DISEASES OF FARM ANIMALS I31 



kicks or bruises. In the early stage, use 2 table- 

 spoonfuls of lead acetate in a quart of water and 

 bathe the injured part. When there is no longer 

 any temperature, apply a blister composed of i 

 teaspoonful of biniodide of mercury and 6 table- 

 spoonfuls of lard. Apply this every week or ten 

 days for several months. 



CAPPED KNEE.— An enlarged condition of the 

 knee most commonly found in cattle. It is caused 

 by cattle getting up and down on hard floors. It 

 is usually seen in stables where stanchions are 

 used. A baggy tumor forms at the front and just 

 below the knee. In some instances this tumor be- 

 comes very large and the cow walks about or 

 moves with great difficulty. Where hard floors are 

 covered with bedding, no trouble of this kind re- 

 sults. Applications of hot water are excellent. 

 Liniment is also very good. Where the tumor has 

 long existed and is stubborn an opening should be 

 made at the bottom so that the fluid may be dis- 

 charged. A little tincture of iodine injected into 

 the opening once a day is good and at the same 

 time an application of iodine rubbed over the out- 

 side will assist in reducing the trouble. Use one 

 part of iodine to eight parts of lard and continue this 

 treatment for a month or two. 



CASTRATION.— The removal of the testicles 

 from male animals. Castration is practiced upon 

 all the domestic animals. Only those male animals 

 possessing desirable characteristics are retained en- 

 tire. The operations are generally performed when 

 the male animals become troublesome. In horses 

 the time is usually at two or three years old ; in cattle 

 two or three months old; sheep at two to four 

 months and pigs three to four months old. Dogs, 



