It's good that you think about it this way. Fly maggots can only replace the main protein ingredients such as fish meal in chicken feed (thereby greatly reducing the cost of compound feed), accounting for only about 20%, and cannot replace all compound feed ingredients. Raising chickens with fly maggots does have a commercial propaganda component. But I have to tell you one thing, the conversion ratio of pig manure to fly maggots is generally 10:1. Therefore, 1 ton of manure can be converted into 100 kg (200 jin) of fresh maggots. Explanation: The conversion rate of manure to fly maggots is also affected by breeding technology. Many people cannot reach this level not only because the manure is not nutritious, but also because a large amount of manure is not effectively utilized. The reason why the conclusion is so different from yours is that the key is whether your conclusion of "the N content in animal feces is 0.95-0.78g per kilogram" is scientific. For example, the protein content of cow feces is very different from that of sheep feces. As the saying goes, "one drop of sheep urine equals one spoon of cow feces"; the chicken's intestine is too short, so the protein content of feces is very high. But this chicken comes from a breeding farm, so it is worse. Because they eat compound feed, the daily protein required is configured "meticulously". Similarly, pigs in large-scale farms eat compound feed, and the amount of protein digested is very large, so the conversion rate is worse. Can you check the source or premise of your data? It would be best to have direct data on the protein content of pig manure. Fly maggot chickens are often used for branding purposes. For example, maggot chickens, maggot eggs, etc. Apart from traditional farming methods, using local cheap feed to raise chickens at low cost is a more effective way. If you need to build a brand in this regard, you can consider using brands such as "antibiotic-free" chickens and antibiotic-free eggs. Your statement that 1 ton of pig manure produces 1.5 kg of dry fly maggots, or about 6 kg of fresh fly maggots, is just a theoretical estimate and has no practical significance. That makes sense. I have been engaged in and researching the use of livestock manure to raise fly maggots for many years, and the actual output is half of the theoretical data you obtained. I hope to have more exchanges in the future. Unrealistic |
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