Key points of mulberry feeding technique for co-breeding of young silkworms
In the process of co-rearing young silkworms, mastering the technology of giving mulberry and keeping good nutrition is the key to ensure the healthy and tidy development of young silkworms.
The selected mulberry leaves were picked in the field and selected in the tree according to the standard of silkworm leaves of each instar. Select non-toxic, pollution-free, insect-free, upper shoots suitable for mature leaves. The mulberry leaves which are not up to the standard, such as old, tender, wilting and secondary pollution, can be removed by the second selection before mulberry blending.
It is very important to keep mulberry leaves fresh and sufficient water in the process of planning storage and storage of young silkworms. The most stored leaves in the mulberry room with low temperature live water storage can be given to the mulberry leaves next time, and those without low temperature living water storage room should be collected and fed now, which can not only keep the mulberry leaves fresh, but also prevent secondary pollution. Look at silkworm mulberry, plan to use leaves, mulberry leaves that have been transferred to the co-breeding room, can not be taken back to the mulberry storage room for the second call.
Reasonable cut mulberry square leaves should be 2 times of small silkworm body length, while long stripe leaves should be cut mulberry with width of small silkworm body length and 4 times of body length.
Before giving pre-treatment to mulberry, it should be evenly seated, expanded, ventilated, ventilated and disinfected. To ensure that the density of silkworm head is reasonable, the silkworm seat is flat and standardized, it is easy to spread evenly, and it is beneficial to reasonably grasp the amount of mulberry used, which is the guarantee to improve the quality of mulberry.
Sasang skills should be given to mulberry from top to bottom, from the inside to the outside, row by row, anti-pollution, anti-leakage. When mulberry, watch silkworms give mulberry, control the amount of leaves used. When sprinkling, grasp the mulberry leaves loosely, keep the distance between the hands and the silkworm seat 20 to 30 centimeters, leave a gap between the five fingers, and let the mulberry leaves leak through the fingers. Sprinkle around first, then in the middle. After giving the mulberry to the mulberry, it should be rechecked to prevent leakage.
Mulberry should be covered with plastic film in time to keep fresh after post-treatment. Do not sweep the floor without anti-drying film to prevent mulberry leaf pollution. After mulberry is covered with film, the remaining mulberry leaves are cleared out of the co-breeding room, the floor is cleaned, and the room is cleaned and disinfected with bleach solution containing 1% available chlorine. All the leftover leaves in sleep are cleared, and the mulberry storage room is changed, cleaned and disinfected.
- Prev
The technology of soaking snake wine
It has a long history to treat diseases with snake wine. Modern pharmacology has also proved that snake wine has anti-inflammatory, analgesic and sedative effects. It can enhance the immunity of the human body and has obvious boil effect in the treatment of rheumatoid arthritis. Snake wine has a strong effect of soothing wind and dredging collaterals, and it has become a veritable "strength of a hundred medicines". 1. The choice of wine the liquor agent for making snake wine should be liquor, which can be distilled wine or mixed wine. In addition to strictly abiding by the prescribed standards, we must also pay attention to the traditional quality standards, such as sorghum and other cereals, which can make the snake.
- Next
The knack of shaking honey in the four seasons
The main economic benefit of beekeeping comes from shaking honey. The method of shaking honey varies with the seasons of the year. As far as the Yangtze River Basin is concerned, the basic principles of shaking honey are: early in spring, diligent in summer, stable in autumn and stop in winter. After the spring begins early in spring, the queen bee begins to lay eggs, the worker bees go out to collect, and the enthusiasm of feeding their young is rising day by day. In particular, when the temperature is warm and cold, they fly around and collect scattered nectar. They usually produce the first batch of mature honey around the end of March.
Related
- On the eggshell is a badge full of pride. British Poultry Egg Market and Consumer observation
- British study: 72% of Britons are willing to buy native eggs raised by insects
- Guidelines for friendly egg production revised the increase of space in chicken sheds can not be forced to change feathers and lay eggs.
- Risk of delay in customs clearance Australia suspends lobster exports to China
- Pig semen-the Vector of virus Transmission (4)
- Pig semen-the Vector of virus Transmission (3)
- Five common causes of difficult control of classical swine fever in clinic and their countermeasures
- Foot-and-mouth disease is the most effective way to prevent it!
- PED is the number one killer of piglets and has to be guarded against in autumn and winter.
- What is "yellow fat pig"? Have you ever heard the pig collector talk about "yellow fat pig"?