DISEASES OF FARM ANIMALS 263 



the disturbance is associated with digestion. Such 

 patients like to lie around and take very little exer- 

 cise. The disease is more common where one kind 

 of food like corn is fed. The old common method 

 was to cut off the ear. The common practice now 

 is to give a purgative so as to relieve the stomach 

 and bowels of accumulated material. The food 

 should be changed and from i to 2 tablespoonfuls of 

 Epsom salts should be given. The jerking move- 

 ment of the muscles may be relieved or stopped 

 by using laudanum, say, four drops to I or 2 tea- 

 spoonfuls of aromatic spirits of ammonia in a half 

 pint of water. 



TICK FEVER.— See Texas Fever. 



TRICHINOSIS. — A disease caused by the tri- 

 china, a minute worm that affects people, hogs and 

 rats. People become affected with the disease from 

 raw or partly cooked pork. These worms are 

 killed by thorough cooking or by the process of hot 

 pickling and curing meat products. 



Hogs become affected through eating offal and 

 rats about the slaughterhouses. Hogs that are 

 fed on green grass and other wholesome food, free 

 from these minute worms, are less likely to have 

 trichinse embedded in their flesh and muscles. Hogs 

 do not seem to be bothered with the trichinae, 

 but people suffer very severely, as both soreness in 

 the muscles and fever result. 



A few days after eating the trichinae, the worms 

 multiply very rapidly in the digestive tract, from 

 which they migrate to other parts of the body and 

 work their way through the tissues. There is no 

 remedy in way of treatment when affected. Pre- 

 vention is the one cure. Inasmuch as five to ten 

 per cent of hogs are affected, it is advisable that all 



