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Government Of Assam Handloom Textiles & Sericulture Directorate of Sericulture

Rearing of Silkworm

New Productive Bivoltine Hybrids

Characteristics of new hybrids CSR2 x CSR4 and CSR2 x CSR5

  1. CSR2 x CSR4 and CSR2 x CSR5 are characterized by its roboutness, high shell ratio, better neatness and reelability. Favourable rearing season September to February in south India and during in temperate/ sub tropical zones. Moulting is uniform, larval period 23 days.
  2. Fecundity: 590
  3. Hatching percentage: 96.2
  4. Hatching percentage: 96.2
  5. Larval duration:23 days, Hours: 0.00
  6. Yield /10,000/Nos. :9595
  7. Yield/10,000 larvae/ wt./Kg :21.67
  8. Single cocoon weight(g): 2.26
  9. Single shell weight (g):0.553
  10. Shell ratio percentage:24.5
  11. Filament length(m):1285
  12. Raw silk percentage:19.5
  13. Denier :2.95
  14. Reelability % :88.0
  15. Renditta:4.9