Feeding Response of the Silkworm,Bombyx mori, to Compounds Induced by UV Irradiation of Mulberry Leaves

1995 ◽  
Vol 59 (7) ◽  
pp. 1326-1327 ◽  
Author(s):  
Hiroe Yasui ◽  
Mitsuo Yazawa
Keyword(s):  
Bombyx Mori ◽  
Uv Irradiation ◽  
Feeding Response ◽  
Mulberry Leaves ◽  
Silkworm Bombyx Mori

Feeding response of the silkworm,Bombyx mori, to UV irradiation of mulberry leaves

1992 ◽  
Vol 18 (4) ◽  
pp. 561-569 ◽  
Author(s):  
Mitsuo Yazawa ◽  
Toshiaki Shimizu ◽  
Tsuneo Hirao
Keyword(s):  
Bombyx Mori ◽  
Uv Irradiation ◽  
Feeding Response ◽  
Mulberry Leaves ◽  
Silkworm Bombyx Mori

scholarly journals Effect of Antibiotics on the Haemocyte Count and Rearing Performance of Silkworm Bombyx mori L.

2020 ◽  
pp. 528-538
Author(s):  
Iqra Rafiq ◽  
Z. I. Buhroo ◽  
K. A. Sahaf ◽  
N. A. Ganie ◽  
M. F. Baqual ◽  
...  
Keyword(s):  
Bombyx Mori ◽  
Economic Traits ◽  
Silkworm Larvae ◽  
Mulberry Leaves ◽  
Survival Percentage ◽  
Bombyx Mori L ◽  
Ceftiofur Sodium ◽  
Antibiotic Agents ◽  
Silkworm Bombyx Mori ◽  
Total Haemocyte Count

Background: Antibiotic agents have been used in recent years to increase the growth of silkworm larvae and to improve production. In this context, the present investigation reported the effects of ceftiofur sodium, oxytetracycline and enroflaxcin on total haemocyte count (cells/mm3), survival percentage and economic characteristics in silkworm Bombyx mori L. at various concentration levels. The study regarding the effect of antibiotics was conducted on the silkworm breed APS-45. Three concentrations (0.05%, 0.10% and 0.15%) were prepared for each antibiotic. The worms were reared upto 3rd instar without any treatment. After third moult silkworms were supplemented with antibiotic fortified mulberry leaves. Results: The experimental results showed that the effect of different antibiotics on economic parameters like larval weight, larval duration, cocoon weight, shell ratio and raw silk percentage were significantly increased in the treated lines in comparison to the control. Antibiotics also increased survival percentage and the most effective result was obtained at 0.15% of ceftiofur sodium followed by oxytetracycline and enroflaxcin. In the present study highest THC value of 9157.33 mm/cm3 was recorded in treatment ceftiofur sodium treated batch at concentration C3 0.15%. An increment in the total haemocyte count was observed in other treatments as well and the cell count increased with an increase in concentration of antibiotic dosage and the effectiveness of the antibiotics followed the order ceftiofur sodium, oxytetracycline and enroflaxcin. Conclusion: This research outlines that there is a significant improvement in the total haemocyte count and economic traits in silkworm with the supplementation of antibiotic fortified mulberry leaves. The antibiotic treatment has significantly improved the raw silk percentage and has been found to be effective in reducing the mortality of silkworms. So, this antibiotic fortification can be further exploited for higher raw silk production.

Fate mapping of the silkworm, Bombyx mori, using localized UV irradiation of the egg at fertilization

Development ◽  
1994 ◽  
Vol 120 (10) ◽  
pp. 2869-2877
Author(s):  
M. Myohara
Keyword(s):  
Bombyx Mori ◽  
Uv Irradiation ◽  
Fate Mapping ◽  
Uv Laser ◽  
Fate Map ◽  
Laser Microbeam ◽  
Silkworm Bombyx Mori

Bombyx eggs at the fertilization stage (0-2 hours after oviposition) were irradiated with a scanning UV-laser microbeam (355 nm) over an area of about 1% of the total egg surface. In spite of absence of nuclei or cells at the irradiated sites, larvae from treated eggs showed localized cuticle defects in the integument. The location and frequency of the defects within the cuticular pattern correlated closely to the site of irradiation both in the anteroposterior and the dorsoventral direction. Based on the correlation, presumptive regions for each larval segment were located and a fate map of the Bombyx egg was established.

scholarly journals Influence of Supplementation of Zea Mays Flour on the Growth and Economic Traits of Silkworm, Bombyx Mori L.(PFD)

2016 ◽  
Vol 3 (3) ◽  
Author(s):  
Shifa Vanmathi. J
Keyword(s):  
Zea Mays ◽  
Bombyx Mori ◽  
Pupal Weight ◽  
Filament Length ◽  
Economic Traits ◽  
Mulberry Leaves ◽  
Flour Protein ◽  
The Impact ◽  
Silk Filament ◽  
Silkworm Bombyx Mori

<div><p><em>Studies were  carried  out  on  the  impact  of supplementation of Zea mays flour on  silkworm  Bombyx mori  belonging  to double hybrid variety (PFD).  The 3<sup>rd</sup>,4<sup>th</sup> 5<sup>th</sup>  instars    larvae  were  feed  with  leaves  supplemented  with different concentrations of Zea mays flour.  Maximum  larval  weight  was  observed in  5<sup>th</sup> instar  larvae  in 10% Treatment (4.59±0.31g )  and  5% Treatment (3.98±0.23g ) as compared  to  the control (3.13± 0.14g ).Mulberry leaves  treated with Zea mays flour  protein (10%)fed  larvae  recorded a  maximum  cocoon weight (2.32±0.07g),  pupal weight (1.53±0.12g) shell weight (0.42±0.02g) , shell ratio (24.55±0.62%)  silk filament length  (851.11±6.94m)  silk filament  weight (0.51±0.04g). Shell  ratio  in this treatment  (10%)  showed  an  increase of 18.38 %  over  control filament  length  21.64% . Larvae fed with mulberry  leaves  enriched with  Zea mays flour  protein  showed  significant  enchancement  in  economic characters of Bombyx mori was  traced.  </em></p></div>

scholarly journals C/N RATIO OF MULBERRY LEAVES FED TO SILKWORM, Bombyx mori L. LARVAE AS AN INDEX FOR ITS PRODUCTIVITY.

2009 ◽  
Vol 34 (4) ◽  
pp. 3949-3964
Author(s):  
M. Eid, ◽  
Souad Mahmoud ◽  
S. El-Maasarawy ◽  
Hanan Hamada ◽  
Ghada Hammad
Keyword(s):  
Bombyx Mori ◽  
Mulberry Leaves ◽  
Bombyx Mori L ◽  
Silkworm Bombyx Mori

Effect of Tukra (Mealybug) Infected Mulberry Leaves on the Quantitative Traits of New Polyvoltine Strain of Silkworm, Bombyx mori L.

2009 ◽  
Vol 6 (4) ◽  
pp. 198-205
Author(s):  
C. Ramesha ◽  
S.V. Seshagiri ◽  
H. Lakshmi ◽  
S.S. Kumari ◽  
C.G.P. Rao
Keyword(s):  
Bombyx Mori ◽  
Quantitative Traits ◽  
Mulberry Leaves ◽  
Bombyx Mori L ◽  
Silkworm Bombyx Mori

scholarly journals EFFECT OF SOME ADDITIVES TO MULBERRY LEAVES ON LARVAL HAEMOLYMPH OF SILKWORM (Bombyx mori L.)

2010 ◽  
Vol 1 (3) ◽  
pp. 133-139
Author(s):  
S. Rateb ◽  
M Hussein ◽  
M. Mohamed ◽  
Heba Abdel-Karim
Keyword(s):  
Bombyx Mori ◽  
Mulberry Leaves ◽  
Bombyx Mori L ◽  
Silkworm Bombyx Mori
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