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许多养鱼户由单一的养鱼转向鱼和青虾混养 ,以提高经济效益。现将混养青虾注意事项介绍如下。①彻底清塘消毒 ,杀死黑鱼、鲶鱼、沙鳢、黄颡鱼、黄鳝、泥鳅等敌害鱼类。②混养池进出水口排灌要独立 ,进水口用 4 0～ 6 0目筛绢布进行双层过滤 ,以防野杂鱼及其受精卵进入 ;排水口?
Many fish farmers have switched from single fish farming to polyculture of freshwater fish and shrimp to increase economic efficiency. Now polygamy shrimp precautions described below. ① thorough Qing Tong disinfection, kill black fish, catfish, sand flounder, catfish, eel, loach and other predators fish. ② polyculture pool into the outlet irrigation and drainage to be independent, inlet with 40 ~ 60 mesh sieve double-layer filtration to prevent wild trash and their fertilized eggs into; drain?