1. Department
of Animal Science and Technology, National Taiwan University, Taipei 106, Taiwan
2. Department
of Optometry, Asia University, Taichung 413, Taiwan
3. Department
of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan
4. School
of Veterinary Medicine, National Taiwan University, Taipei 106, Taiwan
5. Poultry
Industry Section, Department of Animal Industry, Council of Agriculture, Executive Yuan, Taipei 100, Taiwan