1. Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Neipu, Pingtung 912, Taiwan, ROC
2. Division of Animal Medicine, Animal Technology Institute Taiwan, Chunan, Miaoli 350, Taiwan, ROC
3. Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Takun, Taichung 406, Taiwan, ROC