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In a series of experiments, larvae were used to feed chicks. During the 0-6 weeks of age, chicks were given 4 grams of chicken per day, increasing to 8-12 grams for those aged 7-12 weeks, and 10 grams after 13 weeks. The crude protein content in the grains was 19%, 15%, and 16% respectively. The study found that feeding chickens with fresh quail during their growth stage significantly improved results. For every kilogram of fresh wolfberry added to each kilogram of feed, chickens gained an additional 0.75 kg, outperforming the control group. By day 28, total egg production and average egg weight were notably higher than in the control group.
Using 10% fly larvae or fish meal separately in layer diets showed promising results. The base diet remained the same. Chickens fed with fly larvae had an egg production rate 20.3% higher than those fed with fishmeal, with a 15.8% improvement in feed efficiency and a 31.2% reduction in feed costs. Fresh quail was directly sprinkled into the troughs or onto the ground, twice daily. Fly maggots were produced in batches, with small remnants left behind, which could be mixed with quail and fed together.
A report titled “A Pair of Flies and Fifteen Billion†from Guangming Daily on April 16, 1993, highlighted the value of flies. Fly maggots contain up to 60% protein, offering a balanced amino acid profile comparable to fishmeal. Adding 11.3% fly maggot powder to chicken feed saved 40% of feed and cut costs by over half. Fresh oysters are considered ideal feed for various economic animals like shrimp, turtles, pheasants, quail, ornamental birds, and fish. Additionally, maggots can provide large quantities of human food oils, health products, and even medical antibiotics. Their shells can be processed into high-purity chitin, with significant industrial, agricultural, and medical value.
The process requires simple equipment and low investment, with quick returns. The main raw materials include wheat bran, chicken manure, and distiller’s grains. Domestic cage breeding of flies allows their population to grow exponentially within 12-15 days, producing protein at a cost of less than 0.1 yuan per catty. Roaches bred using this method can support raising 20 pigs, 5 dry pheasants, 10,000 pupae, 10,000 turtles, and 10,000 fish and shrimp, lowering rearing costs and improving efficiency. Chitin extracted from clamshells can be worth tens of thousands of dollars.
Using plastic greenhouses for fly larval farming allows year-round breeding, with 60% more efficiency compared to normal temperature conditions. The quality of chitin obtained through advanced technology is also excellent. Since 1995, China has developed scientific fly breeding systems. Feeding sterile flies, an initial investment of 500 yuan can generate annual income exceeding 10,000 yuan. When 10% fly powder was used in eggs, chickens produced 20.3% more eggs, with a 15.8% increase in feed efficiency and a 72.3% increase in yield per chicken. Under similar conditions, feeding 10g of fly maggots per chicken increased egg production by 10.1%, reduced material consumption by 0.44kg per kg of eggs, and saved 58.07kg of feed. On average, 1.4kg of eggs were produced from 1.4kg of fresh fly maggots. Moreover, the disease rate in chickens was 20% lower than in those fed compound feeds.
On the same base diet, pigs were given 100g of fly maggot powder or fish meal daily. Pigs fed with fly maggots gained 7.18% more weight, with a 1kg weight gain per kg of feed. The cost was also reduced by 13%. Pigs fed with fly larvae had 5% more lean protein than those fed fishmeal.
At the chick stage, feeding some fly larvae daily resulted in a 0.75kg weight gain per kg of fresh larvae, adding about 2 yuan in profit. Chickens in the fly-fed group reached maturity 28 days earlier than the control group, with both egg quantity and average egg weight significantly higher.
Feeding American frog larvae with fly larvae showed similar growth and survival rates as the Tenebrio group. After one month of hatching, young larvae gained an average of 4.53g, with a 160.27% weight gain rate. Those fed with egg yolk gained 1.2g per kg, a 42.61% increase, with the former being 3.8 times more efficient.
Feeding shrimp with fly maggots also proved beneficial, resulting in healthier and more disease-resistant shrimp. For further details, contact Mr. Yuan at the provided phone number.
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