1. Department of Pharmacology, Riga Stradins University, Riga, LV-1007, Latvia.
2. Clinical Institute, Faculty of Veterinary Medicine, University of Life Sciences and Technologies, Jelgava, LV-3001, Latvia.
3. Department of Pharmaceutical Chemistry, Riga Stradins University, Riga, LV-1007, Latvia.
4. Department of Veterinary Sciences, University of Pisa, Pisa 56126, Italy.