1. Graduate Institute of Veterinary Clinical Science, School of Veterinary Medicine, National Taiwan University, Number 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan, Republic of China
2. Center for General Education, National Tsing Hua University, Number 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan, Republic of China
3. Department of Forestry, National Chiayi University, Number 300 Syuefu Road, Chiayi City 60004, Taiwan, Republic of China
4. Department of Animal Science and Technology, National Taiwan University, Number 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan, Republic of China