Building a house to keep flies sounds a bit incredible. However, there is an animal husbandry ecological breeding cooperative in Shimen Town, Tongxiang, Zhejiang Province, and there are really farmers who have done the work of raising flies, and have become the "products" of farmers' breeding. Gu Baiming, the director of the farm, said: "This fly has a great effect, not only cleans the environment, but also brings benefits! ”
In July 2007, when villager Gu Baiming and his friends partnered to open a pig farm, more than 1,000 pigs produced three or four tons of manure per day, which caused everyone a headache. At first, these feces were sent to nearby farmers, but because there were too many, not only did they pollute the environment, he went to the Internet to find a solution, and found that by breeding flies and cultivating maggots, not only can the feces be eliminated, maggots can also breed chickens, ducks and aquatic products, in one fell swoop.
Mentioning these small things, Lao Gu looked proud, "They were specially transported back from Hai'an, Jiangsu Province, and they were cultivated for more than three months, and the technical guidance fee alone cost fifty or sixty thousand yuan." Walked into the "boudoir" of the flies. As soon as you step inside, the first feeling is warmth. The thermometer on the wall shows that the room temperature is 16 °C (about 2 °C outside). Lao Gu pointed to several heating pipes on the wall and said: "We must ensure that it is not less than 15 ° C, otherwise the flies will die in large numbers." ”
The whole room was full of cages from top to bottom, the outside of the cage was layered with white veil, and inside was densely packed with flies, and some flew out. Some of the flies in the cage are resting on the milk powder, enjoying the delicacy, and some are clustered together. Flies are noticeably smaller than those seen in everyday life. "The scientific name of these flies is engineering flies, and they are specially used for work." Gu Changchang said.
"The lifespan of the engineering fly is 28 days, during which time more than 200,000 eggs are laid. In addition to leaving about 5% as a seed fly, other eggs can be directly sprinkled on pig manure after 1 day of hatching. Gu Changchang said.
On the farm, these flies enjoy brown sugar, milk powder, fresh eggs and other delicacies at a constant temperature of about 25 °C. The picture shows workers giving eggs ingredients.
5% of the eggs are seeded, and 95% of the eggs are bred to treat pig manure. According to Lao Gu, there are also people in other places who are breeding flies, but not many successes. Because of the high difficulty of fly breeding technology, the temperature and humidity control requirements are strict. In addition, if the farm is too small and the amount of pig manure is not large, it is not cost-effective to raise flies.
Maggots grown after handling pig manure are used to raise chickens and feed fish. After that, they began breeding this fly, known as the "engineering fly." When these maggots grow into adults, they are used to feed chickens, ducks and aquatic products. Now, 20 to 30 kilograms of maggots per day are wiped out by more than 1,000 "bug chickens" in the farm.
The treated pig manure has no odor and is sold to grow vegetables and fruits. The eggs of flies are used to breed maggots, and with the exception of a part of the maggots used to pupate to hatch new flies, the vast majority of maggots are used to "wipe out" the feces produced by pigs every day. Thus, a new ecological chain is staged in this farm: flies produce maggots, maggots process pig manure, the treated manure can be sold (mainly sold to nearby vegetable growers and kiwi growers as fertilizer), and maggots can feed the chickens in the farm after completing the work. Every link in the chain is put to the best of its ability.
Raising flies has raised an ecological industrial chain, and behind this ecological chain is a larger economic chain, and farmers have tasted the sweetness. Lao Gu said that in the coming year, it is necessary to expand the scale of breeding, collect the livestock manure produced by farmers in the town and surrounding villages, and concentrate on breeding maggots, which can not only clean the environment, but also produce benefits. For more mortal stories, please add the WeChat public account "amtf-yz" (amtf-yz) and leave a message, let us pay attention to the world with images and warm each other.