DISEASES OF THE URINARY ORGANS 



CONGESTION AND INFLAMMATION 

 OF THE KIDNEYS 



Causes. — Congestion and inflammation of the 

 kidneys, as a result of an injury, is not uncommon 

 in hogs. Blows and kicks in the region of the back, 

 or injuries resulting from the drove piling up, are 

 among the common causes. Exposure and wet, cold 

 quarters, as in other domestic animals, are frequent 

 causes, but such irritating drugs as turpentine and 

 cantharides, when applied to the skin or given in- 

 ternally, are not as important causes. 



Kidney diseases are commonly due to germs and 

 their poisonous products, and these organs frequently 

 become involved in blood poisoning and such infec- 

 tious diseases as hog cholera and swine plague. 



Symptoms. — The symptoms are so hidden that it 

 is difficult to recognize the disease in the majority 

 of cases. 



The hog may show a disposition to lie down most 

 of the time, and when it moves about the gait is apt 

 to be stiff and straddling. Other symptoms of pain 

 are sometimes manifested, and the appetite is usually 

 irregular. The urine is passed in small quantities and 

 at short intervals, is more highly colored than normal, 

 and may be tinged with blood. 



In well-developed cases the body temperature is 



31 



