Try to choose clay as a crayfish pond. Do not choose a pond with sand and cement slope protection, which is not conducive to crayfish digging. Sand holes are easy to collapse, and cement slope protection cannot make holes. This is determined by the "burrowing ability" in the biological characteristics of crayfish.

2. Shrimp pond excavation: There are currently two modes of crayfish farming: shrimp-rice farming and intensive pond farming. Different farming modes require different pond excavations.

Excavation method of shrimp rice pond

Dig a circular trench with a trench width of 6-8 meters, a trench bottom width of 2-3 meters, a trench depth of 1-1.2 meters, and a slope of 1:3 , that is, a 1-meter-high slope and a 3-meter slope, leaving a small platform 1 meter wide to facilitate future shrimp operations. In addition, an inner bank needs to be built, with a height of 20-30 centimeters, to facilitate the separation of rice planting and shrimp farming in the future, so that the water bodies do not pollute each other.

If the shrimp-rice pond is relatively large, then we need to dig a "well" or "field"-shaped ditch in the middle of the field to encourage the shrimp to dig holes. This is the excavation mode of the shrimp-rice pond.

Wrong approach: When digging ponds, many farmers don’t know how to dig them. They just listen to other people’s instructions, or go to Qianjiang or Jianli in Hubei Province to have a look, and then dig it themselves when they come back. It's like digging "trenches" for fighting, so how do you raise shrimps?

Intensive pond excavation method

Flat bottom, slope length 3-4 meters, slope height 1.5 meters, add a pond root every 30-40 meters wide, the benefits of adding pond stems : 1. More shrimp seedlings will appear in the coming year. The shrimps will make more holes and more seedlings will emerge. 2. When shrimps are hypoxic, it can temporarily save their lives and the shrimp pond can grow indefinitely.

Wrong approach: Many farmers have seen others making money by raising shrimps. They are originally fish farmers. They just bring the fish ponds and raise shrimps. The pond has no slope at all, a 90-degree right angle, and the walls are flying. , how to raise shrimp? How do shrimps make holes?

Details that need attention: After the shrimp pond is excavated, we need to build anti-escaping nets and filters. The outlet of the shrimp pond must be filtered with a dense mesh of about 5 meters (about 40-60 mesh) , to prevent the entry of harmful organisms such as insect eggs and wild fish. Of course, the length of the filter can be adjusted according to the water flow speed.