212 THE VETERINARIAN 



during cold weather may chill the body and result in 

 this disease. 



Symptoms: If due to severe exercise, the animal ap- 

 pears greatly exhausted and the Congestion of the Lungs 

 is marked. Death may occur in this stage of the disease. 

 Inflammation of the Lungs usually begins with a chill 

 and is followed by a high fever. The sheep stand most 

 of the time and may eat nothing, or very little. The 

 breathing is hurried at first, but when the lungs become 

 badly involved, it is also labored. The character of the 

 pulse beats varies, depending on the extent of the in- 

 flammation and the stage of the disease. In most cases 

 the pulse is full and quick during the early stages of the 

 disease. A very weak pulse is present in severe and 

 fatal cases of Pneumonia. The visible mucous mem- 

 branes have a red colored appearance and there may be a 

 slight discharge from the nostrils. The expression of 

 the face is anxious and distressed in severe cases and 

 rigors and chilling of the body occur. The respiratory 

 sounds are more or less normal. The cough at first is 

 deep and dry; later it becomes loose and moist. It may 

 be accompanied by a hemorrhage during this stage of the 

 disease. Other respiratory sounds are revealed by plac- 

 ing the ear to the side of the chest walls and listening to 

 the sound of the lungs. This cannot be practiced in long 

 wooled sheep with satisfaction, as the chest walls are so 

 thick that the lung sounds are deadened, or the noise 

 made by the animal hides the respiratory murmurs in 

 the very early stages of Inflammation of the Lungs. A 

 crepitating or crackling sound can be heard in the dis- 

 eased parts and louder sounds than normal in the healthy 

 areas. Later when the engorgement of the lung sub- 

 stance occurs and the air cells become filled with an in- 

 flammatory serum, the respiratory sounds are deadened, 

 but on returning to the normal, a rattling sound occurs. 

 These symptoms help greatly in determining the animal's 

 condition and in watching the progress of the disease. 



