Nutrition formula of silkworm in summer and autumn

The main feed of silkworm is mulberry leaf. Because the quality of mulberry leaf varies greatly in different seasons, it has a great influence on the yield and quality of cocoon. If you add nutrition to the cultured summer and autumn silkworms, the yield can be increased by 10% and 20%. The formula technology is introduced as follows:

1. Formula and feeding method of feeding agent

1. Glucose solution additive. During the silkworm rearing period, in case of continuous overcast and rainy weather, the texture of mulberry leaves is tender due to lack of light, the moisture content is high, and carbohydrates are reduced. 5% glucose solution can be used to spray picked mulberry leaves and feed silkworms after drying, which can greatly alleviate the decline of cocoon quality and cocoon weight caused by the decline of leaf quality.

2. Soybean milk additive. In the case of long drought and no rain in summer and autumn, mulberry leaves are often rough and aging and lack of juice. at this time, it is better to spray mulberry leaves with boiling cold soybean milk water to feed silkworms. The silkworms of 4-5 days old were fed with 1 Mel twice during the day. Production method of soybean milk water: wash the soybeans, soak the fat according to the ratio of soybean to water at 1:15, grind the milk and remove the dregs, boil and cool, and spray 15 kg mulberry leaves for every 1000 grams of soybean milk water.

3. Urea liquid additive. The mulberry leaves were sprayed with 0.5% Mel 1% urea, dried and fed to silkworms. From the third day of the 5-day-old silkworm, feeding once a day in the morning and afternoon can significantly increase the cocoon yield.

II. Points for attention

1. The water used in the formula should be clean and cold boiled water, and the concentration of food should not be increased at will.

2. Mulberry leaves sprayed with nutritional supplements should not be stored for too long and should be used up on the same day to prevent fermentation deterioration and breed bacteria. Soybean milk is easy to ferment and deteriorate, so the production quantity should not be too much each time.

3. Mulberry leaves fed with nutrients should not be dried when the weather is dry and hot, and must be dried and fed in cloudy and rainy weather.

4. The urea used in urea liquid must meet the standard, and the urea that is not up to standard produced by small factories can not be used to prevent biuret poisoning.