180 



DR. LEGEAR'S STOCK BOOK. 



Treatment. A thorough-pin truss (Fig. 32) is very beneficial 

 in some cases, but there is no treatment better than Dr. 

 Spavin Cure when used according to directions. 



Fig. 32. Thoroughpin Truss. 



Fig. 33. Bog-Spavin and Thorough- 

 pin Truss. 



BOG SPAVIN. 



A bog spavin is a soft, puffy swelling on the inside of the front 

 of the hock joint, in about the same location as high bone spavin. 

 It is an accumulation of synovia (joint-water) in a distension of 

 the capsular ligament. Large heavy draft horses are very liable 

 to bog spavin, and it very seldom injures such horses. But in 

 light horses, or those used for fast work, the presence of bog 

 spavin or any unnatural fullness in the region of the hock should 

 always be viewed with great suspicion. Where bog spavin is 

 present thorough-pin is nearly always found. 



Causes. Bog spavin is usually caused by hard and fast work, 

 irregular or too little exercise, high feeding, etc. It is sometimes 

 produced very easily, especially in young horses. 



