Received: 17 September 2018
Accepted: 1 November 2018
First Online: 14 November 2018
: All applicable international, national, and institutional guidelines for the care and use of animals were followed. All procedures performed in this study involving the fish <i>Oreochromis niloticus</i> were in accordance with the ethical standards of the University of Ilorin, Ilorin, Nigeria, where the study was conducted and who granted the ethical approval for the conduct of the research.
: Not applicable
: The authors declare that they have no competing interests.
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