Global Advanced Research Journal of Agricultural Science (GARJAS) ISSN: 2315-5094

May 2014 Vol. 3(5): pp. 119-127

Copyright © 2014 Global Advanced Research Journals

 

Full Length Research Paper

Growth and antioxidant activity of juvenile oriental river prawn Macrobrachium nipponense, fed diets containing different copper levels under nitrite exposure

Youqin Kong1,2, Liqiao Chen1*, Erchao Li1, Zhenyu Du1, Zhili Ding1,2

 

School of Life Sciences, East China Normal University, Shanghai 200062, PR China

2 Department of Life Sciences, Huzhou Teachers College, Huzhou, Zhejiang 313000, PR China

*Corresponding Author’s Email: lqchen@bio.ecnu.edu.cn

 Tel./fax: +86 21 62233637

Accepted 12 May, 2014

 

Abstract

The present study investigated the effect of dietary copper on alleviation the nitrite stress on the juvenile oriental river prawn, Macrobrachium nipponense. Under two levels of nitrite (low nitrite: 0.01 mg/L; high nitrite: 1.90 mg/L), four semi-purified diets with graded levels of copper (0, 30, 60 and 180 mg/kg diet) as CuSO4⋅5H2O were fed to juvenile prawn (initial weight 0.103 ± 0.003 g) for 8 weeks. Growth and antioxidant ability of prawns with low nitrite were higher than those of prawns with high nitrite. Prawns fed with Cu of 30 and 60 mg/kg diet had significantly higher weigh gain, specific growth rate and antioxidant enzymes (T-AOC, Cu-Zn SOD and GPx) activities than those prawns fed diets with copper deficiency and excess regardless of nitrite level (P < 0.05). MDA was the highest in prawns fed diets supplemented with 180 mg/kg and the lowest in 30 mg/kg group (P < 0.05) regardless of nitrite level. The present study indicated that nitrite stress could inhibit growth and antioxidant ability in prawn, but supplemented Cu of 30-60 mg/kg diet could alleviate these adverse effects of nitrite.

Keywords: Macrobrachium nipponense, copper, nitrite, growth, antioxidant activity.

 

 

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