DISEASES OF HORSES AND CATTLE. 365 



this, and your colts will come out much sleeker 

 and better in every way if they get a fair supply 

 of oats and good clover hay. This I know from 

 actual experience. 



Parasitical Bronchitis, Husk or Hoose in 

 Calves. — Parasites in the trachea and bronchial 

 tubes frequently occur in calves under a year old ; 

 it is seen sometimes among older animals, but sel- 

 dom proves fatal in them, but it sometimes causes 

 great mortality among young calves. These para- 

 sites are known as "strongylus niecrurus," and are 

 sometimes found in the lungs of the ass. Williams 

 says that he has found them in the heart and blood 

 vessels. Hence it is inferred that they arrive at 

 the lungs by entry of the alimentary canal with 

 the food, boring a passage into the blood vessels, 

 passing with the current of blood through the 

 blood vessels, and from the latter into the bron- 

 chial tubes. There are a great many different 

 opinions as to how the parasites get into the 

 bronchial tubes, and it is said that in wet seasons 

 animals pasturing on low, wet land are liable to 

 be attacked by them, and I have no doubt but 

 what there is some truth in it; but I have seen 

 them in calves kept in a dry place in the barn 

 yard and during the early spring months before 

 they had any grass. 



Symptoms : Usually there is at first a cough of 

 a very distressing nature and of a special hacking 

 and paroxysmal character. There is a discharge 

 of stringy mucous caused by the severe coughing. 

 After the paroxysm the animal gets relief for a 



