The difficulty of maggot breeding and the most common problems

The main results are as follows: 1. Domestication of flies is difficult and takes a long time.

The solution is: direct introduction. ?

2. Flies do not lay eggs.

Species of flies always stay in places with strong light and do not want to come down to eat food, do not lay eggs or lay very few eggs. The reason for this is: first of all, it is mainly environmental factors. For example, the temperature is too low, the light is too dark, there is a peculiar smell that flies do not like, food plates and sponges are not cleaned to produce peculiar smell, the food fed to flies is bad, the feces are not fresh or fermented, the eggs are not fresh, the farmers smoke in the maggot room, the farmers spend a lot of money in the breeding room to drive away flies, too many male flies and few female flies, and so on. The solution is: the temperature in the breeding room should be above 22 ℃ and below 38 ℃, the light should not be too dark, other peculiar smells such as paint should be eliminated, the food plate and sponge should be cleaned every 2 days, and the sponge should be replaced every 20 days. The breeding flies should be fed with fresh food every day, and the manure for breeding maggots should be fresh (within 3 days). The egg collection should be ready for use. Do not add EM or substances that flies do not like in the egg collection, smoking is strictly prohibited in the breeding room, breeders or visitors should walk gently into the breeding room, it is strictly forbidden to scare flies, let flies know that we are not their enemies, and raise maggots with better dung to ensure that there are enough female flies. After solving the above problems, it is easy for flies to lay more eggs.

3. Maggots climb out before they grow up.

Under normal breeding conditions, maggots do not climb out of the dung pile until they grow up and mature, but in breeding, some of them crawl out before they grow up, and a large number of small maggots crawl back and forth on the dunghill, unwilling to get into the dunghill to eat food. The main reason is that the temperature in the manure is too low, when the temperature of the manure is lower than 27 ℃, it is difficult for maggots to absorb nutrients in the manure, the manure is not fresh or overfermented after entering the maggot house, and the temperature in the manure is too low, so the maggots can not absorb the nutrients in the dung, so the maggots have to get out of the dunghill to find food. The solution is: raise the temperature in the breeding room, the temperature of the manure will also increase, and the nutrients can be absorbed by maggots; put fresh dung on the maggots that are crawling everywhere, and the maggots will immediately drill into the new dung to look for food; second, there are too many maggots and there is not enough manure, and all the nutrients in the manure have been eaten by maggots, so there is no food, so maggots have to come out to find another food. The solution is to add new dung. The above situations are most common in spring and autumn.

4. The maggots are not separated automatically or are not clean.

The principle of automatic separation is that using the physiological characteristics of maggots, maggots pupate when they grow up and mature, but they do not like to pupate in the growing dung heap, so they will climb out of the dung heap, but they will be blocked by the wall of the maggot pond. They have to walk along the wall to both sides, and as soon as they get to the edge of the maggot bucket, they encounter a tiny slope. When they first climbed to the edge of the maggot bucket, a sudden downhill (the maggots had no eyes) caught them by surprise and could never climb up again. Sometimes, especially in winter and spring, it is always found that the maggots are not separated cleanly, and many maggots pupate in the feces. The first reason is that the temperature in the breeding room is too low, which is lower than 20 ℃, while the temperature in the dung pile is above 30 ℃. The maggots immediately feel that the temperature outside is disadvantageous to pupation, so they have to pupate in the dung pile. Second, the dung pile is too large, and the maggots next to it are automatically separated, while the maggots that live in the middle of the dung pile have not climbed out of the dung for a long time. Without eyes, they think that the dung pile is boundless, and it is futile to climb again. They have to pupate in the dung pile; third, after the frequent activities of fly maggots, the dung and maggots are always stuffed with the edge of the maggot pool, and there is no way for maggots to climb out. The solution is: the time for automatic separation of maggots is from 3 to 9 o'clock, during which the temperature should be above 20 ℃, and the weight of manure in each maggot pond is less than 100kg. Shovel the dung clogged on the edge of the maggot pond into the middle 2 or 3 times a day, so that the road by the wall of the maggot pond is unimpeded.