DISEASA8 OP THE DOMESTIC ANIMALS 787 



Ventral Hernia — This occurs in any part of belly wall from 

 injury to wall, except at natural rings. Treatment is not often 

 required. If small, same method as for umbilical hernia may be 

 used, or blister applied over protrusion. If strangulated or large, 

 an open operation under strictest asepsis, 726, with return of con- 

 tents of sac and suture of wall in layers, and overlapping of ex- 

 ternal oblique aponeurosis, may be done. 



Inguinal Hernia — Rare in gelding; return bowel by taxis under 

 anesthesia if possible, and apply clamps to skin as for umbilical 

 hernia. If taxis fails, open operation with division of the ring 

 must be done. In the stallion, covered castration operation, fol- 

 lowed by clamps applied to skin, or suture. 



Herpes. 



Lead acetate, 174. 



Hog Cholera. 



Under this title three distinct diseases are sometimes confounded 

 — 1. Hog Cholera or Swine Fever, in U. S. and Great Britain. 

 2. Swine Plague. 3. Swine Erysipelas or Mai Rouge. Treatment 

 of these of little value. Protection against hog cholera is now 

 assured by the serum of hyperimmunized hogs. An immune hog 

 (which has recovered from hog cholera) is injected with blood from 

 an animal actually sick with hog cholera. A week or so after such 

 treatment, the hyperimmunized hog is repeatedly bled and the 

 serum — mixed with the 0.5% of carbolic acid — is then ready for use 

 to protect healthy or exposed animals against hog cholera. If 

 injected by the simultaneous method — i. e., with a small quantity 

 of blood from an animal sick with hog cholera — it produces an 

 immunity lasting for six months or a year. If injected alone it 

 affords immunity which is transient — unless the animal is soon 

 exposed to hog cholera, when the immunity persists as in the 

 simultaneous method. The dose of serum is 20 c.c. The serum 

 alone is then useful, given subcutaneously to healthy animals, .in a 

 herd in which hog cholera exists, and affords protection in a very 

 large proportion of cases — as high as 90% — against the disease. 

 It is the only successful method of treatment now known. Com- 

 pulsory inspection and control; notification; isolation of diseased, 

 suspects and new arrivals; examination of live and dead animals 

 in markets ; burning or deep burying of dead, with thorough disin- 

 fection of premises (725) and feces, are indicated. Much the same 

 course for all three diseases. 



HoosE. Husk. Verminous Bronchitis. 



Due to presence in the bronchial tubes of S. filaria in lambs; S. 

 micrurus in calves. 



Lambs— Internally, oil of turpentine (3i) 504., or oil of turpen- 

 tine and tine, camphor; of each 3i once daily in milk; or creosote 

 (5ii) 333, benzine (Ji), and water (2 qts.) in teaspoonful doses 

 for week (Moussu) once daily. By inhalation— Calves, 3ii each of oil 

 of turpentine and ether poured in each nostril of upturned head 



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