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2017•Journal of Ultra Scientist of Physical Sciences Section BOpen access

Modulation of Juvenile Hormone Analogue (Jha) Mimic on Larval Instars of Tropical Tasar Silk Insect (Lepidoptera: Saturniidae) to Elucidate the State of Silk Performance Parameters

Shruti Yadav, Sobhan Roy

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Abstract

The present paper deals with the effect of Samrudhi, a Juvenile Hormone Analogue (JHA) mimic on 5th instars larvae of Antherea mylitta D. and was studied at interval of 48, 72 and 96 hours for knowing silk performance parameters viz. larval weight, cocoon weight, shell weight and shell ratio (gm). The larvae were reared on arjun leavers (Terminalla arjuna) in the laboratory at temperature range 25+-2oC and 70+-5%RH. It was observed that the weight increased by 10-15% and silk weight by above 10%. The increase in cocoon yield was 8-10kg/100 dfls. Thus, the effect of Samrudhi on 5th instar larvae of Antheraea mylitta D. applied topically may be able to increase tasar silk productivity.

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The present paper deals with the effect of Samrudhi, a Juvenile Hormone Analogue (JHA) mimic on 5th instars larvae of Antherea mylitta D. and was studied at interval of 48, 72 and 96 hours for knowing silk performance parameters viz. larval weight, cocoon weight, shell weight and shell ratio (gm). The larvae were reared on arjun leavers (Terminalla arjuna) in the laboratory at temperature range 25+-2oC and 70+-5%RH. It was observed that the weight increased by 10-15% and silk weight by above 10%. The increase in cocoon yield was 8-10kg/100 dfls. Thus, the effect of Samrudhi on 5th instar larvae of Antheraea mylitta D. applied topically may be able to increase tasar silk productivity.

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Available abstract

The present paper deals with the effect of Samrudhi, a Juvenile Hormone Analogue (JHA) mimic on 5th instars larvae of Antherea mylitta D. and was studied at interval of 48, 72 and 96 hours for knowing silk performance parameters viz. larval weight, cocoon weight, shell weight and shell ratio (gm). The larvae were reared on arjun leavers (Terminalla arjuna) in the laboratory at temperature range 25+-2oC and 70+-5%RH. It was observed that the weight increased by 10-15% and silk weight by above 10%. The increase in cocoon yield was 8-10kg/100 dfls. Thus, the effect of Samrudhi on 5th instar larvae of Antheraea mylitta D. applied topically may be able to increase tasar silk productivity.

Key concepts: Saturniidae, SILK, Instar, Lepidoptera genitalia, Larva, Bombyx mori, Juvenile hormone, Biology

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Modulation of Juvenile Hormone Analogue (Jha) Mimic on Larval Instars of Tropical Tasar Silk Insect (Lepidoptera: Saturniidae) to Elucidate the State of Silk Performance Parameters — Research Paper | ScholarLens