Cloudy air sacs. Lesion in trachea, bronchi. Tylosin phosphate and high levels of certain other antibiotics in feed or water. Buy Mycoplasma gallisepticum free hatching eggs or chicks and prevent contact with infected chickens. Occurs after layers reach peak production.
Mortality is high.
Massive fat deposits are found among intestines, gizzard, and kidneys, and the liver shows extreme infiltration of fat. Hemorrhages beneath the liver capsule or in body cavity. Treatment with high levels of vitamins has been used with varying success. From publication PS-5, Florida Cooperative Extension Service.