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Impact of High Temperature during Chawki Stage on the Post Cocoon and Reeling Parameters of Silkworm Bombyx mori L.

Author: Neha Sudan, Jasmeena Qadir, Deepak Gupta, Rabia Sarwar Dar, Murali S. and Harjeet Singh

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Abstract

Temperature plays a pivotal role in determining the growth and development of silkworm. Good quality cocoons are produced within an optimum temperature range. Young age silkworms considerably prefer higher temperature than late age silkworms. The wide fluctuations in temperature harshly influence the physiology, growth and development of silkworm. In this study, an attempt was made to study the impact of temperature above optimum level, during chawki stage on the post cocoon and reeling parameters of silkworm. In this study, significant decrease in several parameters viz., reelability, raw silk percentage, denier, filament length, non-breakable filament length, effective rate of rearing and cocoon yield by number and by weight when silkworms were exposed to high temperature during chawki rearing. However, considerable increase in all parameters was observed when silkworms were reared on optimum temperature (control group). Hence, temperature fluctuations during the chawki stage had an immense effect on the post cocoon and reeling parameters of the silkworm. This study emphasizes the need of maintenance of optimum temperature during the chawki stage for quality and quantity raw silk production.

Keywords

Silkworm, chawki rearing, high temperature, reelability

Conclusion

In the current study, temperatures over the optimal range resulted in decline reeling and post cocoon parameters viz., reelability, raw silk percentage, denier, filament length, cocoon yield per 1000 larvae by weight and number and effective rate of rearing (ERR%). Therefore, maintenance of optimum conditions throughout the chawki stage is of utmost importance to achieve uniform, successful and high-quality raw silk production.

References

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How to cite this article

Neha Sudan, Jasmeena Qadir, Deepak Gupta, Rabia Sarwar Dar, Murali S. and Harjeet Singh (2023). Impact of High Temperature during Chawki Stage on the Post Cocoon and Reeling Parameters of Silkworm Bombyx mori L.. Biological Forum – An International Journal, 15(6): 877-881.