Symptoms and Prevention and Treatment of Aspergillosis in Silkie Chickens

Aspergillosis in Silkie chickens is a fungal infectious disease caused by molds such as Aspergillus fumigatus and Aspergillus flavus. It mainly attacks the respiratory system, so it is also often called aspergillus pneumonia. The disease can occur in Silkie chickens of all ages, but chicks shortly after hatching are the most susceptible, and the onset is often fairly acute. If not dealt with promptly, it can easily cause considerable losses.

The pathogenic molds are widely present in nature. Moldy feed, litter, and a damp, stuffy brooding environment are the main sources of infection, and chicks are mostly infected by inhaling mold spores. Affected Silkie chickens often show depression, drooping wings, ruffled feathers, reduced feed intake, rapid breathing or open-mouth gasping, and some sick chickens also develop eye symptoms such as swollen eyelids. On necropsy, yellowish-white or grayish-white nodules can be seen on the lungs and air sacs, which is a relatively typical lesion characteristic of this disease.

The key to preventing aspergillosis in Silkie chickens is to eliminate sources of mold. In farming, choose dry, fresh litter and replace it promptly; feed should be stored in a ventilated, dry place, and check for clumping and a moldy smell when feeding; the brooding house should maintain reasonable ventilation to avoid a high-temperature, high-humidity environment. Once sick chickens are found, suspected feed and litter should be replaced immediately, affected individuals should be isolated, and antifungal drugs should be used for treatment, while ventilation and disinfection are strengthened to reduce the concentration of mold spores in the environment.

It should be noted that the early symptoms of this disease are similar to those of common respiratory diseases and are easily misdiagnosed. If Silkie chickens show gasping symptoms in groups and medication for respiratory disease is not effective, the possibility of aspergillosis should be considered. In daily management, doing a good job of moisture-proofing and mold-proofing is more economical and effective than treating the disease after it occurs.