DISEASES AND PESTS OF FOWLS 
ANEMIA, OR GOING LIGHT 
A condition that should incite the poultryman to investigate 
the cause 
Symptoms. Birds lose weight, or “go 
light,” without any apparent reason. 
Cause. A general lack of thriftiness in 
the flock may be due to insufficient or poor 
food, to lack of exercise, or to bad ventilation 
of houses; lice or mites may be infesting the 
birds. On the other hand, birds may gradu- 
ally lose weight as the result of some such 
disease as tuberculosis (see page go, as- 
pergillosis (see page 29), or worms (see 
page 94). 
Treatment. Make any changes in feed- 
ing or management that may appear desir- 
able. Search at night for mites or lice on 
the birds; in the daytime examine the 
straw in nest boxes, the roosts, and the 
cracks and crevices of the woodwork for 
parasites. Much time may often be saved 
in discovering what is wrong with the flock 
by killing one or more of the affected birds 
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