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Research Paper | Zoology | Volume 14 Issue 8, August 2025 | Pages: 1744 - 1745 | India
Comparative Study of Rearing Performance of Some Strains of Eri Silkworm, Samia ricini Donovan During Autumn Season
Abstract: India is the biggest consumer and second producer of silk in the world while largest producer of eri silk in the world. Eri Silkworm is a multivoltine and polyphagous species but in Bihar, commonly reared on the leaves of Castor (Ricinus communis L.). Six strains such as GBP (Greenish Blue Plain), GBS (Greenish Blue Spotted), GBZ (Greenish Blue Zebra), YP (Yellow Plain), YS (Yellow Spotted) and YZ (Yellow Zebra) of eri silkworm were undertaken for this study to observe their rearing performance comparatively during Autumn season. Data obtained after rearing of 300 hatched larvae at a range of 21?C to 33?C temperature and 36.0% to 99.5% relative humidity level. Maximum single larva weight was observed as11.90 gm in GBP followed by GBS 11.75 gm and minimum as 9.02 gm in YS during autumn season. Maximum single cocoon weight was observed as 3.34 gm in GBP followed by YS 3.30 gm and minimum as 3.20 gm in YP strain. Maximum single shell weight during autumn season was observed as 0.46 gm in GBP followed by YS 0.45 gm and minimum as 0.42 gm in YP strain. Highest shell ratio was obtained as 13.77% for GBP followed by YS 13.64% and minimum as 13.13% for YP strain. Thus, it is clear after analysis data observed among six strains of Samia ricini Donovan, GBP strain shows significant increase of all parameters.
Keywords: Eri silkworm, Samia ricini, Autumn season, Castor, Eco races
How to Cite?: Rajani Kant Manoj, "Comparative Study of Rearing Performance of Some Strains of Eri Silkworm, Samia ricini Donovan During Autumn Season", Volume 14 Issue 8, August 2025, International Journal of Science and Research (IJSR), Pages: 1744-1745, https://www.ijsr.net/getabstract.php?paperid=SR25823101709, DOI: https://dx.dx.doi.org/10.21275/SR25823101709