THE REPRODUCTIVE ABILITY OF COWS OF THE TAJIK BLACK-AND-WHITE BREED UNDER THE CONDITIONS OF THE DEHKAN FARM NAMED AFTER B. MAKHSUD" B. GAFUROVSKY DISTRICT

Abstract

The article provides data on the reproductive ability of cows of the Tajik Black-and-White breed in the Dekhkan farm named after A. B. Mah-sud” of B. Gafurov district of Sughd region. It was revealed that the most appropriate season for the reproduction of autumn is winter, and the least appropriate is summer.On average, in the farm in winter from the first insemination to 38.3% of cows, in autumn - winter - 69.4%, in spring - 16.8%, in summer only - 13.8% and in spring - summer - 30, 6% of cows were inseminated. In general, it was found that in the herd of farms, depending on bloodlines, the age of the first calving was from 33.2 to 34.0 months, the continuation of the intercalving period was from 368.2 to 379.6 days, the service period was from 78.6 to 82.2 days, which was the physiological norm in the aisle.