POULTRY DISEASES AND THEIR TREATMENT 
cases, pierce the egg and withdraw the con- 
tents, then break the shell and remove all 
the pieces. Great care must be taken to 
leave no particle of the broken shell behind. 
EGG-EATING 
A bad habit that may be controlled 
Symptoms. If remains of eggs are seen 
in nests or runs, the poultryman should be- 
come suspicious and make observations to 
prove whether any of his flock are eating 
eggs. 
Cause. Broken eggs or soft-shelled eggs 
left about the yard may be the cause of hens 
acquiring this bad habit. . 
Treatment. All signs of broken eggs 
should always be immediately removed. 
The culprit, when detected, should be re- 
moved to a different pen and nest. Dark 
nests have been recommended. A trap nest 
will prevent a hen from getting at her egg. 
EMPHYSEMA (AIR UNDER SKIN) 
Not a common disease of chickens 
Symptoms. In this disease of chickens 
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