lOO POULTRY DISEASES AND THEIR TREATMENT. 



Starting again. New stock may be obtained from uninfected 

 flocks or from incubator chickens raised on a fresh range. 



In the case of valuable show birds treatment may perhaps 



be advisable. 



Harrison and Streit give the following methods of treatmg 



roup : 



"The germs of roup are not very resistant; they can easily 

 be destroyed when present in cultures, or somewhere outside 

 the animal ; but in the animal tissue, they are very difficult to 

 kill, because they penetrate into the tissue ; and unless this too 

 is killed, the germs continue living for a long time." 



"Roup may be cured by remedies, if the treatment is careful 

 and judicious. Obstinately reappearing false membranes can be 

 successfully treated by burning the diseased tissue with a strong 

 acid (hydrochloric acid 50 per cent to 75 per cent) or other 

 caustic, such as silver nitrate. If the eyes and nose are attacked, 

 they have to be carefully washed, at least twice a day, with an 

 antiseptic solution, such as 2 per cent boracic acid in a decoction 

 of chamomile flowers, or Yt. per cent solution of corrosive sub- 

 limate. Thus the micro-organisms are killed or at least, the 

 diseased products which are discharged are removed, and the 

 irritation caused by them; also the transformation into large 

 cheesy masses is prevented." 



"We had chickens badly afifected with roup of the eyes, which 

 were cured with boracic acid and chamomile. On account of 

 the smallness of the nostrils and nasal canals, it is very difficult 

 to get the antiseptic solutions into the nose and nasal cavities; 

 but it can be done with a small syringe. If this treatment is 

 too troublesome, then the nostrils, at least, should be washed 

 and opened several times a day, to allow the secretions to pass 

 away. We have treated chickens for 14 days by daily washing 

 with a 2^/4 per cent solution of creolin and glycerine. After the 

 washings, small plugs of cotton wool, filled with mixture, were 

 placed in the nostrils and lachrymal ducts. This remedy did not 

 cure the roup, although the same mixture readily kills the roup 

 bacillus in cultures in from 2 to 3 minutes. The greatest hind- 

 rance to a sure cure by remedies which have been used locally, 

 is the ability of the germ to penetrate into the tissue and the 

 many secondary cavities of the nostrils which cannot be reached 

 by the antiseptic." 



"Another method of treatment which gives excellent results. 



