POULTRY DISEASES AND THEIR TREATMENT. I03 



water. Both of these sokitions are harmless and may be freely 

 and frequently applied. When the epithelium is separating, it 

 should be kept moistened with the glycerine mixture and its 

 detachment may be somewhat facilitated by loosening it with a 

 pin or the point of a penknife, but great care should be exercised, 

 the sensitive tissues should not be touched and no blood should 

 be drawn." 



Prognosis. In and of itself "pip" is not a serious matter. It 

 is, however, usually associated with other disorders of the res- 

 piratory system, which may be very serious. Regarding this 

 matter Salmon says : "The exaggerated idea prevalent as to the 

 dangerous character of 'pip,' probably arises from its being asso- 

 ciated with serious diseases of the respiratory organs and from 

 the fatal results which follow the forcible tearing away of the 

 dried epithelium, leaving a bleeding and ulcerating surface." 



Canker. 



Membranes formed in diphtheritic roup are sometimes called 

 canker, but there are frequently found cheesy patches on the 

 mucous membrane of the mouth or tongue which are not asso- 

 ciated with roup. These growths are frequently, at least, the 

 result of a traumatic injury to the membrane. Male birds fre- 

 quently have canker where they have been picked in the mouth 

 bv other males when fighting. The growths are made up almost 

 entirely of pus germs. These growths should probably be 

 considered as suppurating wounds. An unhealthy condition of 

 the mucous membrane of the mouth due to digestive disorders is 

 sometimes accompanied by spots of canker. 



A good treatment for canker is undiluted creolin applied with 

 a cotton swab. The swab should be. held against each sore for 

 a short time. The whole surface of each patch should be 

 treated. Another good treatment is to wash the sores with hy- 

 drogen peroxide i part and water i part. 



Thrush. 



This term is also sometimes incorrectly applied to the false 

 membranes of diphtheria but there are at least two cases of true 

 thrush on record. That is, in two cases microscopic examina- 

 tion has shown that the patches, which in both these cases were 

 in the lower part of the oesophagus and crop, were made up 

 of spores and filaments of the fungus Saccharomyces albicans. 



