Аңдатпа
According to the Kazakhstan national animal health monitoring system, the mortality rate of young farm animals ranges from 4.2% to 7.8%, with gastrointestinal diseases being the main registered condition. This study aimed to create a locally produced probiotic, formulated using a consortium of lactic acid bacteria, to enhance the immune function of young farm animals. The study utilized a newly developed probiotic designed to prevent and treat gastrointestinal diseases in young cattle. Modern molecular biological, zootechnical, biochemical, hematological, and immunological methods and techniques were used in the research. The potential advantages of the developed probiotic preparation Lactobact-ARZ are demonstrated, with optimization of its dosage in the diet to improve growth and development, increase live weight, and enhance immunity in young cattle. Calves that received probiotic-enriched milk demonstrated improved growth, development, feed utilization efficiency, survival rate, and hematological profile.