BENEFICIAL EFFECTS OF BLUE GREEN ALGAE SPIRULINA AND YEAST SACCHAROMYCES CEREVISIAE ON COCOON QUANTITATIVE PARAMETERS OF SILKWORM BOMBYX MORI LK. MASTHAN, T. RAJ KUMAR AND C.V. NARASIMHA MURTHYAbstract The purpose of this study is to investigate the impact of application of probiotics on mulberry leaf and using it for silkworm rearing. Nutritional study on silkworm is an essential prerequisite for its proper commercial exploitation. Nutrition of silkworm is sole factor which almost individually augment quality and quantity of silk (Laskar and Datta, 2000). The dietary supplements like protein, vitamins, lipids etc. evincing their effect on various metabolic activities of silkworm (Horie, 1980) and their deficiency will lead to silkworm disease. Hence in the present investigation an attempt is made to study the impact fortification of mulberry leaf with certain food probiotic microorganisms like Spirulina and Saccharomyces cerevisiae on cocoon quantitative parameters like Cocoon weight, shell weight, pupal weight, shell percentage and silk filament length of silk worm Bombyx mori. Data is collected and subjected to the statistical analysis. The results indicate that there is a better growth rate and silk production when probiotics were used. Between two probiotics used in the present investigation blue green algae Spirulina is considered to be better than the Saccharomyces cerevisiae.
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