Effects of magnetization on carbohydrates in various tissues of silkworm, Bombyx mori L. were investigated. Fat bodies of magnetized larvae showed gradual gain in carbohydrates while haemolymph and silk gland showed decrease in it. Gain in fat body carbohydrates was gradual after exposure of larvae to magnetic field of 1000 Gauss to 3500 Gauss, beyond which (4000 Gauss) the carbohydrate contents of fat body decreased. Reductions in haemolymph and silk gland carbohydrates were more pronounced

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... n larvae were exposed to low magnetic field (1000 Gauss to 3500 Gauss) than higher magnetic field (5000 Gauss). The results are discussed in relation to silk gland and silk production.