Funding for this research was provided by:
Inland Fisheries Institute
Article History
Received: 15 January 2019
Accepted: 25 February 2019
First Online: 7 March 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All applicable international, national, and/or institutional guidelines for the care and use of animals were followed by the authors. The study was conducted in accordance with ethical requirements (Resolution of the Local Ethical Committee for Animal Experimentation in Olsztyn, Resolution No. 36/2017 of 30.05.2017).