MASITTA TANJUNG1; MARYANI CYCCU TOBING2; DARMA BAKTI2; SYAFRUDDIN ILYAS1
1 University of Sumatera Utara, Faculty of Mathematics and Natural Science, Department of Biology, Medan 20155, North Sumatera, Indonesia
2 University of Sumatera Utara, Faculty of Agriculture, Department of Agroecotechnology, Medan 20155, North Sumatera, Indonesia
Tanjung, M., M.C. Tobing, D. Bakti and S. Ilyas, 2017. Growth and development of the silkworm (Bombyx mori L.) C301 with heat shock treatments. Bulg. J. Agric. Sci., 23 (6): 1025–1032
Growth and development of the silkworm larvae are strongly influenced by environmental changes such as temperature. The role of temperature on the growth and development of larvae is included as new studies on heat shock proteins. Studies on the growth and development of silkworm larvae by heat shock with different temperatures have been conducted in physiology animal Laboratory Department of Biology University of Sumatera Utara. The Research design used was a complete randomized design (CRD) with four treatments and five replications each consisting of 20 larvae. The treatment consists of administering heat shock at temperature of 34, 38 and 42°C, and without heat shock (ambient temperature). Heat shock was conducted in early 4th instar for 3 hours. The research results showed that of the heat shock can increase the percentage of mortality, accelerate the larval stage, reducing larvae weight by lowering the growth; consumption and digestibility. It also decrease productivity and lead to failure of the formation of cocoon, pupae and imago.