Do silkworms divide male and female?

Silkworms distinguish between males and females. The sex of the silkworm can be distinguished according to the structure of the eighth and ninth segments of the abdomen. There are four transparent dots on the ventral side of the eighth and ninth segments of the female silkworm, and there is a transparent dot in the ventral center of the ninth segment of the male silkworm.

Feeding technique

1. Do a good job of disinfection before sericulture to reduce the incidence of silkworms.

In the central and western regions of China, the financial resources of local governments and farmers are limited, the ways of planting and breeding are generally backward, and the quality of cocoons is low. Cleaning and disinfection before sericulture is the most important link in the whole disease prevention and disinfection work, and it is also a prerequisite for high yield of silkworm cocoons. In order to improve the disinfection effect, it is necessary to achieve "one sweep, two washing, three scraping, four elimination, five brushing white" in the disinfection steps; six points are required in the disinfection process: the silkworm room should be cleaned, silkworm utensils should be washed clean, the medicament should be properly dispensed, the liquid should be sprayed evenly, and the room equipment should be eliminated completely, and keep it well after elimination.

2. Do a good job of invigorating and promoting youth to improve the one-day hatching rate

The quality of the work of replenishing and promoting green is directly related to the one-day hatching rate. The majority of silkworm farmers should pay attention to the work of replenishing and promoting youth, mainly to control the temperature and humidity and shading work and other measures. After the silkworm eggs arrive in the room, the eggs should be spread in time, and the temperature should be controlled at 78: 79 ℉ and the humidity difference should be controlled at 2 ℉. In the evening before the ant harvest, the temperature should be raised to 80: 81 ℉, and the humidity difference should be 1 ℉. At the same time, the eggs should be strictly shaded in order to achieve the goal of hatching.