The article describes the presence of various physiological changes in the body of bees before migration in the family of bees in the local
population, and on the basis of which migration can be prevented.
There is no difference in performance in systems with plus and minus selection. In the F-1 and F-3 systems where viability plus selection
was performed, cocoon weight values were 1.84 g and 1.85 g, and shell weights were 432 mg and 422 mg, respectively. In practice, the minus selection does not differ from those of the conducted F-2 and F-4 systems-1.72 g and 1.85 g, respectively; 394 mg and 420 mg. Clearly, the choice of viability leads to the accumulation of recessive hemispheric and subletal genes in the homozygous state in the system. As a result, some organisms die at different stages of development. But some of them survive. Probably on the one hand, because harmful genes are less accumulated, and on the other hand, because there are enough positive genes to compensate for the
effects of harmful genes, i.e., the GCC is formed. Had this process not taken place, no doubt the system would have perished as a result of negative selection over several generations. It follows that GCC does not occur in systems with high viability. The predominance of
positive genes over negative genes is achieved without them. In addition, the process of mutation is accelerated under the influence of negative selection.
Thus, not only the reserve but also the newly emerging genes remainthe source for the blocks of both categoriesThis increases gene diversity
The results of a morphometric analysis of honey bees in Uzbekistan are presented. The different nature of the seasonal variability of
the exterior signs of honey bees in different zones of the Tashkent region, the influence on their manifestation of external environmental conditions was studied
Results of comparative assessment of honey bees of different breeds bred in Tashkent region are presented. Studies were carried out on
the apiary of the farm "Kodirkhuja ota" of the Kibrai district of Tashkent region.
Farida Kuldasheva, T Ahmedov
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