DOI:
https://doi.org/10.37547/tajabe/Volume02Issue09-12Keywords:
Artificial insemination breedsAbstract
The article deals with the timing of reproduction, methods of reproduction, productivity, growth and development of offspring, biological, tribal features of meat and wool sheep in Uzbekistan. In order to increase the competitiveness of sheep breeding in Uzbekistan, using the best global gene pool, a new breed group of sheep with meat and wool productivity (Uzbek meat and wool sheep) has been bred. The introduction of meat and wool sheep into the practice of artificial insemination by frozen sheep seeds characteristic of the world sheep gene pool showed that the live weight of lambs taken from them, compared with the live weight of lambs obtained from natural insemination, was higher-0.4 kg (9.3%), at 10-day-0.5 kg (6.8%) and 3-month-old age-0.4 kg (1.3%).
References
Merkuryeva, E. K. (1964). Biometriya v zhivotnovodstve. Kolos. p. 265.
Kalinin, V. V. (1970). Metodika izucheniya kachestva shersti. Moskva, VIZh. p. 26.
Tapilskiy, I. A. & Babadaeva, L. M. (1971). Using Akhangaran Meat-Woolen Rams as Enhancers for Fine-Coarse Sheep. Methods for improving sheep breeds raised in Uzbekistan. Ташкент, p. 8.
Shiller, R., Vakhal, Ya., & Vinsh, Ya. (1971). Matematika v zhivotnovodstve. Moskva. Kolos. p.p. 83-87.
Veniaminov, A. A., Builov, S. V., & Khamitsaev, R. S. (1978). Izuchenie myasnoi produktivnosti ovets: metodicheskie rekomendatsii. Moskva, VIZh, p.43.
Aibazov, M. M., Selionova, M. I., & Mamontova, T. V. (2018). Vosproizvodstva ovets i koz s ispol'zovaniem biotekhnologicheskikh metodov i priemov, p. 12-28.
Ro‘ziboev N. (2019). Biological and productive characteristics of sheep. Scientific and practical basis for the production and processing of environmentally friendly products in the Karakul farms. Materials of the republican scientific and practical conference. Bukhara "Durdona" publishing house. p.p. 160-164.
Ro‘ziboev, N. R. & Shayusupov.B.B. (2019). Productivity characteristics of meat and wool sheep. Journal of Animal Husbandry and Breeding. Tashkent. No:1, p.p. 25-27.
Ruzibaev, N. R. (2019). Nekotorye khozyaistvennye poleznye priznaki myaso-sherstnykh ovets uzbekistana. Sel'skokhozyaistvennyi zhurnal, 12(3).
Turaev, O. S., Shayusupov, B., Urymbetov, A., & Omonov, D. (2017). Sokhranenie genofonda gornogo ekotipa medonosnykh pchel uzbekistana. In Agrarnaya nauka-sel'skomu khozyaistvu, pp. 200-202.
