抄録
In order to utilize local chicken, aggressiveness and behavioral patterns of six breeds of Asian local chicken were studied from eight to 18 weeks of age. Local breeds studied were Hua-Tung, Hsin-Yi, Ju-Chi and Quemoy from Taiwan, Shek-Ki from China and Nagoya from Japan. Important results were as follows : 1. Most (84%) agonistic interactions were caused by male's aggression ; 2. Most agonistic interactions occurred between birds of the same sex ; 3. The heaviest Chinese ‘Three-Yellow’ breed, Shek-Ki, and the Taiwanese game bird, Hua-Tung, had the highest frequency of agonistic interaction ; 4. Aggressiveness made Shek-Ki to have the fastest feeding speed, the least crouching time, and the highest frequency of stand⁄walking activity ; 5. Quemoy, the smallest and the purest' breed, had the slowest feeding speed and the highest frequency of ground-scratching activity. Implications of these findings on the management of local chickens were also discussed.
