Comparative Study of Biological Characteristics of Larvae, Crude and Dried Cocoon in 7 Races of Silkworm Bombyx mori L., Raised in Transylvania Area
Keywords:
cocoons, races, silkworm, silk encartmentAbstract
7 monovoltine races of Romanian silkworm Bombyx mori L. were breeded in specific Transylvania conditions, assuring the same microclimate conditions, being fed with the same mulberry leaves (Ukraina 107). The results obtained showed a high homogeneity, the differences were due to the variability and genotype characteristic for each individual of every race. Results and standard deviations are within the race standard. The study permitted a ierarchy of the races, following the biological characteristics, microclimate conditions, quantity, quality and breeding technology.
References
Mauchamp B., Royer C, Chavancy G., 2008- The silkworm Bombyx mori an insect in continuous metamorphosis- Seristech- Proceeding of the first international conference “sericiculture-from tradition to modern biotechnology” , Academicpres Cluj-Napoca, pp.15.
Nagaraju, J., Goldsmith M.R., 2002- Silkworm genomics- progress and prospects, Current sciences, vol. 83. No.4.
Tazima Y., 1978- Silkworm an important laboratory tool, National Institute of Genetics, Mishima, Japan
Paşca I., 2004 Cercetări privind influienţa condiţilor de mediu din zona Transilvaniei, asupra unor rase şi hibrizi româneşti de viermi de mătase ai dudului Bombyx mori L., Teză de doctorat Cluj-Napoca.
Marghitas, L. Al., Dezmirean D., Paşca I., 2003 Sericicultura, ed. Mediamira, Cluj-Napoca.
Ramnali P. H. (2000) – Study of biological and technological values of basic characteristics of silkworm breeds (Bombyx mori L.) selected at high temperature and humidity. Zhivotnov “dni Nauki, Vol. 37, No. 4, pp. 98 – 102.
Sannappa B., Devaiah M.C., Govindan R., Ramakrishna Naika 2002 Effect of feeding regimes on coocon traits of Bombyx mori l., Insect Environment, Vol. 8, no. 2, pp 57-58.
Naceva J., Petkov N., Malinova K., 1993- breeding –Genetic Evaluation And Prediction Of The Combinig Ability Of Syryan Silkworm Breeds In Crosses With Bulgarian Breeds. Genetika I Selektsiya, Bulgaria, vol. 26, pp.284-290.
Goodman, W.G., Granger N.A., 2005- In comprehensive molecular insect sciences, vol.3, pp. 319-408. Elsevier, Amsterdam.
Nijhout, H.F., 1994- In Insect hormone, p.267, Princeton Univ. Press, New Jersey.
Wigglesworth, V.B., 1972-In the principles of insects physiology, p.836. Chapman and Hall, London