Pugs are a brachycephalic breed .

哈巴狗是短头品种。

Brachycephalic , or broad-headed , dogs that participated included american pit-bull terriers , american bulldogs and bernese mountain dogs .

参赛的短头型，即头部宽的狗有美国比特斗牛梗、美国斗牛犬、伯恩山犬。