关键词: 应激, 猪, 危害, 防控

Abstract: With the increasing of pig industry scale in China，the risk of various stress pathogenic factors is serious to host health. Stress not only leads to the decline of production performance，such as feed intake，daily weight gain，meat quality，and reproduction rate of pigs，but also causes the damage of intestinal mucosal barrier， inflammatory response，and immunosuppression of the host. Consequently，the risk of outbreak of infectious diseases is increased that seriously affects the breeding efficiency and epidemic prevention effect. This paper reviewed the common risk factors in scale pig farm，such as weaning stress，heat stress，immune stress，transportation stress，and pre ? slaughter stress. We focused on the causes，hazards，pathogenesis and prevention and control techniques of various stress，so as to provide basis for the control of stress?induced disease.

Key words: Stress, Pig, Detriment, Prevention and control