00471naa#a2200157#i#450# EN\\bibl\102537 20251206044142.6 2588-0209 20240225b2024####ek#y0engy0150####ca RU RESERVES FOR INCREASING THE EFFICIENCY OF DAIRY CATTLE BREEDING IN THE PERM REGION Journal article Moscow Electronic science 2024 0 с. Journal article local Cherdancev P. V. e-integral.ru