DISEASES OF THE RESPIRATORY APPARATUS 103 



indigestion is commonly present in heavy horses that are not 

 well cared for, or are given hard work. This condition aggra- 

 vates the distressed breathing. 



Heaves is a pennanent disorder, but it may be relieved by 

 climatic changes and careful attention to the animal's diet. 



The following preventive treatment is recommended : Dusty 

 hay should not be fed to horses. Clover hay is not a safe feed 

 for horses that are worked hard. When starting on a drive 

 after feeding, the horse should not be driven fast, but allowed 

 to go slowly for a few miles. 



The symptoms can be greatly relieved by careful attention 

 to the diet. A limited quantity of roughage should be fed, and 

 this should be good in quality and fed in the evening. During 

 the warm weather, the animal should be watered frequently. 

 After quitting work in the evening the animal may be allowed 

 to drink as much water as it wants. Plenty of grain, soft feed 

 and roots may be fed. A small handful of flaxseed meal given 

 with the feed helps in keeping down constipation. Fowler's 

 solution of arsenic may be given twice daily with the feed, in 

 half-ounce doses for a period of ten days or two weeks. Chronic 

 indigestion should be combated by digestive tonics. 



QUESTIONS 



1. Name the organs that form the anterior and posterior air passages. 



2. To what conditions are the injurious effects of keeping animals in a 



poorly ventilated stable due? 



3. State the purpose of ventilation. How can the need of ventilation be 



determined in a stable? 



4. State the causes of " cold" in the head; give the treatment. 



5. State the cause of bronchitis ; give the treatment. 



6. What are the causes of pneumonia? Describe the symptoms and 



treatment. 



7. What symptoms are characteristic of pleurisy? Give the treatment 



for pleurisy. 



8. Give the causes and treatment of " heaves." 



