Received: 1 April 2020
Accepted: 22 June 2020
First Online: 9 July 2020
Ethics approval and consent to participate
: The project was presented and validated by the scientific committee of the Department of Animal Biology, University of Dschang, which follows the internationally accepted standard ethical guidelines for laboratory animal use and care as described in the European Economic Community guidelines; EEC. 2010 Council Directive 2010/63/EU of 22 November 2010 [CitationRef removed].
: Not applicable.
: The authors declare that they have no competing interests.