Evaluation of fabricated Mountages on cocoon yield parameters of two different silkworm hybrids of Bombyx mori L.

Abstract

The study was conducted to evaluate the performance of three fabricated self mountages viz., spiral, square and zig-zag mountages on various cocoon parameters in comparison with ribbon, plastic collapsible and bamboo mountages by using two different silkworm races viz., the cross breed (CB) (PM x CSR2) and the double hybrid (DH) (Krishnaraja). The total number of cocoons per mountage was significantly higher in bamboo mountage (677.50) followed by spiral mountage (486.00) for CB and for DH it was highest in bamboo moutage (539.67), followed by zig-zag mountage (282.00) and the interaction effect was found significant for the same. The good cocoon number per mountage was found highest in bamboo mountage (637.61) followed by spiral mountage (459.33) for CB and for DH it was found highest in bamboo mountage (473.67) followed by zig-zag mountage (262.00) and the interaction effect was found significant. The number of defective cocoons per mountage was higher in bamboo mountage (39.83 for CB and 66.00 for DH) followed by square mountage (27.33 for DH) and zig-zag (27.00 for CB) and the interaction effect was found non significant. The correlation study results revealed that, the weight of different types of cocoon showed significantly positive relation with their number.