A kind of suction type breeding trough,It is a recessed sink inside one groove body of what,And a slot cover is equipped with above what groove body,The side of the slot cover sets an elevating control cylinder,Rise for manipulation slot cover or closed on what groove body to lower cover,An air disinfection filtration system is installed in the outside of what groove body again,The inside of air disinfection filtration system system one ventilation duct of what is equipped with: a UV bactericidal lamp pipe,One filter screen and an exhaust fan form,It is connected above the air intake vent system of the ventilation duct and sink inside groove body,And exhaust fan system installs what ventilation duct bottom end,To form an exhaust outlet； By it,It must close slot cover on what groove body to lower cover,Make to be isolated from the outside inside groove body,And aquaculture can be carried out at steady state,And air disinfection filtration system is utilized,The air of groove body inside is pumped outward,Make to be obtained in slot into negative pressure state,And sterilized,Filter Hou discharge.一種負壓式養殖槽，係於一槽體內部凹設一水槽，並於槽體上方設有一槽蓋，該槽蓋之旁側設一升降控制缸，可供操控槽蓋上升或向下蓋合於槽體之上方，又於槽體之外部裝設一空氣殺菌過濾系統，該空氣殺菌過濾系統係於一通風管之內部設有：一UV殺菌燈管、一過濾網及一抽風機而成，該通風管之入風口係與槽體內部水槽上方相連通，且抽風機係裝設於通風管底端，以形成一排風口；藉之，其得將槽蓋向下蓋合於槽體之上方，使槽體內部與外界隔離，而可在穩定狀態下進行水產養殖，並利用空氣殺菌過濾系統，將槽體內部之空氣向外抽送，使槽內得成負壓狀態，且經殺菌、過濾後排出。
