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Article

Nitrite Stress Induces Oxidative Stress and Leads to Muscle Quality Decreased in Wuchang Bream (Megalobrama amblycephala Yih) Juveniles

1
Hubei Provincial Engineering Laboratory for Pond Aquaculture, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, College of Fisheries, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
2
Key Laboratory of Freshwater Animal Breeding, Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, College of Fisheries, Huazhong Agricultural University, Ministry of Agriculture, No. 1 Shizishan Street Hongshan District, Wuhan 430070, China
*
Author to whom correspondence should be addressed.
Academic Editor: José Luis Sánchez-Lizaso
Water 2022, 14(2), 160; https://doi.org/10.3390/w14020160
Received: 15 November 2021 / Revised: 30 December 2021 / Accepted: 5 January 2022 / Published: 8 January 2022
(This article belongs to the Special Issue Effect of Aquatic Environment on Fish Ecology)
To determine the effects of nitrite exposure on muscle quality and physiological functions in Wuchang bream (Megalobrama amblycephala), we exposed M. amblycephala juveniles to acute nitrite (0, 1, 5, 10, 20 mg/L), and the muscle and blood samples were measured at 12, 24, 48, and 96 h. The results showed that when exposed to nitrite for 12 h, the concentrations of blood glucose, cortisol, aspartate aminotransferase (AST), and alanine aminotransferase (ALT) in the 20 mg/L experimental group had the maximum value. The activity of lactate dehydrogenase (LDH) increased significantly in a dose-dependently manner and peaked at 96 h in the 20 mg/L group. During 96 h of exposure to nitrite, the total antioxidant capacity (T-AOC) and catalase (CAT) activity in the liver of the 20 mg/L experimental group were significantly higher than those of the control group, while the concentration of muscle glycogen showed a downtrend. At 12 h and 96 h, the hardness of the four experimental groups were significantly higher than that of the control group. Our research shows that acute sodium nitrite exposure will not only cause oxidative stress and decreased muscle quality in M. amblycephala juveniles but also will be accompanied by changes in serum biochemical index, liver antioxidant capacity, muscle physiological characteristics, and muscle physical characteristics. Preliminary speculation may be that acute nitrite exposure may cause M. amblycephala juveniles to choose to reduce muscle quality and activate antioxidant systems. View Full-Text
Keywords: Wuchang bream (M. amblycephala); nitrite; antioxidant; muscle quality Wuchang bream (M. amblycephala); nitrite; antioxidant; muscle quality
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MDPI and ACS Style

Hu, Z.; Qi, C.; Lin, C.; Tang, R. Nitrite Stress Induces Oxidative Stress and Leads to Muscle Quality Decreased in Wuchang Bream (Megalobrama amblycephala Yih) Juveniles. Water 2022, 14, 160. https://doi.org/10.3390/w14020160

AMA Style

Hu Z, Qi C, Lin C, Tang R. Nitrite Stress Induces Oxidative Stress and Leads to Muscle Quality Decreased in Wuchang Bream (Megalobrama amblycephala Yih) Juveniles. Water. 2022; 14(2):160. https://doi.org/10.3390/w14020160

Chicago/Turabian Style

Hu, Zhenyi, Chenglong Qi, Chenzhi Lin, and Rong Tang. 2022. "Nitrite Stress Induces Oxidative Stress and Leads to Muscle Quality Decreased in Wuchang Bream (Megalobrama amblycephala Yih) Juveniles" Water 14, no. 2: 160. https://doi.org/10.3390/w14020160

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