Abstract
Due to the growing demand for high-quality poultry and eggs in Kazakhstan, the transition to eco-friendly production is more urgent than ever. The use of probiotics in poultry farms can ensure product safety and economic efficiency. This article presents data on the effectiveness of probiotic drugs used in the world and in domestic poultry farming. It is proved that the introduction of probiotics improves the quality of meat, eggs, and poultry carcass, increases immunity and resistance to antibiotics of 1.5-2% concentration, improves feed conversion by 5-7%, and increases the total body weight from 1.1% to 3.9% compared to control groups. The practical value of this research is to study the market of foreign probiotics used in Kazakhstan poultry farms and study their effectiveness.