1. profit: the cost of earthworm breeding is low, including land rent, farm construction cost, bait, etc. The cost of earthworm breeding per mu is about 7,000 yuan. The yield of earthworms is higher, and more than 100 kg of earthworms can be cultivated per mu. At the same time, earthworms have many uses, such as bait, feed, organic fertilizer, etc., and can also be used in the pharmaceutical industry, so the price of earthworms is also high, with the price per ton of earthworms reaching more than 10000 yuan and as high as more than 30,000 yuan. Therefore, higher profits can be obtained by breeding earthworms.

2. Market: Earthworms also have a wide market and can be sold in the following ways:

* Fishing gear market sales: There are many people fishing now, and there is a great demand for earthworm as bait. Cultured earthworms can be wholesale to fishing gear shops or directly sold to fishing enthusiasts.

* Farm sales: Earthworms can be sold as a high-protein feed, which is suitable for poultry such as chickens, ducks and geese and aquaculture such as loach and eel. Due to the development of modern agriculture, the demand for organic fertilizers is also increasing, and earthworm and earthworm manure are high-quality organic fertilizers and can be sold as organic fertilizers.

* Environmental protection treatment or use as organic fertilizer: In the field of environmental protection, earthworms can be used to treat urban garbage, industrial waste and pollutants from farms. At the same time, earthworms can also be used as organic fertilizers, which can bring good economic income.

* Sales in pharmaceutical factories: dried earthworm products have high medicinal value and can be sold to pharmaceutical factories as raw materials.

In a word, from the above analysis, we can see that breeding earthworms has a high profit and a wide market, and it is a very promising entrepreneurial project.