170 PEINOrPLES OF VETEEINAET SUBGEBY 



What other precautions are necessary to secv/re healing of a 

 fractv/re ? 



Keep the animal quiet. Put the horse into a narrow 

 stall and in slings, provided these do not irritate him. It is 

 sometimes wonderful how a colt or horse, when turned into a 

 bos stall after his leg is properly set, will nurse it. The 

 judgment of the surgeon is decisive here. 



How soon can you remove the permanent plaster of paris 

 dressing ? 



In the horse, in six to twelve weeks ; in the dog, in ahout 

 four weeks ; and in birds, about fourteen days. 



Sow can you encourage callus formation by internal medica- 

 tion ? 

 Give horses once daily one-quarter to one-half grain of 

 phosphorus ; the dog, 1-300 to 1-100 grain. 



If you throw a horse for an operation and he breaJcs a bone at 

 the time, what prophylactic steps Tnust you take previous 

 to throwing him and while throwing him to escape a 

 verdict of guilty in case the owner of such a horse sues 

 you for damages ? 



Three classes of horses demand our attention here : the 

 highly-bred horse (runners, trotters, etc.), the highly-fed 

 draft horse and the old horse. The first two are likely to 

 fight and wriggle around viciously as soon as they are laid 

 down, subjecting themselves to fractures and a struggling 

 myositis ; the last one — that is, the old horse — is predisposed 

 to fractures of the vertebras by reason of ankylosis and senile 

 atrophy of the vertebral bones. 



Whenever possible, operate the old horse in the standing 

 posture and only lay him down when absolutely necessary. 



