74 DISEASES OF HORSES AND CATTLE. 



CHAPTER V. 



DISEASES OF THE RESPIRATORY ORGANS. 



Acute Catarrh. — Catarrh, or cold, is an inflam- 

 mation of the membrane lining the nostrils and 

 the cavities of the face and head. It is attended 

 with a watery, then with a mattery discharge from 

 the nose, and occasionally with cough and sore 

 throat. 



Causes: The direct causes of acute catarrh are 

 exposure to cold and wet, particularly when heat- 

 ed and weakened from overwork, and in contact 

 with animals suffering from the same disturbance. 

 When animals are placed in damp, badly venti- 

 lated stables, or when they are standing when the 

 system has been weakened by over-driving, the 

 influence of the cold suddenly applied acts detri- 

 mentally upon them. 



Symptoms: Are sneezing, redness and dryness 

 of the membrane of the nose, then a watery dis- 

 charge of an irritating character, succeeded after 

 a few days by a turbid yellow discharge. The lin- 

 ings of the eyelids are more or less affected, and 

 there is a copious discharge of tears. If the throat 

 is affected, there will be a cough. The fever in 

 some cases is very slight, the appetite remains un- 

 impaired, and there is no alteration of the pulse or 

 breathing. In other cases there is considerable 

 fever, the appetite diminished or may be lost, the 



