MANUAL FOR STABLE SERGEANTS. 155 



the horn carefully from about the wound, remove the offending object 

 if present, and establish drainage. Clean the wound thoroughly 

 with a strong antiseptic solution; dry it well with clean cotton and 

 apply tincture of iodine. The foot is then well bandaged and the 

 animal placed in a clean, dry stall. Repeat the dressings twice 

 daily until pus formation and lameness cease. The wound is then 

 packed ^ith tar and oakum and the horse shod as directed in par- 

 agraph 453. 



460. Quittor. — A chronic inflammation of the cartilages of the 

 foot and their surrounding structures, characterized by the j^resence 

 of one or more small openings (fistulas) from which there is a continu- 

 ous discharge of pus. 



Causes. — Treads on the coronet, suppurating corns, and bruised 

 and punctured wounds of the sole. 



Symptoms. — Heat, swelling, and tenderness in the region of the 

 coronet and heel, usually the inner one. The inflammation may 

 subside, but usually an abscess forms and discharges a bloody pus, 

 after which the swelling may disappear, leaving one or more small 

 canals (fistulas, sinuses) 1 or 2 inches in depth. There is usually 

 lameness. 



Treatment. ^-'Reat. If due to a nail wound, a tread or a BUj)purating 

 corn, treat accordingly. The canals may be injected twice daily 

 with tincture of iodine and a pack of a 1 to 1,000 solution of bichloride of 

 mercury applied. If this does not affect a cure, an operation will be 

 necessary. 



461. Seedy toe. — A mealy condition of the horn of the wall, 

 usually in the region of the toe. 



Causes. — ^Usually results from an attack of laminitis: Excessive 

 moisture is also said to be a cause. 



Symptoms. — A crumbling and breaking away of the white line 

 between the wall and the sole, leading to the formation of a hollow 

 wall. By tapping on the wall of the diseased part a hollow sound 

 may be heard. 



Treatment. — Scrape out the soft, crumbly horn and clean the 

 cavity well; apply tincture of iodine or pure creolin and pack with tar 

 and oakum. The foot is then shod with a leather pad and a bar shoe. 

 A cantharides blister should be applied to the coronet to stimulate 

 the growth of the horn. 



462. Thrush. — A disease of the frog characterized by an offensive 

 odor and a softening of the horn. 



