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Effect of mulberry leaves supplemented with food additives on silkworm, bombyx mori l. [electronic resource].

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Yousif,Khalil, S.I

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Language: English Summary language: Arabic Description: p.1101-1114Other title:

تأثير بعض الاضافات الغذائية لأوراق التوت على دودة الحرير التوتية bombyx mori l [Added title page title]

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Zagazig journal of agricultural research, 2004 v. 31 (3) [electronic resource].

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In: Zagazig Journal of Agricultural Research 2004.v.31(3)Summary: Effect of enriching mulberry leaves with different concentrations of ascorbic acid, yeast and fenugreek on some biological and productivity characters of Bombyx mori L. (Romanian race, 837) was studied during spring rearing season of 2002. The obtained results revealed that: 1- Treating mulberry leaves with ascorbic acid caused the highest positive significant effects on the mean weight of mature larva, silk gland, fresh cocoon, cocoon shell and pupa as well as the mean number of deposited eggs! female. Yeast came in the second class. On the other hand, fenugreek as food additive offered to B.mori larvae had a negative effect on the tested biological parameters. 2- The longest and heaviest means of reeled silk filament were recorded with ascorhic acid at 3%, showing increases of 56.1 and 49.9% over the control, respectively. 3- Ascorbic acid 4%, fenugreek 10 and 15% treatments increased silk filament thickness by 5.39· 21.02% over the control.

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Effect of enriching mulberry leaves with different concentrations of ascorbic acid, yeast and fenugreek on some biological and productivity characters of Bombyx mori L. (Romanian race, 837) was studied during spring rearing season of 2002. The obtained results revealed that: 1- Treating mulberry leaves with ascorbic acid caused the highest positive significant effects on the mean weight of mature larva, silk gland, fresh cocoon, cocoon shell and pupa as well as the mean number of deposited eggs! female. Yeast came in the second class. On the other hand, fenugreek as food additive offered to B.mori larvae had a negative effect on the tested biological parameters. 2- The longest and heaviest means of reeled silk filament were recorded with ascorhic acid at 3%, showing increases of 56.1 and 49.9% over the control, respectively. 3- Ascorbic acid 4%, fenugreek 10 and 15% treatments increased silk filament thickness by 5.39· 21.02% over the control.

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