How to identify the health of big silkworms

First, when sniffing into the silkworm room, smell the smell of the silkworm room. If the silkworm room has only the fresh smell of mulberry leaves, but no other peculiar smell, it shows that the silkworm is disease-free.

Second, after listening to mulberry with your ears, if you hear the sound of silkworms eating mulberry like a light rain, it shows that the big silkworms are healthy.

Third, observe the body color of silkworms with your eyes, and the body color of healthy silkworms is generally blue and white. When eating silkworms, the skin is tense and shiny, and the action is lively, raising the head and chest at rest; the dorsal vascular segment beats rhythmically; the population develops in the same size; the feces have a certain shape (except mature silkworms), and the grains are separated.

Fourth, after blowing gently into the silkworm seat with the mouth, the healthy silkworm immediately raises its head and chest.

Fifth, touch the back of the hand on the silkworm, if you feel that the silkworm is tight and cold; second, when you catch the silkworm with your hand, the silkworm resists forcefully, which shows that the silkworm is healthy.