1. Graduate Students, Bio-Veterinary Science (International Program), Faculty of Veterinary Medicine, Kasetsart University, Chatuchak, Bangkok, Thailand
2. Department of Zoology, Faculty of Science, Kasetsart University, Chatuchak, Bangkok, Thailand
3. Department of Farm Resources and Production Medicine, Faculty of Veterinary Medicine, Kasetsart University, Nakhon Pathom, Thailand
4. Department of Anatomy, Faculty of Veterinary Medicine, Kasetsart University, Chatuchak, Bangkok, Thailand,;
5. Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University, Nakhon Pathom, Thailand