1. Department of Pharmacology; Faculty of Veterinary Medicine; Kasetsart University; Bangkok Thailand
2. Faculty of Natural Resources and Agro-industry, Chalermphrakiat, Sakon Nakhon Province Campus; Kasetsart University; Sakon Nakhon Thailand
3. Faculty of Veterinary Technology; Kasetsart University; Bangkok Thailand
4. Department of Veterinary Sciences; University of Pisa; San Piero a Grado Italy