800 INDEX OF DISEASES AND REMEDIES 



VERTIGO IN HORSE. See MEGRIMS. 



VILLITIS. 



Coronitis. Inflammation of the coronary substance in horses. Occurs 

 from standing in cold water or snow. Prevails in America among 

 horses grazed on alkaline marshes, where secretion of crust checked 

 or arrested, and hoof sometimes gradually separates. 

 Remove shoes ; antiseptic fomentations and a laxative abate inflam- 

 mation. 



Stimulate coronet with a mild blister so soon as inflammation removed. 

 Where even one hoof is undergoing separation the horse for months 

 requires attention. 



VOLVULUS. 



Ileus. Twist of bowel. Affects small, occasionally large, intestine 



of horse. 



Cannot be rectified by medical treatment, but laparotomy, if under- 

 taken early, may be successful. Rectal exploration useful in twisted 

 large colon. 



WARBLES IN CATTLE. 



Cystlike swellings on the back due to the presence of the larvae of the 



Hypoderma bovis or warble-fly. 



To prevent, before turning cattle out, smear their backs once or 

 twice during summer, with Stockholm tar. The larvse can be removed 

 from the skin by squeezing the swellings. Similar warbles occur 

 sometimes in horses at pasture. 



WARTS. 



Verrucse. Excrescences on the skin formed by hypertrophy of the 

 papillae and epidermis. Occur in all veterinary subjects : most 

 common in young animals. 

 Remove by excision, torsion or ligature. 



Those about the penis liable to reappear unless their site is cauterised. 

 Acetic, nitric, and chromic acids, and silver nitrate, destroy warts. 



WEED. See LYMPHANGITIS. 



WHISTLING IN HORSES. See ROARING. 



It is a higher-pitched sound than roaring, and is manifested chiefly in 

 the lighter breeds. 



WIND-GALLS. 



Distended synovial bursse ; articular and tendinous. 

 Equable pressure by flannel or wash-leather bandages ; bandages wetted 



with white lotion. 

 Rest, hand-rubbing, blisters or firing ; aseptic aspiration. Recurrence 



is common. 



WITHERS, FISTULOUS. See FISTULA and ABSCESS. 

 WORMS. 



WORMS. VERMES. THE ENTOZOA MOST FREQUENTLY FOUND INFESTING THE 

 DOMESTIC ANIMALS : 



ROUND AND THREAD WORMS. NEMATODA. 



Ascaris equorum, intestine and stomach of horses. 

 As. vitulorum or calf ascarid, intestine of calves. 

 As. suis, intestine of swine. 



As. marginata and As. mystax, intestines of dogs and cats. 

 Heterakis papillosa and other species, intestines of fowls and pigeons. 

 Trichinella spiralis, in immature form, occurring in pork or bacon, 

 which when eaten causes trichiniasis in man and animals. 



