Improving the Silkworm, Bombyx mori L. Cocoon Yield by Supplying the Larval Stage Diet with A Vitamin Mixture | ||||
| Egyptian Academic Journal of Biological Sciences. A, Entomology | ||||
| Volume 17, Issue 1, March 2024, Page 61-65 PDF (474.23 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/eajbsa.2024.342713 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Nagat H. Soliman | ||||
| Plant Protection Department, Faculty of Agriculture, El Fayoum University, Egypt. | ||||
| Abstract | ||||
| A mixture of vitamins in the cocoon yield of silkworm, Bombyx mori L. (Chinese hybrid-9f7x) was studied. Vitamins concentrations were 2, 4, 6 and 8 mg/ml. Results showed that; the concentration was 8mg/ml. of the mixture of vitamins was the best treatment. The weights of fifth instar larvae were 2.125 g when compared to 2.000 g in the control, the weights of pupae recorded 0.800g compared to 0.711g in the control, mortality percentages of the fifth instar were 6.25% when compared to 7.50% in control, durations of the fifth instar larvae were 9.15 day comparing to 9.65 days in control, percentages of cocooning were 93.69% comparing to 90.05% in the control, the productivity of silk was 2.38 cg/day comparing to 1.89 cg/day in control, weights of cocoon were 1.186 g, comparing to 1.031 g in the control, weights of cocoon shell were 0.218 g when compared to 0.183 g in the control and ratio of cocoon shell were 18.38% compared to 17.74% in the control. | ||||
| Keywords | ||||
| Silkworm; Bombyx mori L; Mixture of vitamins; cocoon yield | ||||
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