A New method of efficient feeding and rearing of Silkworm, Bombyx mori

In the period of big silkworm, especially the fifth instar silkworm, the amount of mulberry used accounts for about 85% of the whole age, and a large number of workers such as removing sand, giving mulberry and catching mature silkworms are concentrated in the fifth instar. According to the survey, the traditional silkworm foil @ # @ 250mm. Not only the amount of work is large, but also the sericulturists are very hard, and the labor efficiency is low. The use of large silkworm fixed silkworm platform rearing and automatic silkworm feeding, no sand removal, no mature silkworm catch, no upper and lower end foil, convenient for mulberry and shedding. Compared with the traditional silkworm foil rearing, it can save labor by more than 50% and reduce labor intensity by 40% and 50%.

First, the production of the labor-saving silkworm platform

A silkworm frame is made of wood. The width and length of the silkworm frame should be determined according to the width and length of the silkworm chamber, combined with the width and length of the cluster (1.1 m × 0.8 m for plastic folding, 0.4 m × 0.55 m for cardboard square). The general inner width is 1.3 m, 1.8 m and 2.4 m, and the interlayer height is 40 cm 50 cm. The bottom layer is 30 cm above the ground. If raised upstairs, the ground floor should be 50 cm away from the ground, which can make full use of the ground layer and increase the amount of feeding. Put a wooden frame at intervals of 1.5 meters. Press a long bamboo pole on each side of the wooden frame, tie up 2 or 4 bamboo sticks in the middle, and then put a bamboo fold on the bamboo (horizontally placed on the bamboo pole). The bamboo fold is bundled around and covered with breathable plastic woven cloth (do not use plastic film bedding), so as to form a silkworm bed (bed). Generally, the area of a silkworm platform for raising silkworms is 32 square meters. The silkworm platform is more than 10 centimeters away from the wall to prevent cooked silkworms from climbing upward. In the silkworm room where the silkworm platform is built indoors, convection windows are required to ensure good ventilation and fresh air. A silkworm platform is built around the center of the house or on both sides of the house, leaving a sidewalk of about 60cm or 1.1m in the middle of the house, which is convenient for disinfection, mulberry, cocoon picking and other operations. The scaffolding silkworm platform can be built in the shade of bamboo forest or forest in summer and autumn, which can reduce the harm of high temperature, hot and dry climate to silkworm, and obtain stable and high yield of silkworm cocoon.

Second, the labor-saving silkworm rearing techniques.

1. Transfer silkworms to the stage at the right time. After the fifth instar silkworms were fed twice, the leafy silkworms moved to the center of the silkworm platform, accounting for about 1% of the silkworm platform area, so it was appropriate for silkworms not to suffer silkworms. With the growth of silkworms, the area of silkworm seats was naturally expanded around, until the silkworms on the platform were just covered with silkworms. The same batch of silkworms fed on the same layer of silkworms should be put down in the early batch and put on the upper layer in late batches, and must not be reared in the same layer of silkworms early and late.

two。 Good mulberry is full of food. It is required to give mulberry 4 ~ 5 times a day, and grasp the time and amount of mulberry each time. After giving mulberry every time, it is necessary to ensure that there are remaining leaves on the silkworm seat within two hours, so that there are no leaves left after eating, and the amount of mulberry is properly added at night, not feeding tender leaves, feverish leaves, disease and insect leaves, etc., so as to achieve good mulberry full food.

3. Strictly guard against muggy heat and sultry. The resistance of big silkworm to high temperature and humidity is weak. Due to the large amount of mulberry and feces, the silkworm seat is often wet, which is easy to produce bad gas and induce silkworm disease. Therefore, in the absence of strong wind, it is generally necessary to open doors and windows for feeding. In case of high temperature and muggy weather, you can appropriately turn on the electric fan and carry out ventilation to avoid the harm of muggy and sultry to the silkworm body.

4. Strictly disinfect and dehumidify. Big silkworms should do a good job of drug disinfection in silkworm houses and silkworms before coming to the stage. After the silkworm comes to the stage, it is necessary to sprinkle fresh lime powder and lime coke bran (3 ∶ 7) on the silkworm table every morning and evening respectively to disinfect and remove moisture, so as to keep the silkworm seat clean and dry, do not turn the silkworm sand and prevent steaming fermentation.

3. Automatic feeding of cooked silkworms

1. Catch the green in batches and eat late. After about 85% of the silkworms go to sleep, they are sprinkled with lime powder to stop mulberry, and the green silkworms are selected to be reared separately. When the silkworms are paid and fed, they should be given mulberry only after all the sleeping silkworms have molted their skin. In this way, the development of the population can be ensured.

two。 Take molting hormone at the right time. See 5% or 8% mature silkworms (commonly known as news silkworms) add molting hormone in the evening to promote the maturity of silkworms, so as to facilitate the automatic feeding of mature silkworms.

3. Automatic loading. After the addition of molting hormone, the silkworm is basically ripe the next morning, sprinkle lime powder or cereal grass festival on the silkworm seat, and then put on the plastic fold or cardboard square, and the mature silkworm will automatically climb on the harness to find a suitable cocoon location to spit the cocoon. It can also cover the small silkworm net (do not cover the film, newspapers and other non-ventilated materials), which can speed up the cocoon spinning speed of mature silkworms. The back room should be backlit to keep the light dim so as to facilitate the cocoon layer of mature silkworms to be even in thickness. After the cocoon is basically formed, catch the floating silkworms, hang the silkworm in the middle of the silkworm platform with wire hooks, open the doors and windows, ventilate and drain the moisture, achieve the white cocoon color, increase the cocoon quantity and increase the income of sericulture.