CATDOLL : CATDOLL: How to raise flies in summer How to raise flies in summer

How to raise flies in summer How to raise flies in summer

1. Eggs: After the flies hatch, they will be raised artificially for 3 to 5 days before mating, reproduction and egg laying. The egg-laying period is 5-10 days. The egg-laying feed should be fermented in advance, and the moisture content and ratio should be controlled. After the fly eggs are extracted, they should be immediately placed in the hatching room for hatching. The temperature, humidity and ventilation time of the hatching room should be adjusted according to the season.

2. Maggots (larvae): Sow according to the density of hatched larvae (Note: If the density of larvae is too small, the larvae will grow big, but the yield will be too low. If the density is too large, the nutrition will be insufficient and the maggots will become smaller). Requirements for the ratio of base material for sowing in the maggot pond (the water content of fresh pig manure should not be too much or too little. If the base material is not properly controlled, it will seriously affect the development and growth of the larvae.

3. Pupa: When the fly maggots mature, they crawl into a drier environment and shrink back and forth to become pupae. Their body color changes from light to dark and finally to chestnut brown. It takes 2-4 days for the maggots to become pupae.

Could you please give me some information about fly farming? The more detailed the better?

, Key points of caged fly breeding technology

1. Determination of breeding scale: The size of the breeding scale is determined according to the expected daily output. Taking a breeding farm with a daily output of 100 kg of fresh fly maggots as an example, the following aspects should be considered when designing the breeding farm:

① Adult rearing scale: 10,000 housefly adults produce 4 kg of fresh maggots after 5-6 days of rearing at the peak egg-laying period. If 100 kg of fresh maggots are produced per day, 250,000 adults at the peak egg-laying period need to be reared. Considering other factors, the breeding scale of one production unit should be at least 300,000. If the elimination and renewal of breeding flies are also considered, one renewal cycle takes 4 days. Therefore, two units of breeding fly production scale should be prepared to ensure a continuous supply of egg masses required for the daily production of 100 kg of fly maggots.

② Area required for raising adult maggots At present, there are two methods for raising adult maggots: cage raising and room raising. A 15-20 cubic meter room can hold 20-25 0.5 cubic meter fly cages in three dimensions, and the adult maggots raised can meet the egg mass required for producing 100 kg of maggots per day.

③ The area required for raising fly maggots is 500 grams of fresh maggots per square meter of breeding area. If 100 kilograms of fresh maggots are produced per day, 200 square meters of breeding area is required. Outdoor breeding mostly adopts flat breeding, which requires 250 square meters of land including walkways. Continuous production of 5 production units requires 1,250 square meters of land. Indoor production mostly adopts three-dimensional breeding. Calculated on a 4-story basis, a 70-square-meter room constitutes a production unit. 5 production units require a production plant of 350 square meters.

2. Construction of breeding facilities: ① Breeding fly room: Specially used for breeding adult flies, requiring fresh indoor air, temperature maintained at 24~30℃, relative humidity 50%~70%, and more than 10 hours of sunlight per day. Large glass windows should be left on the south side for lighting. The area of ​​each room is determined according to the scale of breeding, generally 20~40 square meters, equipped with screen doors, screen windows, exhaust fans and heating pipes, etc.

② Making fly cages: This is a necessary facility for caged houseflies. Common fly cages are square fly cages with a length, width and height of 50 cm each. When making them, first use thick iron wire, steel bars or bamboo strips to make a frame, then cover the surroundings with plastic screens or iron screens, and leave a 20 cm diameter operating circular hole at the lower corner of one side of the fly cage. The hole is sewn with a 30 cm long cloth tube for feeding, watering and taking and placing the egg-laying pad. When not in use, tie it tightly to prevent the adult flies from escaping. Each fly cage should also be equipped with a feed tray, a water tray and a small porcelain tray for laying eggs. In addition, several pieces of nylon gauze can be hung in the middle of the cage to increase the habitat area for adult flies. When in use, fix the fly cage on the rack like a mosquito net, and support the bottom of the cage on a small flat plate. In order to facilitate hanging and disassembly and easy disinfection and cleaning, the four corners of the fly cage can be fixed to the three-dimensional breeding rack with clips or hooks.

③ Maggot breeding room: used for indoor breeding. The room temperature is required to be maintained at 26~35℃ and the humidity is 65%~70%. However, the larvae are afraid of light and do not need light, so blackout curtains should be installed. Other indoor breeding facilities are determined according to the breeding method adopted, such as multi-layer breeding racks, maggot breeding basins, maggot breeding boxes, maggot breeding pools, maggot breeding platforms, automated production equipment, heating and control equipment, etc. These facilities are generally placed on both sides, leaving a walking path in the middle, which can fully utilize the space and facilitate operation and management.

④ Maggot breeding plastic shed: used for outdoor heated breeding. The basic structure is similar to the currently promoted off-season vegetable shed. The area and quantity are determined according to the breeding scale. Generally, a small shed of 80 to 130 square meters is used as a production unit. There are two common types of breeding: flat and three-dimensional. There is a door in the east, west, south and north of the shed for ventilation and feeding and unloading. Two exhaust fans are installed above the shed, and a 1-meter-wide walkway is left in the middle and front and back of the shed.

⑤ Maggot separation box: used to separate maggots during solid feed breeding. The separation box is designed based on the negative phototropism of larvae. The length, width and height are 50, 30 and 15 cm respectively. It consists of a screen, a dark room and a lighting part. A strong light is installed on the screen. When separating, place the culture medium mixed with a large number of larvae on the screen, turn on the light source, and manually scrape off the culture medium on top. The larvae will drill down when they see the light. Repeat this process until they are separated.

3. Preparation of breeding feed: Feed is the material basis for raising maggots. The feed required for breeding maggots includes three types: egg-laying feed, adult feed and maggot feed. According to the physical shape of the feed, it can be divided into two types: solid feed and liquid feed.

① Egg-laying feed is a solid feed used to lure adult insects to lay eggs, also known as egg-laying material (information material). This type of feed is nutritionally comprehensive and can meet the nutritional needs of both adult insects and maggots. It also has a special fishy smell and has a strong attraction to adult insects. When using livestock and poultry manure or artificially prepared maggot feed as egg-laying material, spraying 0.03% ammonia water or ammonium bicarbonate aqueous solution, human urine, rotten leeks, etc. can significantly increase the attraction to adult insects. (Attachment: The formula of "ovulation hormone": Take the daily dosage of 150 square meters of breeding area as an example: 5 grams of epimedium, 5 grams of actinolite, 2 grams of angelica, 2 grams of cyperus, 3 grams of motherwort, 3 grams of dodder seed. Mix all the above Chinese herbal medicines, chop or grind into powder, wrap them with gauze when using, boil the medicine and use it. Add the medicine directly to the sugar water, feed for three days, stop for three days, feed for three days, stop for three days... The main ingredient and function of ovulation hormone is to arouse the flies, causing them to mate more, so as to achieve the purpose of making them lay more eggs.)

② Adult feed: Like other animals, adult insects also need enough egg whites, sugar and water to maintain life and reproduction. Under artificial breeding conditions, artificial feed that can meet these needs must be prepared. We recommend using 50% milk powder + 50% brown sugar.

③ Maggot feed is also called maggot culture medium. The water content of the feed is generally controlled at 65%~75%. It contains enough water but no clear water flows out. There are two types of agricultural and sideline product scraps and mealworm feces. The former includes wheat bran, rice bran, bean curd residue, soy sauce residue, distiller's grains, sugar tanks, etc. In order to improve the utilization rate of feed, it is best to ferment or saccharify it for 6-12 hours before use. We recommend using 90% wheat bran + 3% fish meal + 6% soybeans + 1% milk powder.

4. Issues that should be noted in feeding and management: Houseflies are important sanitary pests. In all aspects of feeding and management, we must first do a good job of controlling feeding and prevent the feeding population from entering the natural environment. For example, during the larval growth period, we must ensure sufficient feed supply to prevent the larvae from crawling around in search of food; when the larvae mature and pupate, they must be separated and processed in time to prevent the larvae from moving to other places and losing control; during the adult stage, we must be very careful and always pay attention to the closure of the insect cages, doors and windows, and deal with loopholes in time. In the case of large-scale production, we must also strengthen the planning and continuity of production, do a good job of assembly line operation, organize production by unit, and inoculate one unit and produce one unit every day to update a batch of breeding flies.

3. Breeding of Flies

After 20-25 days of breeding, the number of flies laying eggs will drop significantly and they should be eliminated in time. For breeding flies, eggs laid by flies on the 6th to 10th day should be selected, and high-nutrition feed should be added appropriately for centralized breeding, so that the fly pupae are large and full.

4. Daily management schedule for fly breeding

(1) Production steps: select a site → build a breeding house → ferment feed → add breeding flies → cycle production.

(2) Operation steps: hatching of pupae (2-3 days) → breeding of fly species → collection of egg masses (from the third day onwards) → centralized hatching (1-2 days) → breeding in separate trays (2-3 days) → water retention and temperature maintenance for maggot breeding → separation of maggots → partial retention of seed → utilization of fresh maggots → repeated production cycle.

(3) Management diary:

① At 6 o'clock in the morning, add fly feed, place egg collection objects, and change drinking water.

② Feed the maggots that are hatched in batches in separate trays. Key points: Feed enough at one time.

③Record the temperature and humidity indoors and outdoors in the morning, and record the hatching time of the eggs. If the temperature in the fly room is too high, pay attention to ventilation and cooling.

④ During the high temperature at noon, observe the temperature and humidity of the fly room and pay attention to adding drinking water. Large-scale breeding requires egg collection twice a day.

⑤ Collect the eggs for centralized incubation after 6pm. The best time is 8-9pm, and you can collect the eggs twice a day.

⑥ The food tray for feeding flies should be cleaned every two days, including the sponge. The sponge should be replaced with a new one every 20-30 days. Otherwise, the sponge will become soft, deteriorate, and produce odor, and flies will not come to the tray to eat.

Fly maggots can be fed to chickens, the eggs are of good quality and sell at a high price, and the maggots can also be used to cook, which is very nutritious.

nausea....