Vitis vinifera (L) Derived Herbal Formulations for Qualitative Silk Cocoons from Silkworm, Bombyx mori (L).

Abstract

In sericulture, scientific evidences for the efficiencies of many herbal-treatments remains limited. Plant-based products (Herbal Formulations) are used to treat diseases or to maintain health of animals. are called herbal products, botanical products, or phytomedicines. The present attempt deals with utilization of herbal-juvenoid-formulations and herbal juvenoid compound (derived from grape and available in market) for qualitative silk cocoons from silkworm, Bombyx mori (L). The nutrition quality and health of larval instars exert influence on quality of the silk yield in sericulture. The acetone solutions of Grape-Seed-Oil (10 ml Grape-Seed-Oil dissolved in 90 ml acetone) and ten microliters of acetone solutions of Linalool (100 ppm) were used in present attempt for the topical application to the fifth instar larval stages of silkworm, Bombyx mori (L) (Double Hybrid Race). Group of larvae fed Mulberry leaves treated with aqueous solution Drakshasav; group of larvae topically applied with acetone solutions of Grape-Seed-Oil (10 ml Grape-Seed-Oil dissolved in 90 ml acetone) followed by feeding Mulberry leaves treated with aqueous solution Drakshasav were also maintained. Fifth Instar Larval Life Duration (Hours) and Tissue Somatic Index (TSI) of silk glands of fifth instar silkworms of control group, Grape-Seed-Oil treated group; Linalool treated group; group fed with mulberry leaves treated with aqueous solution of Drakshasav and group treated with Grape-Seed-Oil treated acetone (topical) followed feeding by mulberry leaves treated with aqueous solution of Drakshasav were recorded 145.33 ( 13.786), 31.426; 168.73( 13.221), 52.625; 177.46 ( 13.786), 52.728; 162.87(14.572), 52.759 and 168.58(18.789), 53.854 units respectively. Shell Ratio of cocoon spun by fifth instar silkworms of control group, Grape-Seed-Oil treated group; Linalool treated group; group fed with mulberry leaves treated with aqueous solution of Drakshasav and group treated with Grape-Seed-Oil treated acetone (topical) followed feeding by mulberry leaves treated with aqueous solution of Drakshasav were recorded 19.422; 23.970; 27.989; 28.048 and 28.378 units respectively. Denier scale of silk filament spun by fifth instar silkworms of control group, Grape-Seed-Oil treated group; Linalool treated group; group fed with mulberry leaves treated with aqueous solution of Drakshasav and group treated with Grape-Seed-Oil treated acetone (topical) followed feeding by mulberry leaves treated with aqueous solution of Drakshasav were recorded 3.243; 4.706; 4.793; 4.882 and 4.948 units respectively. The range of improvements of tissue somatic index of silk glands (TSI); Shell Ratio of cocoon and Denier scale of silk filament through treatment was 52.625 to 53.854; 23.970 to 28.378 and 4.706 to 4.948. Efficient use of source of juvenoids like linalool, grape seed oil and drakshasav in desired solvent for treating the silkworm larvae serve to orchestrate the fortification of health through the preventing the infection of microbial pathogens; extension of larval age, consumption and utilization of nutrition for significant yield of silk product