Abstract
At the global level, special attention is paid to the care of the mulberry silkworm Bombyx mori L. in different climatic conditions, the adaptation of monovoltine breeds and hybrids to different ecological regions, and the production of high-quality raw silk that meets the requirements of the international standard 2A, 3A, 4A. being directed. Today, creating a new generation of mulberry silkworm breeds and hybrids and improving the technological properties of cocoons and silk raw materials obtained from them, determining the effects of various environmental factors and objectively evaluating the physical and mechanical properties of cocoons are considered as urgent problems on a global scale. Currently, some of the mulberry silkworm seeds, which are not enough for farms in our country, are imported from the People's Republic of China. The economic value of these imported elite and industrial hybrids, namely silkworm egg viability, worm viability, length of larval larval period, biological factors such as mulberry silkworm, cocoon and shell weight, cocoon yield, silkiness and cocoon productivity such as fertile and non-fertile cocoons. It is scientifically based on the extent to which the natural climatic conditions of the regions of Uzbekistan affect productivity indicators such as percentage, dry weight of cocoons, percentage of defective cocoons.
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