摘要
研究了纳米银对南美白对虾苗的毒性、弧菌的杀灭能力和抑制效果,以及可能导致养殖水体和养殖对虾中的银累积。结果表明,纳米银对南美白对虾苗的96 h半致死浓度(LC50)为推荐使用浓度(0.5 mL/m^(3))的2241.54倍(1120.77 mL/m^(3)),48 h LC50-为推荐使用浓度的5421.70倍(2780.15 mL/m^(3))。相应的安全浓度(SC)(按0.05的应用系数)分别为96 h SC 56.04 mL/m^(3)和48 h SC 135.54 mL/m^(3)。指出,纳米银能够明显杀灭和抑制养殖水体和对虾身体的弧菌,是一种高效的疾病预防药物,但会造成养殖水体银浓度增加,并在对虾体内有一定量的累积。
This paper explored the toxicity of nano silver to white shrimp,capacity of sterilization to vibrion,and potential effects of silver deposition in aquacultural water and shrimp.The 96 h LCso for seed of white shrimp was 1120.77 mL/m^(3)(It was 2241.54 times of the recommendatory practice content,which was 0.5 mL/m).48 h LCso for seed of white shrimp was 2780.15 mL/m^(3)(lt was 5421.70 times of the recommendatory practice content).The safe concentrations(Calculated according to application fact of 0.05)were 96 h SC-56.04 mL/m and 48 h SC-135.54 mL/m².Nano silver could sterilize and suppress the vibrion in cultural water and shrimp.It was a high-performance medicine for preventing of shrimp diseases.Application of nano silver in shrimp culture would lead to increase of silver content in cultural water and a certain amount of silver deposition in shrimp.
作者
孟耀文
黄国强
吴若宁
陆洁
苏兴
钟声平
MENG Yaowen;HUANG Guoqiang;WU Ruoning;LU Jie;SU Xing;ZHONG Shengping(Guangxi University of Chinese Medicine,Nanning,Guangxi 530200,China;Fangchenggang City Jinsha Science and Technology Ltd,Fangchenggang,Guangxi 538000 China;Guangxi Marine Environment Monitoring Center Station,Beihai,Guangxi 536000,China)
出处
《水产养殖》
2024年第1期1-6,共6页
Journal of Aquaculture
基金
防城港市科学研究与技术开发计划项目(AB20014027)。
关键词
南美白对虾
纳米银
对虾养殖
半致死浓度
安全浓度
弧菌
Litopenaeus Vannamei
Nano silver
Shrimp culture
Concentration of half lethal
Safe concen tration
Vibrion
