DISEASES AND PESTS OF FOWLS 
ASPERGILLOSIS 
A disease that exists more commonly than is usually suspected, 
and is the cause of the death of large numbers of 
young chickens 
Symptoms. Fowls gradually lose weight, 
mope, and die without any pronounced ail- 
ment except difficulty in breathing. In 
adults the disease may be mistaken for 
tuberculosis and in chickens for white 
diarrhea. Aspergillosis of chickens is dealt 
with under brooder pneumonia. Post-mor- 
tem symptoms are whitish 
or yellowish growths on the 
windpipe, that can only be 
definitely diagnosed under 
the microscope. 
Cause. A fungoid growth 
in the windpipe and bron- 
chial tubes, sometimes ex- 
tending to the lungs and 
liver. Fig. 8 shows the 
spores and filaments of the 
species of aspergillosis _ | wine 
most commonly responsible —BRa!N_Exrosen 
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