Effects of dietary menadione on the activity of antioxidant enzymes in abalone, Haliotis discus hannai Ino |
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Authors: | Jinghua Fu Wei Xu Kangsen Mai Wenbing Zhang Xiuni Feng Zhiguo Liufu |
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Institution: | 1. The Key Laboratory of Mariculture (Education Ministry of China), Ocean University of China, Qingdao, 266003, China 2. College of Animal Science, South China Agricultural University, Guangzhou, 510642, China 3. Ocean and Fishery Bureau, Jiaozhou, 266300, China
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Abstract: | A 240-day growth experiment in a re-circulating water system was conducted to investigate the effects of dietary menadione
on the growth and antioxidant responses of abalone Haliotis discus hannai Ino. Triplicate groups of juvenile abalone (initial weight: 1.19 ± 0.01 g; shell length: 19.23 ± 0.01 mm) were fed to satiation
with 3 semi-purified diets containing 0, 10, and 1 000 mg menadione sodium bisulfite (MSB)/kg, respectively. Results show
that there were no significant differences in the rate of weight gain or in the daily increment in shell length of abalone
among different treatments. Activities of superoxide dismutase (SOD), glutathione peroxidase (GPX), glutathione S-transferase
(GST) and glutathione reductase (GR) in viscera were significantly decreased with dietary menadione. However, activities of
these enzymes except for GPX in muscle were increased. Therefore, antioxidant responses of abalone were increased in muscle
and decreased in viscera by dietary menadione. |
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Keywords: | menadione antioxidant enzymes Haliotis discus hannai mollusc |
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