Changes in embryonic protein profile and economic characters of Bombyx mori (Lepidoptera:Bombycidae) following UV irradiation.

Eggs of B. mori were irradiated with UV (254.4 nm wavelength) for different durations. Increase in the time of exposure to UV decreased the percentage hatchability of the eggs, cocoon and pupal weights. The shell weight remained unaltered proving the stability of silk gland DNA. Irradiation of eggs also delayed the degradation/utilization of the embryonic proteins, viz. vitellin (heavy and light subunits), egg-specific protein and 30K protein.