DISEASES OF THE RESPIRATORY TRACT ■ 45 



fortable quarters and a light ration. During the 

 early stages of the disease, steaming the animal two 

 or three times a day may give relief. This part of 

 the treatment is the same as recommended in a 

 catarrhal cold. 



In chronic bronchitis good care and nourishing 

 feed will enable the animal to outgrow the disease. 

 Such complications as sore throat and pneumonia 

 should receive the necessary treatment. 



INFLAMMATION OF THE LUNGS^PNEUMONIA 



Acute congestion and inflammation of the spongy 

 tissue of the lungs is met with in hogs, the same as 

 in other farm animals. Inflammation of a part or 

 a, few lobules of the lungs is frequently met with 

 when lung worms are present. 



Causes. — Fat, plethoric hogs, because of their 

 condition, are especially predisposed to pneiimonia. 

 The exciting causes are very much the same as in 

 the different diseases of the air passages, and it is 

 not uncommon for the inflammation to extend from 

 these parts to the lungs. However, there are a 

 number of causes in adition to those already men- 

 tioned. It frequently occurs when hogs accus- 

 tomed to warm, comfortable quarters are changed 

 to cold, draughty pens, or shipped some distance 

 in open stock cars during the cold weather. In 

 fact, any sudden chilling of the body is a common 

 cause of lung disorders. Giving fat hogs too much 

 exercise, when they are not accustomed to it, is a 

 frequent cause of engorgement and inflammation 



