The specific factors that cause chicken fatty liver syndrome mainly include the following aspects: ① The proportion of corn and other grains in the diet is too large, and there are too many carbohydrates, while protein, especially the animal protein rich in methionine, choline and crude fiber are relatively insufficient, which is out of balance, resulting in the accumulation of some fat produced by excess energy in liver cells. ② When the chickens are well nourished and the egg production rate is at the peak, the egg production suddenly drops greatly due to insufficient light, insufficient drinking water and other stress factors, so the excess nutrition turns into fat accumulation. ③ Chickens are well nourished and lack of exercise, which leads to obesity and makes them accumulate fat in liver cells. Cage chickens are more prone to this disease because of lack of exercise. ④ The feed is moldy and contains a lot of aflatoxin, which will cause fatty degeneration of the liver and lead to the disease.
Pathogenic chickens are of little therapeutic value and should be eliminated in time. Chickens with no symptoms should be fed a low-energy diet, the content of corn should be appropriately reduced, and high-quality fish meal should be increased. Improve the contents of methionine, choline, vitamins, biotin, vitamin B 1 and other components. Feed restriction can be appropriate, generally 8% ~10% according to the normal intake, the feed restriction should be small before the egg laying peak, and it can be larger after the peak. Adding 5% alfalfa powder and 20% bran is helpful to prevent this disease.