Main technical measures for mixed culture of fish and soft-shelled turtle

First, the pond reconstruction in the pond around the construction of 30 cm high anti-escape wall, the four corners are arc-shaped, the inner wall is smooth with cement, the top of the wall had better have "factory" shape edge to prevent the old turtle from escaping. A bamboo raft is set up in the fish pond as a drying table for the old soft-shelled turtle to bask in its back, and there is no need for additional necessary equipment such as a food table.

Second, filter-feeding fish, omnivorous fish and herbivorous fish that feed on plankton reasonably can be mixed with old soft-shelled turtles in the same pond, but herring should not be put in fish-turtle mixed culture ponds.

3. If the reasonable stocking density of the old soft-shelled turtle is based on the use of natural biological bait in the pond, we can appropriately increase some animal bait such as snail clam and clam meat, and 100 soft-shelled turtle species of 200 million 250 grams per mu of water can be stocked, and 20 million 40 kilograms of commercial soft-shelled turtle can be produced. If it is mainly fed with soft-shelled turtle feed, 350 soft-shelled turtles of 250 grams per mu of water will be stocked, and 100 and 150 kilograms of commercial soft-shelled turtles can be produced.

4. To strengthen the feeding management in the daily culture management, the corresponding management measures should be taken according to the biological characteristics of the old soft-shelled turtle, combined with the biological characteristics of the mixed species. For example, the old soft-shelled turtle is happy and afraid of fear. In order to promote the feeding and growth of the old soft-shelled turtle, we should keep the surrounding environment quiet, especially to reduce the number of pulling nets.