SOME COMMUNICABLE DISEASES 367 



1 :500 solution of corrosive sublimate or tincture of iodin and the 

 navel stump immersed in it. To keep the disinfectant from 

 blistering the foal's belly, smear vaseline on the skin around the 

 navel before applying the solution. A dusting powder that would 

 dry up the cord is useful. Death may often be averted by 

 promptly opening and disinfecting the abscesses wherever found. 

 Stimulants to sustain the heart and medicine to control digestive 

 disorders, frequent complications, must be provided. 



Fig. 95. — Foal affected with navel and joint disease. Note the thin, gaunt 

 condition and the swelling of the right knee and left hock joint. 



NECROBACILLOSIS 



Under this term are included three different types of an infec- 

 tious disease commonly affecting young pigs, more rarely calves. 

 These affections are known as "sore mouth" or "necrotic stoma- 

 titis," "bull nose" or "sniffles, "and "necrotic enteritis" respec- 

 tively. All forms are directly contagious. 



Cause. — The Bacillus necrophorus is the cause of all types. 

 This germ gains entrance to the soft tissues of the mouth, nose, 

 and intestines through abrasions of the mucous membrane lining 

 these organs. It thrives in damp litter and soil of pig pens. 



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