482 



DISEASES AND THEIR TREATMENT. 



cause. A choking noise is sometimes heard^eoming from the throat. 

 In some cases a little blood may be thrown from one or both nos- 

 trils/ Extreme prostration and laborious breathing, and bleeding 

 from the nostrils, show a condition of severe congestion. 



Causes. — The most common cause is violent exertion when the 

 horse is in an unfit state for severe work ; as, for instance, a horse in 

 high condition is taken out of his stable, and driven rapidly for five 



Fig. 803.— View of the Horse's Chest Indicating the Position of the Ribs and Extent 

 of the Thorax over which Auscultation is Performed. 



or six miles ; this induces an increased quantity of blood to the 



lungs, more than they can dispose of in their weakened condition 



from want of regular exercise. It is also caused by ^mpure air, 



in horses standing in crowded, badly ventilated stables, and is often 



a sequel of catarrh. 



Treatment. — In acute cases it must be energetic. Clothe the 



body well, and- administer stimulants, as — 



• Sulphuric ether 2 oz. 



Laudanum . . . . 1 oz. 



To be given in half a pint of cold water ; or nitrous ether may be 

 given in place of the sulphuric. 



