自从1993年我国海水养殖虾类遭受白斑病毒病危害以来,海水虾类养殖一直处于不稳定的状态。一般虾农抗风险能力差,不贸然在天然海水池塘中单养虾类,而是多品种混养,大大降低了由于病害而绝产的风险。下面介绍虾、蟹、贝混养,四放五收。这种方法混养的品种为三疣梭子蟹、日本对虾和菲律宾蛤仔。 Since 1993, marine shrimp farming in China suffered from white spot virus disease, seawater shrimp farming has been in an unstable state. Generally, shrimp farmers have poor anti-risk ability. Rather than rashly raising shrimp in their natural seawater ponds, they are multi-species polyculture, greatly reducing the risk of being out of wedlock due to diseases. Here are shrimp, crab, shell polyculture, four put five harvest. This method of polyculture breeds Portunus trituberculatus, Japanese shrimp and Philippine clams.