Journal of Sericultural and Entomological Science (한국잠사곤충학회지)

Korean Society of Sericultural Science (한국잠사학회)
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Influence of Thyroxine on the Economic Parameters of the Bivoltine Silkworm, Bombyx Mori L.

  • Hugar, I.I. (Post Graduate Department of Studies in Zoology, Karnatak University) ;
  • Kaliwal, B.B. (Post Graduate Department of Studies in Zoology, Karnatak University)
  • Published : 1996.12.01
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Abstract

Effect of topical application with 5, 10 and 15${\mu}$g/ml thyroxine on the pre-cocoon, cocoon, postcocoon and silk improvement were studied in bivoltine silkworm NB18 breed of B. mori L. Thyroxine was applied independently on alternate days to silkworm of IV and V instar larvae. The treatment of all different concentrations resulted in a significant increase in commercial characters like larval weight, silkgland weight, cocooning percentage, female cocoon weight and its shell weight and male cocoon shell weight and its ratio, cocoon dimension, length of the filament and its weight and oviposition. However, there was no significant change in larvel weight in 5${\mu}$g/ml treated group and larval duration was significantly decrease. But moth emergence percentage and hatching percentage did not show any significant change when compared with that of carrier control.

Thyroxine을 5, 10, 15$\mu$g/ml의 수준으로 이화성 누에 NB18 품종의 유충에 도말처리한 결과 유충, 견사선, 고치, 고치층 등의 무게가 증가되고 유충경과 일수는 단축되는 등, 누에의 실용형질이 개선됨을 확인하였다. 이러한 결과는 전반적으로 10-15$\mu$g/ml의 thyroxine 처리구에서 얻어졌고 5$\mu$g/ml처리구는 대조구와 유의차를 보이지 않았다. 화아율과 부화율은 thyroxine처리의 영향을 받지 않았고 유충경과일수는 단축되었다.

Keywords

References

  1. Ann. Report. Central silk board Studies on the application of thyroxine in silkworms Anonymous
  2. Nature v.135 Action of thyroid extract on the respiration of tissues of invertebrates Ashbel,R.
  3. Vitamins and hormones Beck,S.W.;R.S.Harris(ed.)
  4. Environ Ecol. v.5 Thyroxine induced alterations in heamolymph, Plasma protein content during developmental stages of female silkworm, Bombyx mori Choudhuri,A.;Das,S.;Medda,A.K.
  5. Environ. Ecol. v.3 Effect of thyroxine on the pattern of variatios of protein RNA and DNA contents of ovary of silkworm, Bomby mori during metamorphosis Choudhuri,A.;Medda,A.K.
  6. Ind. J. Physiol and Allied Sci. Growth stimulating effect of thyroxine in female and male silkworm, Bombyx mori Choudhuri,A.;Medda,A.K.
  7. Prco. Nat. Acad. Sci. India v.56 Changes in protein and nucleic acid content of male gonad of silkworm, Bombyx mori L at different developmental stages after thyroxine treatment Choudhuri,A.;Medda,A.K.
  8. Physiology of the Amphibia Etkin,W.;J.Mori(ed.)
  9. Fish physiology Gorbman,A.;W.S.Hoar(ed.);O.H.Randall(ed.)
  10. Indian Silk v.17 New technology of silkworm rearing Ⅱ Krishnaswami,S.
  11. Coll. Inst. Cent. Nat. Res. Sci. v.189 Landa,V.
  12. Thesis, Karnatak University Studies on the effect of some chemicals and hormones on the gonads and the life cycle of the silkworm, Bombyx mori L. Magadum,S.B.
  13. Environ and Ecol v.6 no.4 Effect of Thyroxine on the polyvoltine silkworm, the pure Mysore Breed of Bombyx mori Magadum,S.B.;Hooli,M.A.
  14. Entomologia Hellenica. v.10 Effect of 17β Estradiol on the economic paramaters of silkworm, Bombyx mori L. Magadum,V.B.;Magadum,S.B.
  15. Korean J. Seric. Sci. v.35 no.1 Effect of testosterone propionate on the economic traits of the silkworm, Bombyx mori. L. Magadum,V.B.;Magadum,S.B.
  16. Ind. J. Physiol. and Allied Sci. v.29 Studies on the thyroxine and Vitamin $B_{12}$ induced changes in the life cycle of silkworms Mujumdar,A.C.;Medda,A.K.
  17. Compt. rend. soc. biol. v.148 Action of some hormonal substances on development of Calliphora erythrocephala Mathias,P.;Lucile,R.
  18. Proceeding of $8^{th}$ internation thyroid congress. Australian Acad. Sci. Thyroid research Ⅷ Medda,A.K.;Ray,A,K.;Mujumdar,A.C.;Dey,C.D.
  19. Nature v.181 Influence of some iodoamino acids and iodoproteins on growths of Corcyra cephalonica St. Moudgal,N.R.;Raghupathy,E.;Sharma,P.S.
  20. Thesis, University of Mysore Studies on the nutrition of the silkworm, Bombyx mori L. Murthy,M.R.V.
  21. J. Seric. Sci. Jpn. v.56 Effect of thyroxine on the growth and development of silkworm, Bombyx mori Narasimhamurthy,C.V.;Hurkadli,H.K.;Thyagaraja,B.S.
  22. The throid hormones Pitt-Rivers,R.;Tata,J.R.
  23. Naturwissensenschaften v.17 Uber die Wirkung. Kleinster thyroxine doses auf don Gasstoffwechsel Von. Wirbellosen Romeis,B.;Wust,I.
  24. Teil. Arch. Entro. Mech. Org. v.125 Die Working Von. thyroxine auf dess Gasstoftweched von Schmel-terlingspuppen, Ⅱ Romeis,B.;Wust,I.
  25. Statistical techniques in agricultural and biological research Raghava rao.D.
  26. Thesis, Agricultural Studies on methods to increase silk yield of Bombyx mori Linnaeus (Bombycidae: Lepidoptera) Rajshekargouda.R.
  27. Chemistry and physiology of the vitamins Rosenberg.H.R.
  28. Science v.122 Influence of thyroxine and thyroglobuline on rice moth larvae Srinivasan,V.;Moudgal,N.R.;Sarma,P.S.
  29. Nature v.197 Inhibition of the biological action of thyroid hormones by actinomy-D and puromycin Tata,J.R.
  30. Biochemical actions of harmones v.Ⅲ Tata,J.R.;Litwack,G.(ed.)
  31. Indian J. Sercult v.24 Effect of thyroxine on silk improvement in Bombyx mori, L Thyagaraja,B.S.;Jolly,M.S.;Datta,R.K.;Murthy,C.V.N.
  32. Biochemistry and Physiology of nutrition v.Ⅱ Underwood,J.;Bourne,G.H.(ed.);G.W.Kidder(ed.)