According to the different ecological characteristics of different breeds, polyculture of different breeds is of positive significance to improve the ecological environment, maintain the stability of water quality and prevent diseases. There are five main ways: polyculture of shrimp and fish, polyculture of shrimp and crab, polyculture of shrimp and shellfish, polyculture of shrimp and ginseng, polyculture of shrimp and algae. Fish species that can be mixed with Penaeus vannamei are tilapia, barracuda, herring, puffer fish, black snapper, yellow-finned snapper and sand pond snakehead. Crabs include Scylla serrata and Portunus trituberculatus; The species of shellfish include scallop, oyster, oogway, SINONOVACULA constricta, Meretrix meretrix, Scapharca subcrenata and Clam variegata. Algae include Gracilaria, Ulva and Sargassum. (2) Rotation

There are shrimp-fish rotation and rotation of different shrimp species:

① Rotation mode of shrimp and fish: It is mainly aimed at some aging ponds with difficult drainage and thick sediment, which is of positive significance for improving the bottom environment and preventing diseases.

② Rotation culture of different prawn species: rotation culture is mainly carried out according to the characteristics of breeding season. Usually there are rotation feeding of Penaeus vannamei and Penaeus monodon, rotation feeding of Penaeus vannamei and Penaeus japonicus, etc.