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The present study has been aimed at examining the stimulatory effect of Zinc, Pyridoxine, Methoprene
and Mixed dose on Morphometric Traits of silkworm such as Total body weight, Silk Gland weight and
Gland-Body Ratio of V-instar larvae. The experimental worms were divided in to four groups and fed
with mulberry leaves soaked in the selected compounds i.e. Zinc chloride, Pyridoxine, Methoprene and
with Mixed dose (Zn+B6+H). The Control group of silkworm larvae was fed with normal mulberry
leaves. All groups of silkworm larvae were fed four times in a day throughout the 5th instar larval period.
Both Control and Experimental silkworm larvae were weighed daily and sacrificed on selected days to
collect the Silk Glands from silkworm larvae and the weight of Silk Glands were also recorded daily.
Cumulatively, the findings of the present study finally suggest that Mixed dose induced the Morphometric
Traits, creating the conditions that are highly congenial for Silk Gland growth and silk production.
Key words: Morphometric Traits, Silk Gland, Pyridoxine, Methoprene.