We adopted the dog vomiting model by Levodopa and the pigeon vomiting model by bluestone and so on, then observed the vomiting times and delitescence,the frequency and range of gastrointestinal motility and the stomach empty.

• 采用左旋多巴导致家犬呕吐和硫酸铜导致家鸽呕吐等模型，观察动物呕吐次数和潜伏期、胃肠运动频率和幅度、胃排空率的变化。