Monitoring of Reproductive Capacity of Dairy Cattle in Eurasia: A Comparative Study in Kazakhstan and the Republic of Tuva
Bissembayev A.T. Mongush S.D. Bekenov D.M. Kulmakova N.I. Bondarenko O.V. Kombu A.M.-O. Baimukanov D.A.
2025Science Publications
OnLine Journal of Biological Sciences
2025#25Issue 4901 - 910 pp.
This study investigates the reproductive capacity of dairy cattle populations in the Republic of Kazakhstan and the Republic of Tuva (Russian Federation). Experimental work was conducted at four study sites: in Kazakhstan, Abdrakhmanov Bolat Dauletbekovich SP (Akmola region) and Alimzhanov TS farm (Almaty region); in the Republic of Tuva, Oyun SP of Kyzyl district (forest-steppe population) and SPK Breeding Farm BaiDag of Erzin district (dry-steppe population). Results revealed that actual herd reproduction parameters in Kazakhstan deviated from standard indicators: service period exceeded norms by 5-65 days, insemination index ranged 0.8-1.3 doses (standard: 1 dose), and age at first insemination varied by 1-4 months from recommended values. In the Republic of Tuva, service period duration averaged 90.7 days for forest-steppe populations and 97.3 days for dry-steppe populations. Reproductive capacity coefficients for local Tuvan cattle were 0.99 (forest-steppe) and 0.93 (dry-steppe). Gynecological monitoring identified ovarian dysfunction frequencies of 3.5-6.9% (hypofunction) and 2.9-6.7% (follicular cysts). Biochemical blood analyses revealed all parameters within physiological normal ranges, indicating adequate nutritional status. These findings provide baseline reproductive performance data for local dairy cattle breeds in Central Asian environments, informing breeding strategies and herd management practices for indigenous cattle populations adapted to regional climatic conditions.
Breed Conservation , Dairy Cattle , Indigenous Cattle , Kazakhstan , Local Breeds , Ovarian Dysfunction , Reproductive Performance , Republic of Tuva , Service Period
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Department of Animal Husbandry, Veterinary Medicine, and Assessment of Feed and Milk Quality, Scientific and Production Center for Animal Husbandry and Veterinary Medicine, Astana, Kazakhstan
Department of Technology of Production and Processing of Agricultural Products, Tuva State University, Republic of Tyva, Kyzyl, Russian Federation
Department of Veterinary Medicine, Institute of Animal Science and Biology, Russian State Agrarian University-Moscow Timiryazev Agricultural Academy, Moscow, Russian Federation
Laboratory of Breeding and Biotechnology, Institute of Plant Biology and Biotechnology, Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan, Almaty, Kazakhstan
Department of Animal Husbandry
Department of Technology of Production and Processing of Agricultural Products
Department of Veterinary Medicine
Laboratory of Breeding and Biotechnology
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