Interdisciplinary Conference of Young Scholars in Social Sciences (USA)

Fertility Characteristics of Cows Belonging to Different Selections

Gubutaev Bekmurod Khushmurad ogli

Termez Institute of Agrotechnologies and Innovative Development, Associate Professor of the Department of Animal Engineering, Veterinary Medicine and Sericulture

Karimov Sherali Allaberdievich

Termez Institute of Agrotechnologies and Innovative Development, Associate Professor of the Department of Animal Engineering, Veterinary Medicine and Sericulture

Kurbanova Shakhnoza Ergashevna

Senior Lecturer at Samarkand State University of Veterinary Medicine, Animal Husbandry and Biotechnology, Doctor of Philosophy (PhD) in Agricultural Sciences

Keywords: Cattle, cows, insemination age, insemination index, insemination, service period

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Abstract

This article provides information on the indicators of replenishment of the herd of Holstein cattle of various breeding works. The bodies of the German selection had a significant advantage over the cattle of the Polish and Belarusian selection in terms of the age of the first calving, live weight, duration of the service period and the fertilization index.