The Effect of Zinc Supplementation on the Production Parameters of Bombyx mori L. species
Keywords:
pupae, serigene glands, silkworm, zincAbstract
This research aimed to evaluate the influence of Zinc, administered as food supplement for silkworm (Bombyx mori L.) on the larvae weight, the weight of the serigene gland, cocoon weight, cocoon shell. The research has been carried out on 5 groups of silkworms one control group (Gr.1) and 4 experimental groups (4 groups receiving zinc), consisting of 50 larvae/group. Zinc was administered in doses of 17, 34, 68 and 136 mg kg-1 larvae - Gr.2-Gr.5. The use of Zinc determined a very significant increase of the larvae weight, to group Gr.5 followed by groups Gr.4, Gr.3 and Gr.2 compared to the control group. The use of Zinc positively influenced the mass of the serigene glands, the cocoon weight, cocoon shell. The Zn content of the pupae from the experimental groups was higher compared to the one recorded in the control group.
References
Hugar I.I., Nirwani, R.B. and Kaliwal, B.B., Effect of zinc chloride on the bio-chemical changes in the fat body and haemolymph of the bivoltine silkworm, Bombyx mori L., Sericologia, 1998, 38, 299-303
Etebari K., Fazilati, M., Effect of feeding on mulberry’s supplementary leaves with N, P and K in some biological and biochemical characteristics of silkworm, Journal of Science Technology Agriculture and Natural Resoursesc, 2003, 7, 233- 244
Bhattacharya A., Kaliwal, B.B., Influence on mineral potassium permanganate on the economic parameters of the silkworm, Bombyx mori L. Proceeding of National Conference on Tropical Sericulture for Global Competitiveness., 2003, 91.
Islam R., Abdul, A., Dipak, P., Shaheen, S., Nilufa, B., Islam, R., Effect of salt, nickel cloride supplimentation on the growth of silkworm Bombyx mori L., Journal of Biological Science, 2004, 4, 170- 172
Albergoni V., Piccinni, E., Coppellotti, O., Response to heavy metals in organisms-I. Excretion and accumulation of physiological and non physiological metals in Euglena glacilis, Comparative Biochemistry and Physiology, 1980, C67, 121-127
Spurgeon, D.J., Svendsen, C., Rimmer, V.R., Hopkin, S.P., Weeks J.M., Relative sensitivity of life cycle and biomarker responses in four earthworm species exposed to zinc., Environmental Toxicology and Chemistry, 2000, 19, 1800-1808
Hugar, I., Kaliwal, B.B., Effect of zinc chloride on some economic parameters of the bivoltine silkworm, Bombyx mori L., Bull. Sericult. Res, 1999,.10, 35-42
Ashfaq, M., Afzal, W. and Asif Hanif, M., Effect of Zn (II) deposition in soil on mulberry-silk worm food chain, African Journal of Biotechnology, 2010, 9 (11), 1665-1672
Chamundeshwari, P. and Radhakrishnaih, K.K., Effect of zinc and nickel on the larval and cocoon characters of silkworms, Bombyx mori. L.‛ Sericologia, 1994, 34(2), 327-330
Mǎrghitaş L., Dezmirean, D., Bojan, C., Paşca, I., Lenhel, G., Suplimente nutritive şi hormonale în alimentaţia virmilor de mǎtase. Ed. AcademicPres Cluj-Napoca, 2009, pp. 130-136, pp. 150-157
Balamani, R., Prince, S.P., Subburam, W., Subburam, V., Effect of zinc on the nutritional indices, economic characters of cocoon and quality of silk ob Bombyx mori L., Indian J., Seric.,1995, 34, 69-71
Şara, A. Nutreţurile şi utilizarea lor în hrana animalelor p. 14, Ed. Risoprint Cluj-Napoca, 2006
