The bean cake contains more than 40% crude protein and is one of the important protein feeds for chickens. However, when feeding chickens, they must pay attention to "five avoidances". Otherwise, they will have adverse consequences and reduce the benefits of raising chickens. Avoid raw soybean cake contains trypsin inhibitor and red blood cell agglutinin and other harmful substances, raw nutrition is not only difficult to be fully absorbed and utilized, and the chicken body will also appear diarrhea and other symptoms. Therefore, the use of bean cake to feed chicken must be treated with high temperature before use, and then feed it after curing. Although the crude protein content of the single soybean cake is relatively high, due to the imbalance of the amino acids contained in the protein, the content of some amino acids, especially methionine, is too low. Therefore, the chicken alone cannot meet the growth and production needs of the chicken. Therefore, the use of bean cake to feed chicken must be fed with an appropriate amount of animal protein feed. Avoid the use of bean cake to feed chickens, generally can account for 20% to 30% of the diet, but the feed can no longer be arbitrarily increased, otherwise it will cause chicken protein poisoning, diarrhea, gout and other symptoms. Boil moldy bean cakes are easy to mold in wet conditions. Feeding chickens with moldy bean cakes is prone to Aspergillus poisoning. Avoid water soy cakes are soaked in water, especially in the summer heat season, easily rancid. Feeding chickens with rancid bean cake not only reduces palatability but sometimes causes diarrhea and even death from poisoning. China Agricultural Network Editor