Hradec, Michal http://orcid.org/0000-0002-0961-9921
Illmann, Gudrun http://orcid.org/0000-0001-7858-7516
Bolechová, Petra http://orcid.org/0000-0001-9007-1213
Funding for this research was provided by:
Ministry of Agriculture of the Czech Republic (MZE-RO0719)
Article History
Received: 9 June 2020
Accepted: 11 October 2020
First Online: 24 October 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All applicable international and institutional guidelines for the care and use of animals were followed. The zoological institutions in which the animals in this study live maintain rigorous standards of animal welfare and are accredited by the European Association of Zoos and Aquaria and the Union of Czech and Slovak Zoos. This study was approved by the Ethics and Animal Care Committee of the Czech University of Life Sciences Prague (protocol no. CZU/1606) and was fully non-invasive. This study fully complied with the legal requirements of the Czech Republic and the Slovak Republic, as well as those stipulated by European Directive 2010/63/EU.