Impact of temperature variations in worm containers and nutrition amount on silk glands and silk productivity

Abstract During the feeding of mulberry silkworms, when temperature in larvae fluctuates sharply and amount nutrients fed is below or above norm, metabolism physiological processes body are disrupted. As a result, silk cocoon water balance, respiration, digestion absorption impaired, activity glands creating conditions for disease-causing microorganisms. In this case, growth silkworms by 4 times less worms with 50% reducing cocoon, as survive without healthy development productivity cocoons grown. This results 20.0% reduction its average weight 23.3% decrease shell. At same time, on farms where leaves short supply, yield per box 15-30 kilograms, quality 14% lower. due to fact that result inability gland accumulate enough fluid underdevelopment satiety leaf significantly affect gland. Feeding high-nutrient varieties increased silkworm size 6.9-10.1%, viability 2.5%, total cocoons, 4.5%, 8 kg. particular, sharp change air worm relative norm (25-26 °C) weakens disruption process worms. Due liquid synthesized, 6.5%, 61.5-64.4%, shell 73.7-74.5%, 8-10 kg, variety 6-12%. has been scientifically proven.