Funding for this research was provided by:
Berufsgenossenschaft Nahrungsmittel und Gastgewerbe, Erfurt
Received: 26 October 2016
Accepted: 3 May 2018
First Online: 13 June 2018
: All dogs belonged to the Beagle population of the Small Animal Clinic of the University of Veterinary Medicine Hannover (Germany). The experiments were carried out in accordance with the German Animal Welfare guidelines and approved by the Ethical committee of the State of Lower Saxony, Germany (12/0717; 2012–12-04).
: The authors declare that they have no competing interests.
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