Browsing by Author "Nillo, Dominador S."

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    Nutrient supplementation using amino acid for growth and yield of silkworm, Bombyx mori L.
    (Journal of Biodiversity and Environmental Sciences (JBES), 2021) Madrid, Elizabeth H.; Marzan, Helen B.; Nillo, Dominador S.; Badua, Annellene M.
    In sericulture, mulberry leaves are the main food source for silkworms. Over the years, researches were conducted on supplementation of essential nutrients to improve mulberry leaf quality in order to meet the nutrient requirements for silkworm growth and development. Hence, this study determined the effect of amino acid (AA) supplementation on the growth and yield of silkworm (Bombyx mori L) and on the occurrence of diseases. A Philippine silkworm hybrid, DMMMSU 346 was used as testing organism and fed with mulberry leaves sprayed with 0.5% AA (given 4x a day); 0.5% AA (given 2x a day); 1.0% AA (given 4x a day); and 1.0% AA (given 2x a day), then compared to the control. The treatments were laid out in Completely Randomized Design with three replications. Data gathered were computed and analyzed using Analysis of Variance and treatment means were compared using Duncan’s Multiple Range Test. Results revealed that amino acid supplementation of mulberry leaves at 0.5% concentration and fed to silkworms 4x a day and reared during cold-dry season is ideal for cocoon yield per box, filament length and effective rearing rate. Supplementation of 1% concentration fed 2x a day positively affected larval weight at maturity. Grasserie disease was observed but did not significantly affect the survival rate of silkworm during rearing.