3种水产消毒剂对暗纹东方鲀稚鱼的急性毒性试验  

Acute Toxicity of 3 Disinfectants to Postlarval Puffer Fish,Takifugu fasciatus

作　　者：孙侦龙[1] 朱永祥[1] 陈芸燕[1] 刘大勇[1] 郭正龙[1] 

机构地区：[1]江苏中洋集团股份有限公司,江苏南通226600

出　　处：《水产科学》2015年第5期277-281,共5页Fisheries Science

基　　金：国家重大星火计划项目(2012GA690001);江苏省科技支撑计划(农业)项目(DE2013354)

摘　　要：在水温21~23℃,pH 8.20~8.50,溶解氧6.00~7.50mg/L条件下,采用半静水法研究了苯扎溴铵、戊二醛和聚维酮碘对全长（1.73±0.32）cm、体质量（0.19±0.01）g暗纹东方鲀稚鱼的急性毒性效应。试验结果表明,苯扎溴铵对暗纹东方鲀稚鱼24、48、72h和96h半致死质量浓度分别为1.04、0.95、0.72mg/L和0.53mg/L;戊二醛对暗纹东方鲀稚鱼24、48、72h和96h半致死质量浓度分别为4.27、3.55、2.94mg/L和2.40mg/L;聚维酮碘对暗纹东方鲀稚鱼24、48、72h和96h半致死质量浓度分别为269.80、200.00、158.54mg/L和151.09mg/L。苯扎溴铵、戊二醛和聚维酮碘对暗纹东方鲀安全质量浓度分别为0.24、0.74mg/L和32.97mg/L,均高于其厂家推荐使用质量浓度,可以在暗纹东方鲀生产中使用。但暗纹东方鲀对苯扎溴铵和戊二醛较为敏感,在生产过程中应严格控制使用质量浓度。The acute toxicity of benzalkonium bromide,glutaraldehyde and povidone-iodine to postlarval puffer fish（Takifugu fasciatus）with total length of（1.73 ± 0.32）cm and body weight of（0.19 ±0.01）g was studied by 96hsemi-static bioassays under conditions of water temperature of 21—23 ℃,pH8.0—8.5and dissolved oxygen level of 6.00—7.50 mg/L.The results showed that the medium lethal concentrations（LC50）of benzalkonium bromide to the postlarvae were 1.04mg/L for 24 h,0.95mg/L for48 h,0.72mg/L for 72 hand 0.53mg/L for 96h;LC50of glutaraldehyde 4.27mg/L for 24 h,3.55mg/L for 48 h,2.94mg/L for 72 hand 2.40mg/L for 96 hand LC50of povideone-iodine 269.80mg/L for 24 h,200.00mg/L for 48 h,158.54mg/L for 72 hand 151.09mg/L for 96 h.The safe concentration was found to be 0.24 mg/L in benzalkonium bromide,0.74 mg/L in glutaraldehyde and 32.97 mg/L in povidone-iodine,higher than the concentrations recommended by the disinfectant manufacturers,indicating that the 3 disinfectants were suitable for the breeding and aquaculture of the puffer fish.However,the application of benzalkonium bromide and glutaraldehyde was paid more attention due to the fact that the puffer fish postlarvae were sensitive to the disinfectants.

关 键 词：暗纹东方鲀 消毒剂 急性毒性 安全质量浓度 

分 类 号：S965.225[农业科学—水产养殖]