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How to keep fly maggots

Fly maggot farming

Fly maggots are used in livestock and poultry breeding. They have good palatability, high conversion rate, and rich nutrition. The nutrition is 1.3 times higher than bean cake. According to analysis, the protein content of fresh maggots is 15.62%, and the maggot powder contains 59% to 63% crude protein and 10% to 20% crude fat, which is similar to the content of imported Peruvian fish meal. The content of each amino acid in maggot dry powder is higher than that of domestic fish meal, the total amount of essential amino acids is 2.3 times that of fish meal, and the lysine content is 2.6 times that of fish meal. In addition, it also contains 17 trace elements such as iron, zinc, and copper. Fly maggots are an ideal high-protein livestock and poultry nutritional additive.

Feed equipment and management of fly species

Maggots come from flies, and maggots must be raised before flies. Flies have a strong reproductive capacity, with a female fly laying 100 to 200 eggs each time, and a pair of flies can reproduce 10 to 20 generations a year, producing 266 billion flies in 4 months, with a cumulative pure protein of more than 600 tons, which is unmatched by other methods of producing animal protein.

1. Design of fly house. Flies should be raised indoors. It is best to build a new fly house in a semi-basement. The breeding room of the fly house does not open directly to the outside. There is a closed corridor inside the house. The corridor is entered from the back door of the studio. Black curtains should be hung on the door to prevent flies from escaping. Screens and heating equipment should be installed on the windows. The room temperature should be kept at 20-30℃, with a minimum of no less than 15℃ and a maximum of no more than 35℃.

2. Main equipment. There are fly cages, food trays, egg-laying trays, and eclosion trays. The fly cage can be made into a 60-80 cm cube with thick iron wire, covered with white gauze, with an operation opening on one side. The size of the opening is suitable for placing food trays and egg trays. A sleeve is made of black cloth at the opening to prevent flies from escaping. Each food tray is equipped with 3-4 medium trays for flies to lick the feed. A small water cup is placed in each cage, and a sponge pad is placed in the cup. An egg-laying primer is placed in the egg-laying tray to induce female flies to lay eggs. The eclosion tray is used to hold the quickly eclosing fly pupae during the generation change.

3. Feeding and management. ① Breeding fly feed: grind the 4-day-old maggots cultured aseptically, add 60% brown sugar, 2% yeast powder and appropriate amount of water to make a paste, and add 0.1% sodium benzoate. ② Egg-laying primer: take bran and add 0.03% ammonium bicarbonate and mix well, or use chicken feces is better. ③ Stocking density: 50,000 to 80,000 flies can be raised per cubic meter of fly cage, usually 10,000 to 20,000. ④ Management method: When the breeding flies are found to have mated, they should be placed in the egg-laying tray 2 days later. The egg-laying primer should be loose and evenly spread, with a thickness of 1 to 2 cm. Breeding flies lay the most eggs between 8 and 15 o'clock every day, and the egg-laying tray should be replaced in time. ⑤ Wintering seed preservation: The fly pupae that have been selected and removed from the inferior can be stored in a container with appropriate temperature, humidity and loose feces, and placed indoors and covered with straw to keep warm and moist.

Main facilities and management of maggot breeding

1. Facilities for raising maggots. At present, there are three forms of maggot raising, namely, maggot raising room, vertical maggot raising rack and maggot raising basin. Maggot raising room can be raised in semi-underground form indoors. The bottom and wall of the pool should be plastered with cement to prevent seepage and prevent maggots from climbing up. It is best to paste a layer of 3 cm thick glass on the four walls. A 5-8 cm wide small ditch should also be set around the pool to prevent ants and adjust humidity. The room temperature should not exceed 35℃. The vertical maggot raising rack can be welded with steel bars or made of cement into a three-dimensional or stepped type. The height of the maggot raising basin should be 10-20 cm (the surface of the basin should be smooth) and the internal filling material should be 5-8 cm.

2. Preparation of raising feed: 50% to 60% fresh chicken manure or pig manure, 35% to 45% bran, 5% coarse bran, mix the three materials evenly, and prepare a raising feed with a water content of about 65%, and adjust the pH value to 6.5 to 7.

3. Inoculate and hatch. Inoculate 1 gram of fly eggs per kilogram of culture medium and evenly spread them on the surface of the culture medium in the maggot breeding basin. After 8 to 12 hours, they will hatch into maggots. Keep the temperature of the culture medium stable and no water should be accumulated.

4. Separate and collect. Collect the maggots when they turn yellow after 5 days. Take advantage of the maggots' fear of light, place the maggot breeding basin under strong light, use a dung shovel to move the maggots from the bottom, and finally remove the nutrients on the upper layer and sieve them out with a 10-16 mesh sieve. Wash the maggots and use them fresh or process them for later use.

5. Usage of fly maggots. In addition to feeding livestock and poultry directly, the remaining fresh maggots produced daily can be dried in an oven at 200-250℃ for 15-20 minutes, and then ground into maggot powder for winter ingredients. The general addition amount is about 5%.

I specialize in fly maggot breeding. The cost of raising one pound of maggots using animal feces is only 0.3-0.4 cents. It turns waste into treasure, solves environmental pollution, improves animals' disease resistance, improves product quality, and increases product sales prices. "Wensheng" brand ecological insect eggs are eggs laid by chickens after eating fly maggots. 48 eggs sell for 88 yuan. Now I use fly maggots in combination with other raw materials to develop new products, which are expected to be on the market by the end of the year. The price of each egg is about 5 yuan. To breed flies, as long as the temperature is kept between 25 degrees and 38 degrees and the humidity is between 60-80%, the maggots do not need to be heated in winter. For specific information, you can search: Millionaire sells villa to raise flies

What are the methods for raising maggots?

Natural temperature conditions are necessary for maggot breeding.

When the temperature is below 20℃, flies stop breeding or hibernate, not eating or moving. Plastic sheds can only be used for seasonal breeding. In late autumn, severe winter, and early spring, the temperature does not meet the requirements, and breeding in the shed is futile.

Maggot feed The feed for productive breeding of maggots must be cheap waste, preferably chicken manure produced by professional chicken farmers. Calculated based on 3 catties of chicken manure to 1 catties of maggots, productive breeding requires a lot of feed. If you buy soy sauce residue, tofu residue or other waste, the cost is too high, and the result is often not worth the cost.

It is best to have your own poultry or fish farming professional household to carry out productive breeding of fly maggots with self-consumption ability, so as to reduce the feed cost of poultry and fish and improve economic benefits.

Fly maggot breeding is largely unhygienic, so when choosing a breeding site, pay attention to the following points:

Stay away from residential areas. Chicken manure or other waste piled up in the yard will allow adult flies to enter the house and bite and crawl around, affecting human health.

Pay attention to the year-round wind direction. Pay attention to the local year-round dominant wind direction and set up the maggot breeding farm on the leeward side of the chicken farm to prevent the odor from drifting into the breeding room and chicken house, affecting the healthy growth of breeders and chickens.

Keep away from water sources. Fly maggot farms must be far away from self-supplied water sources and public water sources to prevent sewage from seeping into the ground, causing water quality deterioration and affecting the water use of chickens.

Waste dumps and productive maggot breeding sites must have dedicated areas for the storage of chicken manure and maggot breeding waste to prevent environmental pollution.

The construction of breeding rooms and sheds The area of ​​the insulation room and shed is calculated as 1 square meter for every 1 kilogram of maggots produced. Rooms and sheds that are too large are not conducive to heat preservation, and too small cannot guarantee the output. This is a major problem in maggot breeding, which involves investment issues. If funds permit, a cold-proof insulation room can be built for year-round breeding; if funds are insufficient, greenhouse-style seasonal breeding can be carried out. Simple outdoor breeding is affected by temperature and rain. The breeding time in the south is longer and that in the north is shorter. This type of breeding can neither guarantee the output nor harm environmental hygiene, so it is not recommended. The following points should be paid attention to when constructing sheds for productive breeding:

To ensure that the indoor temperature of the greenhouse is above 25℃, the indoor walls should be of a certain thickness, the doors and windows should be tight, and there should be heating and temperature control facilities indoors. The temperature of the plastic greenhouse is too high in summer, and it is difficult to reach 25℃ in cold seasons, so it is not suitable for breeding.

When breeding in a rainproof and sun-proof shed, pay attention to rain protection to avoid damaging the breeding environment of fly maggots. In midsummer, pay attention to avoid sun exposure to prevent the fly maggot feed from drying up and causing the maggots to die.

The specific structure, scale and shape of rooms and sheds can be adapted to local conditions and do not have to be forced to be consistent, as long as they are applicable.

Productive breeding management of maggots can be roughly divided into two parts: inducing flies to lay eggs and the growth of maggots.

Due to the instinct of safe hatching, female flies usually lay eggs in a quiet or sheltered place rich in nutrients. To understand this habit of female flies, you can use plastic square plates, cans and other containers, put nutrients (meat bones, leftover soup, fish offal, watermelon rinds, wheat bran, sugar solution and other waste) in them, and place them in a quiet place to lure flies to lay eggs. When the eggs hatch into maggots, you can move them into chicken manure to let them grow.

When feeding and managing fly maggots during their growth process, it is important to understand that after the maggots mature, they no longer need to be fed with feed, but begin to crawl outward into the soil to pupate, and the maggots should be collected or caught in a timely manner.

Fly maggot breeding can be divided into two types: dry and wet. Dry breeding is: spread chicken manure on plastic sheeting or cement floor, 80 cm wide, 10-15 cm high, and unlimited length. After the fly eggs or hatched larvae are moved on, water is sprinkled to maintain a certain humidity, and the eggs or larvae can hatch and grow. Wet breeding is: build a non-leaking pool of 30 cm deep, 60-80 cm wide, and unlimited length in the room or shed, put water in the pool, put chicken manure in and stir it into a thick slurry, move the fly eggs in, and it can hatch into maggots and grow. Regardless of dry or wet breeding, when the fly maggots grow, the maggot manure should be cleaned in time and new chicken manure should be replaced regularly to increase production.

Processing and storage of fly maggots The collected or fished fly maggots should be put into hot water to kill them in time, then fished out and dried in the sun (dry), or directly mixed into corn crushed feed and fed in time. Wet maggots mixed into corn flour should not be left for a long time to avoid mold and deterioration.

The daily output of fly maggots is high, and the moisture content must be controlled after drying to facilitate long-term storage. When processing fly maggots, rotten and deteriorated dead maggots must be picked out to avoid affecting the quality of maggot powder.