Feather pecking and cannibalism are chronic and stubborn diseases in poultry industry. Many factors influence feather pecking such as the animal itself and the nutrition, the environment, the management. This article analysed the causes of feather pecking in various ways, it is concluded that feather pecking is a behaviour revolution. Any methods which can attract the hens＇ attention can be useful methods to prevent feather pecking. And if we program the diet according NRC, there will be no more feather pecking. The problem will...
