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Effect of methomyl on water quality, growth performance and antioxidant system in liver of GIFT (Oreochromis niloticus) in the presence of peppermint (Mentha haplocalyx Briq.) as a floating bed

文献类型： 外文期刊

作者： Jing, Xiaojun 1 ; Liu, Tingyan 2 ; Fateh, Benkhelifa 2 ; Chen, Jiazhang 1 ; Zheng, Yao 1 ; Xu, Gangchun 1 ;

作者机构： 1.Chinese Acad Fishery Sci CAFS, Freshwater Fisheries Res Ctr FFRC, Key Lab Integrated Rice Fish Farming Ecol, Minist Agr & Rural Affairs, 9 Shanshui East Rd, Wuxi 214081, Jiangsu, Peoples R China

2.Nanjing Agr Univ, Wuxi Fishery Coll, 9 Shanshui East Rd, Wuxi 214081, Jiangsu, Peoples R China

关键词： Methomyl; antioxidant; peppermint; growth retardation; wastewater

期刊名称：SCIENCE PROGRESS （ 影响因子：1.512； 五年影响因子：2.051 ）

ISSN： 0036-8504

年卷期： 2022 年 105 卷 3 期

页码：

收录情况： SCI

摘要： This study was conducted to investigate the effect of methomyl (MET) on water quality, growth and antioxidant system of genetically improved farmed tilapia (GIFT, Oreochromis niloticus) in the presence of peppermint as a floating bed. The concentration of NH3-N, NO2--N, NO3--N and TP in T-3 (with 200 g wet peppermint) was significantly lower (P < 0.05) than that in T-2 (100 g), T-1 (50 g) and control, and the nutrient removal rates were 61.90%, 31.59%, 59.86% and 45.92% in 20 days, respectively. Juveniles GIFT (5.1 +/- 0.2 g) were exposed to sub-lethal concentrations of 0.2, 2.0, 20 and 200 mu g/L of MET for 45 days. After 6 weeks of a feeding trial, percentage weight gain (PWG), specific growth rate (SGR) and feed conversion ratio (FCR) were significantly decreased in 0.2, 2.0, 20 mu g/L MET groups respectively and increased in the 200 mu g/L MET group. Compared with the control, no significant changes in superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) were detected in the 0.2 mu g/L group. The significant increase in activities of SOD, CAT and GPx was accompanied by a diminution in reduced glutathione (GSH) levels resulting with tilapia exposed to 2.0, 20, or 200 mu g/L for 45 days. The highest rates observed in SOD, CAT, GPx were 157.63%, 164.05% and 167.46% of the control respectively, and the lowest inhibition rate in GSH was 66.42% of the control. Peppermint as a floating bed can alleviate the adverse effects of MET, such as growth retardation and oxidative stress.

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