How long does it take for mulberry leaves to be fertilized before feeding silkworms?

It only takes about ten days, which generally does not affect.

1. Mulberry leaves are planted too densely or in a cool place under insufficient sunshine. Mulberry leaves are used to feed silkworms because of insufficient sunshine for a long time. Silkworms grow slowly and are weak, which is easy to induce silkworm diseases.

Second, immature leaves Mulberry leaves are immature, with more water content, less dry matter and more organic acids. Feeding them to silkworms will lead to malnutrition, weak constitution and easy to induce suppuration and malacia.

Third, the drought-affected leaves are dry for a long time, and the moisture and nutrients of mulberry leaves are reduced and the cellulose is increased. This mulberry leaf is difficult to meet the growth needs of silkworms, which will obviously reduce the blood water content of silkworms and cause silkworm diseases.

Fourth, the moisture content of mulberry leaves with old leaves is below 70%, and the old leaves are crushed by hand. The old hard-leaf silkworm is not easy to eat and digest, and the silkworm grows slowly and loses weight because of lack of nutrition.

5. In the process of transportation and storage, the water loss rate of dead leaves of mulberry leaves reached 65,438+00% ~ 20%, and the silkworm's appetite for dead leaves was obviously reduced, resulting in slow development.

6. Pests and diseases damage mulberry leaves, accompanied by various pathogens, which will cause silkworm children to get sick and reduce cocoon production.