Abstract
Prophylactorium calf housing stage plays an important role in the formation of the body’s defenses. The article presents the results of research aimed at studying the influence of the duration of keeping calves in individual houses on their performance and comfort. It was found that with an increase in the duration of keeping calves in individual houses up to 30 days, the average daily gain in live weight increased by 3.8% in the first three months of life, with an increase in the duration of keeping calves in individual houses up to 45-90 days - by 5.1-6 .7% compared to calves kept in individual houses for 20 days. When transferring calves to group sections at the age of 20-45 days, they relatively quickly adapted to external conditions, actively moved. Thus, the transfer of calves to group housing at the age of 30-45 days makes it possible to create more comfortable conditions that meet their biological needs.
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