The differences in the seasons and environmental components considerably affect quality of multivoltine silk worm seed crop such as cocoon weight, shell ratio. Frequent fluctuations conditions day to season point up importance management temperature relative humidity for sustainable production basic farms. Hence know role seasonal on growth development Multivoltine silkworm, present study condu...

The influence of methoprene on the changes in trehalose,glycogen content and economic characters of silkworm were studied in CSR2 x CSR4 (Bivoltine x Bivoltine), and PM x CSR2 (Multivoltine x Bivoltine) hybrids. Application of methoprene caused significant (P< 0.05) increase in trehalose and glycogen contents, both in haemolymph and fat body tissues. The increase in trehalose was about 48% and ...

This study was carried out on 11 Chinese and 12 Japanese silkworm strains maintained by the Center for the Technological Development of Sericulture (CDTS) germplasm bank, located in Pereira, Colombia. The goals were to determine the genetic population structure of the two groups and the association between molecular markers (AFLPs) and important productivity characters. Group analysis showed th...

The effect of a juvenile hormone (JH) mimic R394 (ethyl 9-cyclohexyl-3, 7-dimethy l-2, 4-nonadienoate) applied topically on the abdominal tergum of silkworm (Bombyx mori L.) after the fourth ecdysis has been studied. JH R394 ranging from 1.0, 0.1, 0.01 μl / larva was applied at 48, 72 and 96 hours of V instar larva that was improved the cocoon weight, shell weight and shell ratio etc. The most ...

This article proposes the influence of cocoon drying technology on properties shell and pupa silkworm. We also analyzed change in initial weight cocoons treated at different temperatures, microscopic view shells. Cocoons grown times year were taken as object study. As a result treatment with an infrared ray, hot air chemical methods, yield, color solubility compared analyzed.

Reproductive efficiency of economic insects and its rearing performances are greatly affected by hormonal activities together with the environmental and cultural practices. Two different hormones were selected for tropical application on muga silkworm (Antheraea assamensis Helfer) to study their effect on the overall rearing performances. JH-III (Juvenile hormone) in three different concentrati...

The dietary nutritional management influences the rearing and commercial parameters of the silkworm. When silkworms were fed with mulberry leaves fortified with aqueous leaf extract of O. sanctum in the second instar, a positive response with respect to larval and commercial parameters were noticed. Highest larval weight in three instar viz third (1.341g/10 worms),fourth(5.434g/10),while in the...