Summary of maggot culture techniques

Benefit analysis of fly maggot culture:

The crude protein content of fly maggot powder is as high as 56% 63% (average 59.5%), fat 13%, ash 7%, sugar 3.1%. As a high-protein feed, the nutritional level of fly maggots is comparable to that of imported Peruvian fish meal, 1.3 times that of bean cake and 1.9 times that of bone and meat meal. Fresh maggots contain 15% crude protein and 5.8% crude fat, which can not only directly feed conventional pigs, chickens, ducks and fish, but also the best live bait for special animals, such as shrimp, crab, eel, rice field eel, American frog, bullfrog, seven-star fish, grouper, turtle and so on. In addition, maggots also have the efficacy of medicine and high-protein nutritional supplement. Therefore, maggot culture is the best feed raw material. In the whole feed production industry, maggots will participate as raw materials with high nutritional properties. It seems that maggot culture is also a channel to start a business and get rich. So how to carry out maggot culture in the end? What are the techniques of maggot culture? Take a look at the following experience sharing.

1. Heat preservation of fly room

Maggot culture requires high indoor temperature, and the activity of flies is greatly affected by temperature. It can only crawl at 4-7 ℃, fly at 10-15 ℃, feed, mate and lay eggs at more than 20 ℃, and is especially active at 30-35 ℃.

In the room, some smaller spaces are separated by foam sheet or plastic film to make some sealed 10 cubic meters sealed fly breeding rooms (with appropriate exhaust pores), and the flies are concentrated in these fly rooms and raised separately. Poor light in the fly room needs to hang a light bulb of more than 100W to make up the light. When the fly room is still less than 20 ℃ in heat preservation, it is necessary to increase the temperature appropriately, and the smaller fly room can use electric lamp or electric furnace to increase the temperature; for the larger fly room, honeycomb coal stove can be placed on the inside to increase the temperature, the furnace should be covered, and the gas can be exported from the fly room with an iron chimney to prevent harmful gases from poisoning flies.

2. Manure fermentation

The formula for feeding fly maggots can be selected:

1. Pig manure 60% chicken manure 40%

2. Chicken manure 60% Pig manure 40%

3. Pig manure 80% alcohol 10% corn or wheat bran 10%

4. Cow dung 30% pig manure or chicken manure 60% rice bran or corn meal 10%

5. Bean curd residue or cassava dregs 20% 50% chicken and pig manure 50% 80%

6. 100% chicken manure or 100% pig manure

After the manure is prepared, about 10% chopped straw is added and evenly poured into EM active bacteria (5 kg per ton of dung) to make the manure contain 90% water and ferment in a sealed fermentation tank. Turn the feces on the third day and add 3 kilograms of EM per ton of dung. Generally, the feces can be used after 6 days. The temperature is low in spring, and the fermentation time of manure is shortened appropriately, so that the manure can ferment to produce heat in the process of feeding fly maggots, which can reduce or eliminate the external heating source, and the maggots can grow normally.

3. Vas deferens flies

A 10-square-meter fly room ensures at least 20,000 flies. Set aside an appropriate number of maggots to turn into pupae-feathered flies every 2mur3 days, because flies usually live for about 15 days, and seed flies age and die every day.

The flies should be fed regularly every morning with 350 grams of water, 50 grams of brown sugar and a small amount of milk powder (10 square meters of breeding area). In order to increase the fecundity of flies, add 2 grams of oxytocin (oxytocin should be suspended for 3 days). The above raw materials are melted and added to the plate sponge, and a small plate is filled with a small amount of brown sugar for flies to feed. Food plates and sponges should be cleaned every 2 days.

Every afternoon, put the egg collector in a basin and put it in the fly room for flies to lay eggs on it. Egg collection can be made of fresh animal offal or wheat bran mixed with fresh pig blood. In the evening, cover the egg mass with a few egg collectors to facilitate hatching. the next day, the egg collection and the egg block will be taken out together and added to the maggot pond dung pile.

4. Fine breeding of fly maggots

After fermentation, the manure was piled into the maggot pond and stacked with 5 ridges of 20-30cm in height. Add the egg collection with fly eggs taken from the fly room to the feces, and add it again the next day, and the hatched maggots will drill into the feces to feed.

In the process of cultivation, if it is found that the hatched maggots have been hovering on the surface of the feces and do not get into the feces, wheat bran mixed with pig blood or fresh animal offal should be properly added to feed. Fly maggots come out and crawl everywhere from the feces before they grow up, indicating that the air permeability of the manure is poor or that the nutrients have been exhausted. We should turn the material according to the situation or add new manure as soon as possible.