5-8 cm loach seedlings is 500 kg, about 150 per kg, and the total number of seedlings per mu is 75-85,000.

It depends on what kind of culture you use, single culture in cement pond, mixed culture in pond, rice field culture and so on.

Among them, the cement pond has a large amount of single culture, with 30,000 seedlings of 5 cm-8 cm per mu and about 50,000-65,438+10,000 seedlings of 3-4 cm per mu.

Before releasing seedlings, base fertilizer should be applied, mainly organic fertilizer, and a large number of zooplankton should be cultivated as bait for trowels.

Loach seedlings is mainly divided into two kinds of scales, one is splash seedlings, not inch seedlings. Among them, water-sprayed seedlings can generally raise 400,000-500,000 yuan per mu underground, and the cost of seedling source is about10.5 million yuan.