210 



THE STOCK OWNER S ADVISEE. 



tached to it, unless actual lameness is present. But if in light 

 horses, used for fast work, the presence of a bog spavin should 

 be looked upon with suspicion. In such animals a bog spavin 

 should be considered an unsoundness. 



Bog spavins are caused by hard and fast work, irregular exer- 

 cise, high feeding, etc. Young horses are more liable than old. 



Fig. 52— Bog Spavin. 



The puffy tumor can be easily seen in connection with the hock. 

 Inflammation of the true hock joint may be acute or chronic. 

 In the acute form the lameness is very great, with fever, loss 

 of condition, and inability to put the foot to the ground. It is 

 apt to terminate in ulceration of the articular cartilage and a 

 partial anchylosis of the joint. 



Treatment. — If the horse is in a plethoric condition, he 

 should be reduced. Six drachms of aloes should be given, fol- 



