Influence of Cocoon Magnetization on the Glycogen Content in Fat Body and Haemolymph of Mulberry Silkworm Pupae

摘要

The significance of magnetic field on Bombyx mori cocoon has been proved to be of biotechnologiol significance in the sericulture industry. Variation in the static magnetic strength significantly influencedM glycogen content in the fat body and haemolymph of Bombyx mori pupae. The experiments were conducted in the year 2007. The cocoons were magnetized for 24, 48, 72 and 96 h separately with the magnet of eta strength just after 3rd day of spinning. The glycogen content increased with the increasingexposure duration of cocoon from 24 to 96 h in 0.1, 0.2, 0.3 and 0.4 tesla magnetic field. The maximum level of glycogen contefl in the fat body (20.362±0.052 ug/mg) and haemolymph (13.260±0.039 ug/mg) was noticed in cased 0.3. tesla-72 h exposed cocoons. The minimum glycogen content in fat body (14.125±0.025 ug/mg) and haemolymph (9.667±0.015 ug/mg) was recorded in case of 0.4 tesla - 96 h exposed cocoons. The bio-magnetie interactions, if applied tactfully, may be useful for boosting up the sericulture industry as well as the economy] of silkworm rearing.