340 BUILDINGS, SANITATION, AND DISEASES 
den contractions of the diaphragm at irregular intervals. The 
contractions or spasms of the diaphragm cause a jerking move- 
ment of the flank, which is a characteristic avmptom of the 
disease. The pig becomes unthrifty and stunted, and very 
young pigs are likely to succumb or to become practically 
worthless. 
Too liberal a supply of feed and too little exercise will 
often bring on the trouble. Young pigs often contract the 
disease before they are weaned if they have a good mother and 
are not given much excreise. and it is usually the finest and 
fattest pig in the litter which is the first to go wrong. 
Treatment is mainly preventive, and hence the necessity 
for providing exercise for young pigs, especially if their mother 
is a liberal milker and the pigs become very fat. Judicious 
feeding and exercise will entirely prevent the disease. If a 
case occurs, it is a signal that a change in methods should be 
made at once. Sometimes it is difheult to obtain exercise for 
young pigs in cold weather, and some recommend shutting them 
in a pen away from the mother for an hour or so twice a day. 
As a rule, this plan will stimulate the laziest of them to take 
considerable exercise. 
INFLAMMATION OF THE UDDER. 
Heavy milkers are most liable to have this trouble. Whatever 
the cause, the disease calls for prompt treatment. Dr. R. A. 
Craig, in his excellent book, ‘* Diseases of Swine,” recommends 
the following treatment: 
“ Milking the sow’s udder two or three times a day will 
usually relieve its congested condition. A physic of Epsom 
salts should be given every other day, and a sloppy diet fed. 
In case the udder becomes inflamed, it should be kneaded 
gently with the fingers, and the following ointment applied 
daily: Extract of belladonna and gum camphor (one dram of 
