How can we distinguish a health chicken from a sick,that’s very important to avoid economic losses.Methods:

See feathers:health chicken's feather is light and bright,cockscomb has a florid color,feathers of body is soft and symmetry,has a soft and smooth touch feeling.The sick’s feather is arbitrary,rough,dull,no sense of softness, cockscomb has a wine,dry-white or purple and black color.

See temperature:the normal body temperature of chicken is 41 ~ 43 ℃,acute diseased chickens are often elevated the body temperature,breathing is not steady,heartbeat is irregular and disorder,if suffering from respiratory disease, always opening mouth,sniveling,cough,breathing with noise,and sometimes sneezing,mouth and throat are full of sticky,there is some exudate from the upper respiratory tract and the airbag,swelling of the eyelids and sinus.