Critical Biochemical Analysis in Different Body Tissues in Three Commercial Silkworm (Bombyx mori L.) Races

Three silkworm races of Bombyx mori L viz., Pure Mysore (PM), Bivoltine (CSR 2) and Crossbreed (PMxCSR 2) were analyzed for their biochemical compositions. Quantitative assay of proteins, reducing sugars and nucleic acids were carried out in different body tissues of silkworm. Data obtained are statistically analyzed with oneway ANOVA at p<0.05 significance level and presented in the results. Significantly higher (at p<0.05) proteins were recorded in bivoltine silkworms compared to crossbreeds and multivoltine silkworms. Higher reducing sugar was recorded in midgut and silk glands of bivoltines followed by crossbreed and pure Mysore silkworms. DNA and RNA concentrations were recorded comparatively higher in haemolymph and midgut of bivoltine silkworms. Results revealed that, bivoltine silkworms are comparatively superior in all the biochemical parameters examined and these studies can be expediently adopt for screening and characterization of different silkworm breeds.