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Mohsen, A., Khalil, S., El-Deeb, M., Saad, M. (2007). EFFECT OF FEEDING WITH DIFFERENT VARIETIES OF MULBERRY LEAVES ON MORPHO-PHYSIOLOGICAL AND PRODUCTIVITY CHARACTERS OF SILKWORM (Bombyx mori, L.) BREEDS.. Journal of Plant Protection and Pathology, 32(11), 9581-9592. doi: 10.21608/jppp.2007.220986
A. M.A. Mohsen; S. I. Y. Khalil; M. A. El-Deeb; M. S.I. Saad. "EFFECT OF FEEDING WITH DIFFERENT VARIETIES OF MULBERRY LEAVES ON MORPHO-PHYSIOLOGICAL AND PRODUCTIVITY CHARACTERS OF SILKWORM (Bombyx mori, L.) BREEDS.". Journal of Plant Protection and Pathology, 32, 11, 2007, 9581-9592. doi: 10.21608/jppp.2007.220986
Mohsen, A., Khalil, S., El-Deeb, M., Saad, M. (2007). 'EFFECT OF FEEDING WITH DIFFERENT VARIETIES OF MULBERRY LEAVES ON MORPHO-PHYSIOLOGICAL AND PRODUCTIVITY CHARACTERS OF SILKWORM (Bombyx mori, L.) BREEDS.', Journal of Plant Protection and Pathology, 32(11), pp. 9581-9592. doi: 10.21608/jppp.2007.220986
Mohsen, A., Khalil, S., El-Deeb, M., Saad, M. EFFECT OF FEEDING WITH DIFFERENT VARIETIES OF MULBERRY LEAVES ON MORPHO-PHYSIOLOGICAL AND PRODUCTIVITY CHARACTERS OF SILKWORM (Bombyx mori, L.) BREEDS.. Journal of Plant Protection and Pathology, 2007; 32(11): 9581-9592. doi: 10.21608/jppp.2007.220986

EFFECT OF FEEDING WITH DIFFERENT VARIETIES OF MULBERRY LEAVES ON MORPHO-PHYSIOLOGICAL AND PRODUCTIVITY CHARACTERS OF SILKWORM (Bombyx mori, L.) BREEDS.

Article 10, Volume 32, Issue 11, November 2007, Page 9581-9592  XML PDF (606.81 K)
Document Type: Original Article
DOI: 10.21608/jppp.2007.220986
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Authors
A. M.A. Mohsen1; S. I. Y. Khalil1; M. A. El-Deeb1; M. S.I. Saad2
1Plant Prot. Dept. Fac. Agric. Zagazig Univ., Egypt.
2Plant Protection Research Inst.
Abstract
Feeding silkworm breeds on four mulberry leaves varieties had a clear effect  on:
1- Silkgland soluble protein and enzymes:
In general, silkworm  breed EM6 manifested the highest soluble protein and increased GPT activity in the  silkgland, while, the lowest  one was noticed in breed JH3. In addition, feeding larvae  on leaves of Moritiana and Kokuso-27 increased soluble protein and GPT activity; while, feeding Balady variety decreased soluble protein and  hydrdyzing  enzymes  glutamic pyruvic  transaminase (GPT) and  glutamic ozaloacetic transaminase (GOT).
Breed JH3 manifested the least levels of trehalase, amylase and invertase enzymes activities, while feeding larvae on  other three breeds on leaves of Kokuso-27, Balady and Moritiana varieties increased (in descending  order) the silkgland enzymes, while variety Kanva –2  recorded the  minimum value.
2- Cocoon parameters:
Weight of fresh cocoon and cocoon shell weight were significantly affected by both of mulberry varieties and silkworm breeds, as feeding with Kanva-2 variety recorded the highest values. Also silk content ratio of fresh cocoon  was increased in larvae fed on Kanva variety, while it was affected by silkworm breeds. Accordingly, leaves of Kanva-2 variety and breed JH3 proved to be the most economic in this concern.  
3- Silk filament characters:
Silkworm breed EM6 and  mulberry leaves Kanva-2 variety induced the longest of reeled filament and / or the heaviest weight  of silk filament. However, size of silk filament was not affected either with silkworm breeds or mulberry varieties.
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