Abstract
<jats:p>In the production experience, the zootechnical and economic effectiveness of the anti-stress drug Hydro Rex Vital in the cultivation of broiler chickens was studied. Studies were carried out at the poultry farm of the broiler meat direction "Nauryz Agro" (Almaty region) on broiler chickens of the Arbor Aykres cross. The experimental livestock was placed in two poultry houses. At the same time, one poultry house served as a control, and the second - experimental options. The number of livestock in each poultry house was 44. 000 heads. The dose of the drug was 300 ml per 1 goal. The bird was kept until 42 days of age on a deep litter. The results of the study showed that the safety of livestock in the control poultry house was 87.9%, and in the experimental one - 94.4% or higher by 6.5 absolute percent. The live weight of the bird at 42 days of age in the control version reached 2458.3 g, and in the experimental version - 2585.3 g. At the same time, the average daily increase in live weight in the experimental version was higher than in the control version by 5.81%. In terms of the slaughter yield of meat, the experimental livestock exceeded the control by 3.6 absolute percent. Feeding the drug made it possible to reduce the cost of 1 kg of meat in the slaughter mass by 10.91%. The introduction of the anti-stress drug "Hydro Rex Vital" in the cultivation of broiler chickens had a positive impact on the profitability of meat production. So in the control version it amounted to 15.36%, and in the experimental version - 27.4% or higher by 14.3 absolute percent. At the same time, the economic effect per initial head amounted to 254.2 tenge.</jats:p>