This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).This paper has been retracted at the request of the Editor due to very significant similarity between it and two other published articles and the suspected duplication of data. Below are the two articles:1. Vimal et al., Aquacuture 358-359, 14–22, 2012: http://www.sciencedirect.com/science/article/pii/S00448486120036512. Venkatesan et al., J Biochem Molecular Toxicology 27: 406–411, 2013 http://onlinelibrary.wiley.com/doi/10.1002/jbt.21502/full