Funding for this research was provided by:
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja
Marlo Farma, Belgrade
Text and Data Mining valid from 2019-05-28
Received: 14 January 2019
Accepted: 20 May 2019
First Online: 28 May 2019
Ethics approval and consent to participate
: This study was approved by the Ethical Committee of the Faculty of Veterinary Medicine University of Belgrade and Ministry of Agriculture and Environment in accordance to Serbian law for protection of animal welfare and EU declaration 63/2010 (ref. no. 323-07-04031/2017-05, 10 November 2017). All owners gave their written informed consent for participation in the study.
: Not applicable.
: The authors declare that they have no competing interests.