118 DISEASES OF DOMESTICATED BIRDS 
Fra. 12. Deposit of crusts on quills of feathers occurring in favus involving 
feathered areas. (Drawn from photograph by Sabouraud, Suis and 
Suffran ) 
birds, in infected quarters, while there is a tendency to recovery 
when affected birds are isolated. 
Treatment. Isolation of affected birds from the flock and from 
other infected individuals in some cases is sufficient to cause the 
disappearance of the disease. Previous to the application of any 
remedy the affected areas should be softened with soap and warm 
water, after which as much of the deposit as possible should be re- 
moved. The comb lesions may be treated with carbolized vaseline 
or green soap containing five per cent of carbolic acid. A mixture 
of glycerine 6 parts and iodine 1 part has been employed on the comb 
as have salicylic acid ointment (1 : 10); tincture of iodine diluted 
with equal parts or more of alcohol; five per cent formalin ointment 
or solution; and an ointment made of red oxide of mercury 1 part, 
to 8 parts of lard. A 1-500 solution of bichloride of mercury may 
be used among the feathers. 
Prophylaxis. In an infected flock, the closest examination of 
the exposed birds should be made, so that those slightly infected may 
be isolated and treated. Otherwise they will perpetuate the infec- 
tion in the flock. Care should be exercised to prevent the introduc- 
tion of birds from flocks not positively known to be free from the 
disease. In an infected flock, thorough cleaning and disinfection 
of the quarters should be carried out. 
REFERENCES 
1. Balfour. Aspergillary pneumokoniosis in the lung of a turkey. 
Fourth Rep. Wellcome Research Lab., 1911. 
2. Beach and Halnin. Observations on an outbreak of favus. J. Agric. 
Research, Vol 15, 1918, p. 415. 
