Influence of chitosan complex on zootechnical indicators of growing broiler chickens in industrial poultry farm conditions

The purpose of the research was a scientific and practical background of the effectiveness of using a domestic feed additive based on chitosan (chitosan complex “KH - 1”) when raising broiler chickens on floors for 38-40 days under conditions of increased stocking density (23.5 birds/m2) at the industrial poultry farm LLC "POZTS Svezhenka". The production feed program used in all groups was the same in terms of the set of ingredients; the difference between the control and experimental groups (poultry houses) was that the chitosan complex “KH” was introduced into the diets of broilers raised in three experimental poultry houses (total population - 117,906 birds). -1" at the rate of 70 g per 1 ton of feed. Three control poultry houses contained 118,000 chickens at the beginning of the experiment. As a result of the research, it was established that the production of poultry meat in slaughter weight in three control poultry houses amounted to 193,950 kg compared to three experimental poultry houses - 197,957 kg. In these poultry houses where chitosan complex was used in feed for broilers, 4007 kg (2.02%) more meat was obtained than in the control. This was achieved because the safety of broilers in all experimental poultry houses at the end of rearing was 93.53%, and in the control houses - 91.83%. The meat yield from 1 m² of floor in experimental poultry houses when raising broilers under conditions of increased stocking density (23.5 birds/m²) with a slaughter period of 38-40 days was 1.2 - 3.6% higher than in control poultry houses. It should be noted that feed costs are lower per 1 kg of live weight gain in broilers kept in the experimental poultry houses compared to the control ones. The European broiler rearing efficiency index in the experimental poultry houses was 9 to 17 units higher than in the control ones. The chitosan complex had a positive effect on the zootechnical parameters of poultry rearing under the conditions of increased stocking density at an industrial poultry farm. So, the chitosan complex is a valuable feed additive for broilers.