Effect of fortification of senescent tapioca leaves on economic traits of eri silkworm.

摘要

The jaggery solution and soya flour were supplemented with senescent tapioca leaves at different dosages and fed to eri silkworm, Samia cynthia ricini Boisduval during fifth instar and their effect on the economic traits was studied. The important economic parameters such as ERR %, cocoon yield (kg/100 dfls), shell yield (kg/100 dfls) and SR(%) of eri silkworm reared on senescent tapioca leaves were drastically reduced (46.24, 21.214, 1.824 & 8.60) compared to the normal matured leaf (96.77, 74.105, 11.287 & 15.23) Fortification of the senescent leaf with jaggery solution and soya powder exhibited significant improvement in all treatment. However, maximum enhancement (72.94, 44.849, 5.650 & 12.60) was observed when the leaves were supplemented with 10% jaggery solution+soya powder @ 10 g/100 g leaves followed by 10% jaggery solution+soya powder @ 5 g/100 g leaves (70.37, 43.329, 4.641 & 10.71).