What are the traditional methods for breeding maggots?
How do you breed maggots using traditional methods?
(1) Fly-attraction maggot breeding method In summer, flies have strong reproductive capacity. Choose a sunny spot outdoors or in a courtyard, dig a small pit 0.5 m deep, 1 m long and 1 m wide, line it with bricks, then smooth it with cement, use wooden boards or cement precast slabs as a top cover, and install a light-transmitting window, sealing the window (light-transmitting window) with glass or plastic sheeting, then cut a small opening 5 cm x 15 cm in the window. Place rotten fish, smelly intestines or livestock manure in the pit to attract flies in to breed. But be sure to let the flies only enter and not leave. On rainy days, add a cover to prevent rainwater from affecting the growth of the maggots. For the maggot feed, it is best to use fresh manure, which gives better results. After half a month, each pit can produce 6-10 kg of maggots. They are not only large but also plump and tender. After being scooped out and disinfected, they can be fed directly.
(2) Mound maggot breeding method. Mix household garbage, distillers' grains, turf, chicken feathers, etc. into a paste, pile it into a small mound, seal it well with mud, and after 10 days, open the sealed mud and you will see large numbers of maggots moving in the mound.
(3) Okara maggot breeding method. Put 25 kg of okara into a vat, add 25 L of water and mix well, cover with a lid (but leave an entrance for flies to get in), and after 3-5 days of fermentation, large numbers of maggots will breed in the vat. Scoop out the maggots, disinfect them, wash them clean, and they can be fed. Alternatively, after fermenting the okara, put it into an earthen pit, add some rice-washing water, stir evenly, seal the opening, and after 5-7 days large numbers of maggots can also be produced.
(4) Cow dung maggot breeding method. Mix air-dried and crushed cow dung into rice bran, pile it into a small mound with sludge, cover with a straw curtain, and after 10 days large numbers of small maggots will grow. Turn the mound, gently take out the maggots, then put the material back, and after another 10 days large numbers of maggots can again be produced.
(5) Soybean maggot breeding method First buy back 3-4 kg of fresh pig blood from a slaughterhouse, add a small amount of sodium citrate to prevent clotting, put it into a water vat holding 50 L of water, then add a small amount of freshly dead wild trash fish and stir evenly to improve the ability to attract seed flies. Then cover the mouth of the vat with a torn burlap sack, tie it tightly with rope, and place it in a sunny spot outdoors to raise the material temperature. Seed flies can enter the vat through the torn opening in the burlap, and after 7-10 days maggots will appear. Then soak 0.5 kg of soybeans in warm water until soft, grind them into soybean milk and pour it into the vat to supplement the vat material, and after another 4-5 days, a small hand net can be used to catch the large maggots to feed aquatic products, while the small maggots are put back into the vat to continue being cultured. After that, as long as soybean milk is added frequently, maggots can be harvested continuously. When the winter temperature is relatively low, heating can be added for breeding.
(6) Over-water breeding method. Fix a rectangular wooden box on a floating raft on the water. Embed two slidable glass panes in the box cover as the entrance for loading manure or chicken intestines, etc. Cut one rectangular small hole 5 cm x 10 cm at each end of the box, nail wire mesh on the inner side of the holes, and cut one neat horizontal slit in each, pushing the wire mesh at the slit inward to form a gap. The size of the gap should be just enough for flies to get in. Cut one small opening on each of the two walls of the box near the manure, and embed curved funnels. The outer openings of the funnels face the water surface. Between the two glass panes of the box cover, embed a wooden board that can be pulled out, dividing the wooden box into two. Before adding manure, first shade one glass pane on top of the box from light, then pull up the middle partition board; because flies are phototactic, they will move toward the bright end, then press the partition board back into the box, and add manure at the end without flies. The maggots bred by this method crawl into the funnel and then automatically fall into the water, which is relatively simple and labor-saving. Flies can only enter the box and cannot fly out, which meets hygiene requirements.
(2) Mound maggot breeding method. Mix household garbage, distillers' grains, turf, chicken feathers, etc. into a paste, pile it into a small mound, seal it well with mud, and after 10 days, open the sealed mud and you will see large numbers of maggots moving in the mound.
(3) Okara maggot breeding method. Put 25 kg of okara into a vat, add 25 L of water and mix well, cover with a lid (but leave an entrance for flies to get in), and after 3-5 days of fermentation, large numbers of maggots will breed in the vat. Scoop out the maggots, disinfect them, wash them clean, and they can be fed. Alternatively, after fermenting the okara, put it into an earthen pit, add some rice-washing water, stir evenly, seal the opening, and after 5-7 days large numbers of maggots can also be produced.
(4) Cow dung maggot breeding method. Mix air-dried and crushed cow dung into rice bran, pile it into a small mound with sludge, cover with a straw curtain, and after 10 days large numbers of small maggots will grow. Turn the mound, gently take out the maggots, then put the material back, and after another 10 days large numbers of maggots can again be produced.
(5) Soybean maggot breeding method First buy back 3-4 kg of fresh pig blood from a slaughterhouse, add a small amount of sodium citrate to prevent clotting, put it into a water vat holding 50 L of water, then add a small amount of freshly dead wild trash fish and stir evenly to improve the ability to attract seed flies. Then cover the mouth of the vat with a torn burlap sack, tie it tightly with rope, and place it in a sunny spot outdoors to raise the material temperature. Seed flies can enter the vat through the torn opening in the burlap, and after 7-10 days maggots will appear. Then soak 0.5 kg of soybeans in warm water until soft, grind them into soybean milk and pour it into the vat to supplement the vat material, and after another 4-5 days, a small hand net can be used to catch the large maggots to feed aquatic products, while the small maggots are put back into the vat to continue being cultured. After that, as long as soybean milk is added frequently, maggots can be harvested continuously. When the winter temperature is relatively low, heating can be added for breeding.
(6) Over-water breeding method. Fix a rectangular wooden box on a floating raft on the water. Embed two slidable glass panes in the box cover as the entrance for loading manure or chicken intestines, etc. Cut one rectangular small hole 5 cm x 10 cm at each end of the box, nail wire mesh on the inner side of the holes, and cut one neat horizontal slit in each, pushing the wire mesh at the slit inward to form a gap. The size of the gap should be just enough for flies to get in. Cut one small opening on each of the two walls of the box near the manure, and embed curved funnels. The outer openings of the funnels face the water surface. Between the two glass panes of the box cover, embed a wooden board that can be pulled out, dividing the wooden box into two. Before adding manure, first shade one glass pane on top of the box from light, then pull up the middle partition board; because flies are phototactic, they will move toward the bright end, then press the partition board back into the box, and add manure at the end without flies. The maggots bred by this method crawl into the funnel and then automatically fall into the water, which is relatively simple and labor-saving. Flies can only enter the box and cannot fly out, which meets hygiene requirements.