Estimation of carbohydrates in selected silkworm races/ breeds of Bombyx mori L. using two mulberry varieties

Abstract

The present research work were conducted to estimation of carbohydrate content in haemolymph of Multivoltine (Pure Mysore), bivoltine (CSR2) and multi-bi hybrid (PMXCSR2) of the mulberry silkworm, Bombyx mori L. were selected to estimate carbohydrate content in the haemolymph of 5th instar larvae (day one to day six). M5 and V1 mulberry varieties cultivated under irrigated condition was used to feed the larvae twice and four times a day. The quantification of carbohydrates was done by using spectrometer and was expressed in mg/ml of sample. The results clearly showed an increasing trend with the age of the larvae and also in batches fed four times than twice a day for both the samples. V1 contributed to higher accumulation of carbohydrates than those fed with M5. Haemolymph exhibited higher activity while, among the breeds carbohydrate content was higher in CSR2, followed by PMXCSR2 and PM.