TECHNOLOGICAL PARAMETERS OF SILKWORM (BOMBYX MORI L.) EGG STOR-AGE AT DIFFERENT PERIODS OF EMBRYOGENESIS

Abstract

This study presents a comprehensive assessment of the technological parameters for storing silkworm (Bombyx mori L.) eggs during different stages of embryogenesis. The research identifies and systematizes optimal temperature and humidity regimes that ensure stable embryonic development, proper diapause maintenance, and high egg viability. A six-stage storage scheme was proposed, covering the full production cycle—from embryo formation and estivation to overwintering and pre-incubation handling.

The study demonstrates that a gradual decrease in temperature from 24 ± 2 °C to 3 ± 1 °C, with constant relative humidity of 60–70%, provides favorable conditions for metabolic balance inside the eggs, prevents premature activation, and minimizes desiccation. Maintaining this microclimate ensures 90–95% egg viability and an 8–12% increase in hatching rate compared with conventional storage practices. The results also confirm that uniform temperature and humidity control contribute to synchronized larval emergence, enhancing the efficiency of large-scale sericulture production.

The developed storage system offers a practical and standardized framework suitable for industrial sericulture facilities and centralized incubation centers, supporting stable year-round production of high-quality silkworm eggs.