Assessment of Nano Zinc Oxide and Nano Copper Oxides' Bactericidal Effect on Some Bacterial Pathogens in Fish and Determination of Their Toxicity Degree in Rainbow trout

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Shiry n.; AKHLAGHI M.

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Paper Information

Journal: JOURNAL OF FISHERIES SCIENCE AND TECHNOLOGY (JFST) Year:2020 | Volume:9 | Issue:1 Page(s): 21-29

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Title

Assessment of Nano Zinc Oxide and Nano Copper Oxides' Bactericidal Effect on Some Bacterial Pathogens in Fish and Determination of Their Toxicity Degree in Rainbow trout

Author(s)

Shiry n. | AKHLAGHI M. | Issue Writer Certificate

Keywords

Nano Copper OxideQ1

Nano Zinc OxideQ1

Minimum Inhibitory ConcentrationQ1

Minimum Bactericidal ConcentrationQ1

Median Lethal ConcentrationQ1

Rainbow troutQ2

Abstract

Aims The present study aims to assess the toxicity of CuO and ZnO nanoparticles (NPs) at laboratory conditions on some pathogenic bacteria for the reared fish, as well as, a bioassay on Rainbow trout. Materials & Methods For this purpose, the sensitivity of some bacteria to the mentioned NPs with a reference antibiotic (florfenicol) was assayed through the well diffusion method, as well as, Minimum Inhibitory Concentration/Minimum Bactericidal Concentration (MIC/MBC) were determined by microdilution technique. On the other hand, the lethal toxicity test has been accomplished to the calculation of Median Lethal Concentration (LC50) on some Rainbow trout (55. 3± 7. 6g) in static condition for the 96 consecutive hours. One-way ANOVA and Probit regression were used in order to data analysis. Findings The results showed that NPs of copper oxide and zinc oxide could significantly inhibit the growth of Streptococcus iniae or kill it at 0. 18 and 0. 24µ g/ml and more, respectively. The comparison between LC50-96h quantities of CuO NP (107. 4µ g/l) and ZnO NP (102. 3µ g/l) indicated that the CuO NP has more toxic potential. Conclusion According to the laboratory findings, the susceptibility of S. iniae and L. garvieae to ZnO NP was close to florfenicol. The mortality in the fish species due to lethal toxicity would occur if the effective concentration of NPs on the bacterial pathogenic agents being used directly.

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APA: Copy

Shiry, n., & AKHLAGHI, M.. (2020). Assessment of Nano Zinc Oxide and Nano Copper Oxides' Bactericidal Effect on Some Bacterial Pathogens in Fish and Determination of Their Toxicity Degree in Rainbow trout. JOURNAL OF FISHERIES SCIENCE AND TECHNOLOGY (JFST), 9(1 ), 21-29. SID. https://sid.ir/paper/369719/en

Vancouver: Copy

Shiry n., AKHLAGHI M.. Assessment of Nano Zinc Oxide and Nano Copper Oxides' Bactericidal Effect on Some Bacterial Pathogens in Fish and Determination of Their Toxicity Degree in Rainbow trout. JOURNAL OF FISHERIES SCIENCE AND TECHNOLOGY (JFST)[Internet]. 2020;9(1 ):21-29. Available from: https://sid.ir/paper/369719/en

IEEE: Copy

n. Shiry, and M. AKHLAGHI, “Assessment of Nano Zinc Oxide and Nano Copper Oxides' Bactericidal Effect on Some Bacterial Pathogens in Fish and Determination of Their Toxicity Degree in Rainbow trout,” JOURNAL OF FISHERIES SCIENCE AND TECHNOLOGY (JFST), vol. 9, no. 1 , pp. 21–29, 2020, [Online]. Available: https://sid.ir/paper/369719/en

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