1. Poultry Products Quality Control, 125-7 Daiwa Dakeonsen, Nihonmatsu-shi, Fukushima 964-0062, Japan
2. Division of Veterinary Science, Graduate School of Life and Biosciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano, Osaka 598-8531, Japan
3. Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of the Philippines Los Baños, College, Laguna 4031, Philippines