STALLION LAWS AND REGULATIONS 



433 



"Laryngeal hemiplegia (roaring or whistling). 



"Pulmonary emphysema (heaves, broken wind). 



"Chorea (St. Vitus dance, crampiness, shivering, 

 string halt). 



"Bone spavin ; ringbone ; sidebone ; navicular disease. 



"Bog spavin ; curb, with curby formation of hock. , 



"Glanders, farcy; maladie du coit; urethral gleet; 

 mange; melanosis." 



It is interesting to note the relative frequency of the 

 various classes of unsoundness in draft and light horses. 

 In Minnesota the common causes of disqualification for 

 draft horses are sidebones, which are by far the more 

 common, bone spavin, roaring, ringbone and cataract in 

 the order named, while in light horses bone spavin, ring- 

 bone and sidebone occurs in the order named. This is 

 illustrated in the following table, which shows the cause 

 for which stallions were disqualified from standing for 

 public service in Minnesota:* 



Disqualification 



Draft horses 

 4135 examined 

 lis disqualified 



Light horses 

 930 examined 

 13 disqualified 



Pure- 

 bred 



Grade 



Pure- 

 bred 



Grade 



Total 



Sidebone, ^ 



Bone spavin 



Roaring 



Ringbone 



Cataract 



Ophthalmia 



Curb 



Spavin and roaring 



Sidebone and roaring .... 

 Sidebone and ring-bone . . 



Sidebone and spavin 



Spavin, ring-bone and curb 

 Sidebone and Amaurosis . . 

 Roaring and stringhalt . . . 



31 

 2 

 7 

 

 2 

 2 

 

 

 3 

 1 

 1 

 

 1 



32 

 15 

 7 

 4 

 1 

 1 

 1 

 2 

 1 

 

 

 1 

 



63 

 17 

 14 

 4 

 3 

 3 

 1 

 2 

 4 

 1 

 1 

 1 

 1 



According to this table over 50% of the stallions dis- 

 qualified from standing for public service in Minnesota 

 are troubled with sidebones. 



* Bulletin Nq. 3. A Report of the Horse-Breeding Industry in Minnesota. 



