Использование водных экстрактов биомассы дуба при выращивании дубового шелкопряда на нетрадиционном корме

Abstract

Extracts of the fresh leaves of the fodder plants are notable for more pronounced attractive effect and stimulation of the larvae feeding activity in comprasion with the extracts of the dry leaves. Extraction by cold water is more effective than that done by not water. Extracts of the dry leaves contain some substances that slow down larvae growth and development. Preparations obtained when dry oak-bark is extracted by hot water and fresh oak leaves are extracted by cold water promote growth, development, viability and silk productivity of the oak sikworm raised on non-traditional fodder. Extract of the oak bark possesses pronounced phagostimulative properties and increases silkworm's tolerance to microsporidiosis.