贵州农业科学2025，Vol.53Issue(5)：57-65,9.DOI:10.3969/j.issn.1001-3601.2025.05.008
3种水产消毒剂对金边鲤幼鱼的急性毒性
Acute Toxicity of Three Disinfectants to Juvenile Cyprinus carpio var.jinbian
摘要
Abstract
[Objective]The tolerance of juvenile Cyprinus carpio var.jinbian to commonly used aquaculture disinfectants was determined to provide a basis for safe application during breeding and cultivation.[Method]A static aquatic acute toxicity test was conducted under conditions of water temperature(23±0.5)℃,pH(7.42±0.31),and dissolved oxygen＞5 mg/L.The acute toxic effects of three disinfectants of potassium permanganate(KMnO4),povidone-iodine(PVP-I)and bromochlorodimethylhydantoin(BCDMH)on juvenile C.carpio var.jinbian were evaluated.[Result]Full mortality(100％)occurred at concentrations of 6.00 mg/L KMnO4,40.00 mg/L PVP-I,and 10.00 mg/L BCDMH within 24 h.No significant mortality was observed at concentrations ≤1.73 mg/L KMnO4,≤15.87 mg/L PVP-I,and ≤2.15 mg/L BCDMH within 96 h.Under the same survival duration,concentration followed as PVP-I＞BCDMH＞KMnO4.Median lethal concentrations at 24 h,48 h,72 h,96 h followed as PVP-I＞BCDMH＞KMnO4.96 h LC50 of PVP-I,BCDMH and KMnO4 was 20.92 mg/L,4.62 mg/L and 1.96 mg/L,respectively,and safe concentrations were 2.09 mg/L,0.46 mg/L and 0.20 mg/L.The toxicity to juvenile C.carpio var.jinbian ranked KMnO4＞BCDMH＞PVP-I.[Conclusion]Combined with toxic substance classification criteria,KMnO4 and BCDMH are moderately toxic,while PVP-I is low-toxicity.PVP-I is the most suitable disinfectant for juvenile C.carpio var.jinbian.关键词
水产消毒剂/金边鲤幼鱼/急性毒性/半致死质量浓度/安全质量浓度/聚维酮碘/溴氯海因/高锰酸钾Key words
disinfectants/juvenile C.carpio var.jinbian/acute toxicity/semi-lethal mass concentration/safety mass concentration/povidone-iodine(PVP-I)/bromochlorodimethylhydantoin(BCDMH)/potassium permanganate(KMnO4)分类
农业科技引用本文复制引用
卢玉典,刘康,黄卫杰,韦玲静,文衍红,张桂姣,莫飞龙,张盛,叶香尘..3种水产消毒剂对金边鲤幼鱼的急性毒性[J].贵州农业科学,2025,53(5):57-65,9.基金项目
广西重点研发计划项目"金边鲤种质创新与开发利用"(桂科AB23026025) （桂科AB23026025）
2022年广西农业科技自筹经费项目"广西地方优异水产种质资源规模化发掘与创新利用"(Z202259) （Z202259）
