CATDOLL : CATDOLL: What are the larvae of flies called? How to cultivate common fly maggots?

What are the larvae of flies called? How to breed common fly maggots?

1. The larvae of flies are called maggots. Maggots are mainly born in human and animal feces piles, garbage, and decaying materials. They feed on feces and decaying materials, and some live in decaying animal carcasses. They pupate under the soil surface and overwinter as pupae. The depth of the overwintering pupae in the soil can reach about 10 cm. They grow and reproduce very quickly. Artificial breeding does not require a lot of equipment. They can be bred indoors and outdoors, in cities and rural areas. Maggots are very active. From the moment they hatch, they keep turning over and stirring, and keep drilling around. They also have strong photophobia and sociality. Maggots like to lurk a few centimeters below the surface of food to feed. When maggots mature, they crawl to the surrounding drier environment such as loose soil, sawdust, etc. to pupate. If the surface of the food is dry, they can also pupate on the surface of the food.

2. Common fly maggot breeding method

Although fly maggot farming has been proposed for more than 20 years, it has not yet formed a scale, and farming in rural areas has not warmed up after all. This is related to the scientific and technological level of rural areas in my country. The efficient sterile cage farming method just makes up for this. In fact, the efficient sterile cage farming technology is popular and easy to understand. It is suitable for both small-scale farms and larger farms and aquaculture farms. This method can be carried out in a flow operation, and it is very convenient to operate and manage.

How to breed maggots_Precautions for breeding maggots

Speaking of maggots, it is inevitable that people will feel disgusted, but I tell you that maggots are rich in protein and can be used as medicine and food. Next, I will introduce to you the breeding method of maggots, I hope it will be helpful to you!

Morphological characteristics of maggots

Maggots are flies that hatch from eggs laid by flies after several hours at 15℃~40℃. They are about two centimeters long and move by crawling. Maggots are rich in protein and can be used as medicine or food. Maggots are the pathogen of myiasis and the larvae of flies. They are also called meat worms and meat granules. When it comes to flies, everyone has seen them, but not everyone knows them in detail.

The growth experience of maggots

Flies are holometabolous insects, and their life cycle can be divided into several stages: egg, larva, pupa, and adult. Most species of female flies lay eggs, but some lay larvae. After 3 to 4 days, the larvae turn into pupae, and the pupae emerge as adult flies with wings and can fly.

How to cultivate maggots

1. Adult rearing

① Equipment. Fly cage: A 50 cm × 50 cm × 50 cm bracket made of iron or wooden bars, covered with plastic or window screen, with an operating hole of 12 cm to 15 cm in diameter on one side. Each fly cage is equipped with a drinking cup, three or four feed trays, and an egg-laying tank. Fly maggot culture tray: Made of plastic or iron sheet, the number depends on the scale of breeding, and the size is preferably 5 kg of culture medium per tray. The culture tray is generally 10 cm high on each side, and the thickness of the culture medium is preferably 3 cm to 5 cm.

② Feed preparation. The food of adult insects is mainly young maggots. First, grind the fresh maggots with a meat grinder (the diameter of the wall holes is 1.0 mm-1.5 mm), and then mix them in the following proportions: 95% maggot paste, 5% brewer's yeast, and 150 ml water.

③ Rearing technology. Put the fly in the fly cage (when the pupae are about to hatch, put them together with the hatching tank). The stocking density is calculated based on the average space of 10 cm3 for each adult in the cage. At least 12,000 flies can be placed in each cage. When 5% of the flies hatch and the male and female begin to mate, put them in the egg-laying tank. The egg-laying tank is an opaque container with an appropriate amount of bran. For easy management, adults should hatch in batches every 7 days. The egg-laying capacity of adults is up to 1,000. After about 12 to 15 days, they can be eliminated when the egg-laying capacity decreases. The method is very simple. After taking out the bait and water, they will starve to death two days later, or be scalded to death with boiling water. Dead flies can be directly fed to poultry, or dried and crushed and mixed into feed. During operation, please note: the room temperature should be controlled at 24℃-30℃, and the humidity should be controlled at 50%-80%. Every morning, take out the two bait trays (one for brown sugar and one for maggot slurry) and a drinking water tank in the fly cage, rinse them clean, and then put in the bait. In order to reduce the number of flies escaping, it is also advisable to take out the fly eggs at this time and move them to the larval room for cultivation. Put about 40 grams of brown sugar in the sugar tray each time, and change it every 2-3 days. Just once. Flies can spread a variety of diseases. During the cultivation process, pay attention to prevent the fungus flies in the cage from escaping. A buffer room should be set up outside the adult room, and there should be a fly-killing device inside to lure and kill individual adults that fly out.

2. Larvae (maggot) cultivation

2.1 Prepare the culture medium. Mix 30% chicken manure and 70% wheat bran or all chicken manure and pig manure and add water to prepare a culture medium with a water content of about 15%.

2.2 Inoculate eggs. Place the prepared culture medium in a fly maggot culture tray with a thickness of about 3 cm to 5 cm (no more than 3 cm in summer), and then inoculate 4 grams of fly eggs per 5 kg of culture medium. The inoculated culture medium can be placed in a culture room at 22℃-25℃ for culture.

2.3 Isolation of fly maggots. Fly eggs can hatch into maggots after 8-12 hours in the culture room, and become pupae after 5-6 days. As feed for livestock and poultry, they can generally be harvested as a product on the 4th day after the larvae hatch. The harvesting method is: taking advantage of the light-avoiding characteristics of fly maggots, place the culture medium under strong light, and the maggots will drill into the bottom of the culture medium. At this time, remove the upper culture medium, pour the remaining culture medium into a gauze sieve, and rinse it repeatedly in water to obtain clean fly maggots.

Precautions for breeding maggots

Myiasis

Myiasis can be divided into three types according to the location of the parasite:

① Special parasitic myiasis. This type of fly maggots have special adaptability to the host and the parasitic organs and tissues. Generally, they can only live and develop in special parts of their normal hosts. Although some do not strictly select the host parasitic organs, they must develop and grow in living tissues. Any part of the human or animal body with mucus or bleeding can attract these flies to lay eggs or directly attract larvae. The larvae cannot penetrate unbroken skin. This type of fly maggots is not limited to any animal. It is also not limited to any part.

② Semi-specialized parasitic myiasis. This type of fly maggots usually breed in decaying organic matter, such as corpses, rotten vegetables, feces or garbage. It is often caused by wounds on humans or animals or suppuration of cavity diseases, which produces a foul smell and attracts flies to lay eggs or larvae. The larvae can reach necrotic tissues through the outward wounds of the cavity, and even temporarily parasitize in normal tissues. There are many types of this type of fly maggots, the most common of which are green flies.

③ Accidental parasitic myiasis: This type of fly usually lives in decaying organic matter, such as feces, rotten leaves and rotten grass. Fly eggs or larvae accidentally enter the host body with contaminated food and parasitize. Clinically, it is divided into gastrointestinal myiasis, urethral myiasis, eye myiasis, otolaryngological myiasis, traumatic myiasis and skin myiasis according to the parasitic site of the maggots.

There are more than 300 cases of myiasis recorded in China, but the actual number is far higher. The number of animals affected is even greater. It is a common zoonosis in pastoral areas.

The main value of maggots

Medical effects

It tastes cold and is non-toxic. Maggots, which secrete mucus throughout their bodies to help them crawl, can save human lives. The ability of these wriggling larvae to heal wounds is the latest discovery in the scientific community. In 2003, it was approved and considered the only living medical device in the Food and Drug Administration. You only need to put the maggots on the wound site, and they will simulate the lifestyle of the wild, devour wound germs and necrotic tissues, promote wound healing, and prevent bacterial infection. In addition, eating maggots can enhance the immune system. It is understood that maggots have extremely strong vitality, never get sick from eating feces, and there is nothing poisonous in the maggots. The dirty environment that other animals cannot tolerate is a paradise for maggots, which is due to their excellent immune function.

1. Malnutrition. In June, clean the maggots from the manure pit, seal them in a bamboo tube, and grind them into powder after drying. Take one or two coins each time, add a little musk, and drink with rice soup. Another recipe: Soak the maggots in rice washing water for one day, change the water every day, then use clean water for three days, also changing the water every day, then dry and roast them into powder, add equal parts of coptis powder. Add five fen of musk to each half liang, and mix them with pig bile to make pills as big as millet. Take thirty to forty pills each time, drink with rice soup. Very effective.

2. Infantile paralysis. Wash and soak the maggots, dry them in the sun, grind them into powder, add a little licorice powder, mix with rice paste and make balls as big as walnuts. Take five to seven balls each time, with rice soup, very effective.

3. Hot diarrhea and vomiting (caused by taking hot medicine). Take fecal maggots, wash them with running water, dry them in the sun, grind them into powder, take one qian each time, and drink with rice soup.

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