Rapid culture of fly maggots

Using this method, there is no need to build a special maggot house to convert the corn meal, wheat bran and rice bran that Monopterus Albus does not eat into maggots that Monopterus Albus likes to eat. The specific methods are as follows:

1. Cultivate tools. General household plastic pots, plastic buckets and other containers can, the four walls are relatively smooth, the depth of the basin is more than 25 cm.

2. The selection and preparation of egg absorbers and the collection and cultivation of fly eggs. If there are fresh chicken droppings, you can directly use fresh chicken droppings as egg absorbers to collect fly eggs. The method is: put the fresh chicken manure in the basin, if the chicken manure is too dry, sprinkle a little water properly, put it in a place with more flies in the field, put it in a cool place as far as possible, and use shade properly if the sun is too strong. Generally speaking, flies will accumulate and lay eggs immediately after they are put in, and the egg absorbers will be retrieved every afternoon. It can be seen that there are chunks of fly eggs on the surface of chicken dung. It should be covered with corn dung or wheat bran mixed with water immediately to ensure that the egg blocks have a certain degree of humidity. Many small maggots can be seen the next day and can be raised in pots. The method of raising is to spread about 3-5 cm thick wet wheat bran or cornmeal in the basin, and then put the hatched maggots on top of the wheat bran or cornmeal together with egg sucks. after eating the egg suction, the small maggots will quickly drill into the feed below, and under normal circumstances, they can grow into maggots in 3 days. The powder used for raising maggots can be fermented or directly used, while the use of rice bran to produce maggots must be fermented, and the rice bran must be of good quality, and the "rice bran" which is completely rice husk does not produce maggots. The yield of fly maggots can be increased by fermentation. Generally speaking, about 0.5 jin of maggots can be produced by using 1 jin of wheat bran and 0.4 jin of maggots can be produced by 1 jin of cornmeal. The output can be doubled by adding wastes such as pig blood. The powder mixed with water is easy to get hot, so the thickness of the powder in the basin should not be too thick to prevent maggots from dying of heat. Maggot pots should be kept at higher temperatures (25-30 ℃) but in darker places.

3. Caged management of flies. Using this method to collect fly egg blocks will not only not increase the number of wild flies, but also gradually reduce the number of flies in the wild for a long time, but in some densely populated places, in order to avoid causing people's disgust, especially those who want to use red-headed flies as breeding, flies can be raised in cages.

4. Separation of maggots. There are several ways to separate fly maggots. (1) the method of separating large and small basins. Put a smaller plastic basin in a larger basin, wet the four walls of the small basin with a wet cloth, pour maggots and materials into the small basin, the thickness is about 2 cm, and the maggots will crawl along the basin wall into the large basin. (2) light separation method. Place a sieve that can be drilled by maggots on a plastic basin. Wet the maggot with water and pour it into the sieve with a thickness of no more than 2 cm. Put it in the sun, because the maggot has the habit of being afraid of light, it will desperately drill down and fall into the basin below. (3) if a maggot house is built, it can be poured into the maggot pond and separated automatically.

The waste after breeding fly maggots can be directly used to raise chickens, pigs, fish and so on. It is still a very good feed, and animals love to eat it very much.

Using this method, according to the calculation of breeding rice field eel with fly maggots, generally, about 7 jin fresh maggots can increase the weight of rice field eel by 1 jin, and the feed cost is not very high. Taking wheat bran for raising maggots as an example, fermented wheat bran can produce fresh maggots per jin. Calculated at 0.7 yuan per jin of wheat bran, 0.4 jin of waste can be produced after producing maggots per jin of wheat bran, which is worth 0.24 yuan as feed. The cost of fresh maggots per jin is about 0.46 yuan, and the cost of using pure maggots to gain weight per jin of rice field eel is about 3.3 yuan. And the ricefield eel gains weight quickly and will not pollute the pool water, so it is worthy to be widely used by the majority of students. Using fresh maggots and fish feed, the feed coefficient will be significantly reduced, and the breeding cost will be lower.