Aspects concerning the correlation between some biological and technological traits in mulberry silkworm (Bombyx mori L.)

The identification of the mulberry silkworm breeds, which within optimal rearing conditions led to maximum performance with a minimum feed consumption, was the aim of our study. We recorded he coefficient of consumption and digestibility reported to the biological indices of the larvae. These traits were compared to the biological indices of both crude and dry cocoon. The results analyzes show no positive correlation between consumption and biological indices of the larvae (length, weight) and between the traits of the crude cocoon (weight of the crude cocoon, incartment, and silk percent) and indices of the dry cocoon (weight of the dry cocoon, wire length, wire weight, and fibroin content), except one breed (AC) which recorded the biggest values in majority of traits, less the coefficient of consumption and silk content.