CATDOLL : CATDOLL: How to breed maggots?

Fly maggot breeding technology: \x0d\x0a1. Construction of breeding facilities\x0d\x0a1. Construction of fly breeding room\x0d\x0aFly breeding room is specially used to raise adult flies, that is, flies. Generally, 20~40 square meters are enough. You can use the old house for renovation, which can also save costs. \x0d\x0aThe house should be equipped with screen doors and screen windows to prevent flies from escaping. \x0d\x0aIf breeding in winter, heating equipment is required, preferably a heater, and air conditioning can also be installed if conditions permit. The indoor air is required to be fresh and the light is more than 10 hours a day. \x0d\x0aMost flies are raised in cages. Cage breeding not only takes up less space, but most importantly, it does not pollute the environment. We can set up a breeding rack in the fly breeding room. The breeding rack is made of wood and can be divided into two layers. Each layer of the breeding rack is equipped with a fly cage made of nylon gauze. The fly cage is fixed on the rack like a mosquito net. The cage is 100 cm long, 40 cm wide and 80 cm high. The breeding flies are kept in the cage; at the same time, a working opening with a diameter of 30 cm is left in the middle and lower part of the fly cage. The working opening should be made into a cylindrical tube with white cloth for feeding, watering and taking and placing the egg-laying pad. \x0d\x0aIn addition, a piece of nylon gauze can be hung in the middle of the cage to increase the habitat area for adult flies. The bottom of the cage is supported on a small flat plate. \x0d\x0aIn addition, each fly cage should be equipped with a feeding tray (a plastic dish with a diameter of 15-20 cm), a water tray (25 cm x 15 cm x 6 cm), an eclosion tray (40 cm x 30 cm x 8 cm) and an egg tray (40 cm x 30 cm x 8 cm) for egg-laying objects. \x0d\x0a2. Construction of maggot breeding room\x0d\x0aThe maggot breeding room is mainly used to breed fly maggots for seed preservation. The room temperature is required to be 20~28℃, and the humidity can be 65%~70%. Other indoor breeding facilities should be determined according to the breeding method adopted, such as setting up multi-layer breeding racks, maggot breeding basins and heating equipment. Generally, these facilities are placed on both sides, leaving a walking path in the middle, which can fully utilize the space and facilitate operation and management. \x0d\x0a3. Construction of maggot breeding greenhouse\x0d\x0aThe maggot breeding greenhouse is specially used to breed fly maggots for protein feed. It can be built into a simple shed as long as it is windproof and waterproof. \x0d\x0aThe maggot breeding pool can be designed as this long strip pool or a small rectangular pool. \x0d\x0aIf it is a long strip pool, the length is not limited, and the width is about 1.2 meters. The two long sides are set with a certain slope, the angle is 45 degrees, and at the same time, the two long sides must have 11-20 cm grooves, and the height of the grooves is about 8-10 cm. This is for the convenience of collecting maggots in the future. \x0d\x0aIf it is a small rectangular pool, the area is usually 3-4 square meters. There are slopes and grooves on all four sides. The setting requirements of the slope and groove can be operated with reference to the long strip pool. The only difference is that you can bury a maggot collection bucket at the corner of this pool, and the edge of the bucket should be slightly higher than the bottom of the pool, which is also for the convenience of collecting maggots. \x0d\x0aAfter the breeding facilities are built, you can then cultivate maggots. \x0d\x0a2. Cultivation of fly maggots\x0d\x0aThe specific operation steps of cultivating fly maggots can be divided into the following aspects (chart): hatching of pupae → breeding of seed flies → collecting egg masses → centralized hatching → breeding in separate trays (partial seed retention) → separation of fly maggots → cultivation of fly maggots → utilization of fresh maggots → repeated cycle production. \x0d\x0a1. Cultivation of seed flies\x0d\x0aPut the purchased fly seeds into the eclosion tray. Basically, 10,000 fly seeds are about 150 grams. Usually, an eclosion tray with a length of 40 cm, a width of 30 cm, and a height of 8 cm can hold up to 750 grams of fly seeds. \x0d\x0a2. Hatching of pupae\x0d\x0aPut the eclosion tray into the fly cage and tie the working port tightly. As long as the appropriate temperature and humidity are guaranteed, the fly seeds can eclode into flies after 3-4 days. Generally, the most suitable temperature for flies is 25℃-30℃, and the relative humidity of the air is preferably 50%-80%. If the temperature is low in winter, you should turn on the heater to increase the temperature. If conditions permit, you can also turn on the air conditioner. If the temperature is around 36 degrees, it will take two days for the flies to emerge. \x0d\x0aWhen flies are found to have emerged, feed trays and water basins should be placed in the breeding of flies. Flies, like other animals, also need enough protein, sugar and water to maintain life and reproduction. Under artificial breeding conditions, we use 50% milk powder and 50% sugar, of which some expired sugar cubes can be used, which can also save costs. \x0d\x0aPut sugar and milk powder in two feed trays respectively; and put a sponge of the same size and thickness of 2 cm in the water basin, and then add water on the same plane as the sponge on the sponge, so as to prevent the flies from falling into the water and drowning when drinking water. \x0d\x0aIn addition, in order to promote the development of flies and mate and lay eggs, water, sugar and milk powder should be added in time to ensure that the flies have sufficient nutrition. At the same time, in order to increase the amount of eggs laid, you can start from the emergence of flies and feed one-third of raw eggs per cage every day. Feeding for three consecutive days can achieve the best effect. When feeding eggs, it is best to lay a layer of gauze on the surface of the eggs in the feed tray to prevent flies from sticking to it when eating. \x0d\x0aDuring this period, not only the temperature and humidity should be guaranteed, but also appropriate light, because appropriate light can stimulate adult flies to feed and lay eggs. Generally, the light exposure for adult flies is 10-11 hours a day. Natural light can be used on sunny days. On rainy days and when the light is relatively dark, fluorescent lamps or incandescent lamps should be used for lighting. Turn off the lights at night and let them rest. The breeding fly room should be ventilated frequently to keep the indoor air fresh. \x0d\x0aCollecting egg masses On the fourth day after the emergence of adults, flies can be seen mating, and on the fifth day, they can lay eggs. Therefore, generally on the fourth day, it is necessary to place egg-laying materials in the fly cage in time. Egg-laying materials are solid feeds used to lure flies to lay eggs. This type of feed is nutritionally comprehensive, can meet the nutritional needs of flies, and has a strong attraction to flies. We usually choose wheat bran as egg-laying materials. However, before using wheat bran, it must be moistened first. Just add clean water to the wheat bran so that it can drip water and can be loose when put down. Spread a layer of the adjusted wheat bran in the egg-laying basin with a thickness of about 1 cm. The four corners should be slightly thicker, about 2-3 cm. Put the egg-laying materials into the fly cage. After mating, flies will naturally lay eggs on wheat bran. Fly eggs are white, and milk powder is also white, so after starting to lay eggs, you only need to add sugar to the feed tray instead of milk powder. The purpose is to prevent flies from laying eggs on milk powder and delaying egg-laying. \x0d\x0aMost of the flies lay eggs around 8 am and 3 pm, so eggs should be collected once a day at 12 noon and 4 pm. When taking out the egg tray from the fly cage, you need to put in new egg trays so that the flies can lay eggs in the egg tray in time. We can see white egg masses laid by flies around the egg tray. The eggs are oval and about 1 mm long. At this time, we should take the egg tray to the maggot breeding room for breeding in time. At the same time, we should quickly cover the surface with some wet bran, which can not only prevent the flies trapped in the tray from escaping, but also prevent the egg masses exposed outside from drying up because the fly eggs like a wet environment. \x0d\x0aThe flies will die naturally after about a month and can be discarded. \x0d\x0a3. Breeding of maggots\x0d\x0aWhen the fly eggs are taken to the maggot breeding room for breeding, as long as the appropriate temperature and humidity are guaranteed, fat and large fly maggots can be bred. \x0d\x0aThe development time of concentrated incubation eggs is 12-24 hours, and the specific incubation time will be shortened as the temperature rises: (chart) When the temperature is 20℃-22℃, the hatching time of fly eggs is 24 hours; at 25℃, the hatching time is 16-18 hours; at 28℃, it takes 14 hours; at 35℃, it only takes 8-10 hours. When the temperature is reached, the most suitable humidity for egg hatching is 75%-80%. \x0d\x0aIn actual production, we generally keep the temperature at 20℃-22℃. After 24 hours, the eggs become very small larvae, and the density is very high. At this time, if it is used for seed preservation, then in order to prevent the density from being too high and the nutrition from being insufficient, the maggots need to be divided in time. If it is not used for seed, there is no need to divide the tray. Now, let's take a look at how the maggots for seed preservation are cultivated. \x0d\x0aDivided tray feeding (partial seed retention) Generally, the number of flies in each cage is about 50,000. We can divide the eggs laid by each cage into three portions for feeding. This practice is also called "divided tray". The purpose is to prevent the larvae from being affected by the high density when they grow up and become maggots. \x0d\x0aThe specific operation method is: take three feeding basins, put about 3 cm thick wet wheat bran in each basin (subtitles-wheat bran is also mixed with water), and then put one-third of the small larvae in the egg tray together with the wheat bran in each feeding basin for feeding. \x0d\x0aAs the larvae grow up, the second tray division is required after 24 hours. The method of dividing the tray is the same as the first time, and each tray is divided into three portions. During the feeding process, every 24 hours, check whether the wheat bran in the cultivation basin has been eaten by the maggots. If it is found to be lacking, wheat bran should be added in time to prevent nutritional deficiency. Generally, after four days of feeding, the maggots are basically mature, with transparent or slightly yellow bodies. They will no longer eat even if there is feed, and their activity ability will weaken. At this time, the maggots should be separated from the wheat bran. \x0d\x0aSeparation of maggots Under daily light, pour the maggots in the feeding basin together with the wheat bran on the separation box. The maggots themselves are afraid of light, so they keep drilling in. Through the peristalsis of the maggots, the waste residue is automatically discharged to the periphery. We only need to scrape off the surface bran layer by layer with a wooden board, and the mature maggots can be separated from the wheat bran. Collect the separated maggots in the feeding tray. Here, in order to absorb and dry the moisture on the maggot body and prevent the maggots from escaping, a small amount of dry wheat bran should be added to the feeding tray and stirred evenly until each maggot becomes granular. In this way, the maggots can also be prompted to pupate as soon as possible. \x0d\x0aThe separated maggots can be kept for breeding or eaten. As long as the maggots used for seed preservation are placed on the culture rack, at a temperature of 20℃-30℃, they will become pupae after 1-2 days. You see, these pupae are the fly species you have cultivated. With these fly species, you can repeat the production cycle. \x0d\x0aAfter the maggots are separated, the remaining waste residue still contains rich nutrients, and we can reuse them, for example, as feed for pig farming. When using, you can first mix these waste residues with pig feed and then feed them, or you can feed them directly. \x0d\x0aWhen the eggs grow into larvae, if they are not used for seed preservation, they can be directly taken to the maggot breeding plastic shed for breeding. The maggots raised can be used as a good protein feed to feed poultry or aquatic products. \x0d\x0aBefore putting the larvae, first, place the culture medium in the maggot breeding pool. The most suitable culture medium is pig manure or chicken manure. (Subtitles: The culture medium should not drip water) Pour the manure into the pool, and then use a shovel to pile the manure flat until it is piled into a strip with a thickness of 10-20 cm and a width of about 50 cm. Next, pour the cultured larvae on the manure, basically pouring two fly cages of larvae hatched per square meter. The larvae absorb manure to enhance nutrition in the maggot breeding pool. After about 24 hours, if the nutrients in the manure are mostly absorbed by the maggots, they must be replenished in time, just pile some manure on top. \x0d\x0aAfter about four days, the maggots have matured, the manure has been loosened, and the nutrients have been completely absorbed by the maggots. After maturity, most of the maggots will crawl into the ditch or the maggot collection bucket because they like to climb high. You just need to collect them. \x0d\x0aFresh maggots are rich in protein and can be used as high-protein feed to feed pheasants, wild ducks, or feed fish and eels, etc. This can also improve the disease resistance of farmed animals and aquatic products. The feces left after breeding fly maggots can also be used as organic fertilizer to grow grain and vegetables. \x0d\x0a3. Daily management\x0d\x0aDuring the breeding process, attention should be paid to daily management. Every day, timely add fly feed, place egg-laying objects, change drinking water, etc. \x0d\x0aAt the same time, the hatching time of eggs should be recorded in time to facilitate timely egg collection. After the staff leave their posts, the floor hygiene of the fly room and maggot breeding room should be cleaned. The food tray for feeding flies should be cleaned every two days, including the sponge. The sponge should be replaced every month. \x0d\x0aIn addition, houseflies are important sanitary pests. In all aspects of breeding management, it is necessary to control the breeding work and prevent the breeding population from entering the natural environment. \x0d\x0aWith the development of livestock and poultry and aquaculture, the demand for protein feed is also increasing. Breeding fly maggots has the advantages of short cycle, high yield and low cost, and is currently the first choice for producing animal protein feed. A livestock and poultry farm equipped with a fly maggot farm is equivalent to building another insect protein feed production plant. Using the feces discharged by livestock and poultry to feed fly maggots, high-protein feed can be obtained, turning waste into treasure and harm into benefit. The feces after breeding fly maggots can be used as high-quality organic fertilizer for crops and used to grow grain and vegetables. This special conversion function is beyond the reach of other feed insects.