The purpose of our work was to improve of production traits and hematological parameters in broiler chickens when using diff erent multi enzyme drugs in their diets. A scientifi c and economic experiment was carried out on broiler chickens of the cross Ross 308 under the conditions of a poultry farm of the IP Fitisov G. N., village Ozerny in the Caucasian district of the Krasnodar Territory. The broilers of the 1st control group received wheat and corn compound feed. The following multi enzyme drugs were additionally included in the diet of chickens of the experimental groups: the 2nd experimental group – Natugrain TS 100 g/t of compound feed, the 3rd experimental group – Rovabio Excel AP 50 g/t of compound feed, the 4th experimental group – Ronozim Multigrain 125 g/t of compound feed, the 5th experimental group – Akstra HV 100 g/t of compound feed, 6th experimental group – Akstra HAR 100 g/t of compound feed, 7th experimental group – Hostazim Combi 100 g/t of compound feed, 8th experimental group – Vilzim 20 g/t of compound feed and 9th experimental group – Enzyme Complex 750 g/t compound feed. The conditions of housing and feeding for broiler chickens of the experimental groups were the same and corresponded to the zoo and hygienic requirements for housing and feeding poultry. The use of multi enzyme drugs in compound feed for broiler chickens allowed us to increase live weight by 4,76–13,87 %, reduce expenditures of feed per unit of live weight gain by 4,73–12,43 %. The inclusion of multi enzyme drugs in the formula of compound feed allowed us to improve blood parameters. For example, there was an increase in the number of red blood cells, total protein, calcium, phosphorus and a decrease in the number of white blood cells. Thus, the introduction of multi enzyme drugs into compound feed for broiler chickens had a positive effect on the productive indicators of poultry and also on morphological and biochemical parameters of blood.