Regurgitation is abrupt halt, dribble and white bubble, send asthma subsequently, heart sounds is sonorous, temperature is elevatory, spirit is exceeding depressed, later gradually answer constant.

• 反刍忽然停顿,流口水和白色泡沫,随之发喘,心音洪亮,体温升高,精神极度沉郁,以后渐复常。犯病次数夏秋多于冬春。