DEVELOPMENT OF A METHOD FOR IMPROVING TECHNOLOGICAL INDICATORS OF TURBO SILKWORK BREEDS CONDUCTING SATURATING CROSSING

It is advisable to carry out backcross crossings with the participation of donor breeds when breeding thin-silky silkworm breeds. The saturation of genotypes of large-knocked breeds over 4 generations Line 48, Line 51 with genes of improvingbreeds Chinese 108, Japanese 66 led to an improvement in almost all technological properties of large-knocked breeds and increased their metric numbers. The fineness of the thread after the first crossing with the Chinese 108 breed at Line 48 and Line 51 was 3300 and 2817 m / g, after the second crossing - 3773 and 4071 m / g, respectively. With the saturation of Lines 48 and Lines 51 with the genes of the Japanese 66 breed, the fineness of the thread after the first crossing was 2849 m / g and 3717 m / g, after the second crossing - 4207 m / g and 4032 m / g.

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