Improvement of Silkworm (Bombyx mori L.) Growth and Cocoon Quality Using Nickel Sulfate Supplementation

Stephenraj D

Department of Zoology, St. John’s College, Palayamkottai, Tamil Nadu, India.

Vignesh M

Department of Zoology, St. John’s College, Palayamkottai, Tamil Nadu, India.

Sivanesh H

Department of Zoology, St. Xavier’s College (Autonomous), Palayamkottai, Tamil Nadu, India.

Azhagu Raj R *

Department of Zoology, St. Xavier’s College (Autonomous), Palayamkottai, Tamil Nadu, India.

*Author to whom correspondence should be addressed.


The silkworm belongs to the order Lepidoptera and the family Bombycidae (Bombyx mori L.). The silkworm industry plays a crucial role in providing employment opportunities in India. This study investigated the effects of nickel sulfate supplementation on the growth and cocoon quality of silkworm (Bombyx mori L.). The experiment was conducted at a silkworm-rearing center in Palayamkottai, India, from December 2022 to January 2023. Silkworms were fed Victory-1 (V1) mulberry leaves soaked in different nickel sulfate solutions (100 ppm, 300 ppm, and 500 ppm). Larval weight, duration, cocoon weight, shell weight, shell ratio, and pupal weight were measured for 10 healthy silkworms with good quality cocoons selected from each treatment group. Compared to the control group, supplementation with 500-ppm nickel sulfate solution significantly improved silkworm growth performance (weight) and economic traits (cocoon weight and quality).

Keywords: Bombyx mori, feed supplementation, mulberry and life cycle

How to Cite

Stephenraj D, Vignesh M, Sivanesh H, & Azhagu Raj R. (2024). Improvement of Silkworm (Bombyx mori L.) Growth and Cocoon Quality Using Nickel Sulfate Supplementation. UTTAR PRADESH JOURNAL OF ZOOLOGY, 45(11), 182–189.


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