TUT IPAK KURTINING TURL GENOTIPI LICHINCHA DAVRINI KISARISH TIZIMI BOR.

Abstract

Mulberry silkworms have been domesticated by people over 5,000 years and have been used for human needs. This insect is considered a convenient object for scientific research in terms of its feeding, breeding and reproduction. Conscious selection of the best individuals of the silkworm by man leads to variability of their signs and properties. The mulberry silkworm belongs to the group of metamorphosed insects and goes through four developmental stages: egg, larva, pupa and moth. The larvae of wild worms found in the countries such as Japan, China and India, where silkworm breeding is developed, the leaf-eating period lasts 45-60 days, while monovoltin and bivoltin breeds begin to cocoon in 30-35 days. In our republic, there are only breeds belonging to the monovolt group, which are used during four seasons of feeding, during late feeding, the eggs of silkworm are revived by means of artificial acid treatment. This article closely reviews the length of the larval stage of the mulberry silkworm in two different selection lines. According to the findings from the selection "Lines 500" and "Lines 501", the total worm cycle lasted 23,7–24, 2 days, which was found to be superior to comparable breeds. The creation of mulberry silkworm breeds with high silkiness and early maturing stage can be economically beneficial.