DISEASES AND PARASITES OF FOWLS 



381 



a tuberculous condition in 88 cases out of 90. On the other 

 hand, 8 to 9% of the fowls showing no reactions were found 

 to be tuberculous. 



Should this test prove to be as successful in the hands of 

 others as it has been in the experiments reported, it is a 

 discovery that marks a most important advance. 



Roup. Many poultrymen believe that roup and the 

 kindred affection, catarrh, are the most troublesome diseases 

 of poultry. Roup proper is believed to be a contagious germ 



disease. Catarrh, exhibit- , 



ing practically the same 

 symptoms, is not conta- 

 gious, being produced usu- 

 ally by improper housing. 

 The specific organism pro- 

 ducing roup has not been 

 discovered. 



Symptoms. It usually 

 begins with a watery dis- 

 charge from the nostrils 

 and eyes, which as the dis- 

 ease progresses, becomes 

 thicker and of the nature 

 of pus. The nostrils become clogged, interfering with 

 breathing, and there is usually a swelling around the eyes. 

 The swelling often grows until the eye is closed entirely. 

 The disease frequently spreads to the mouth and throat and 

 assumes the character of diphtheria, when death soon 

 results. 



Treatment. The only hope of curing is in recognizing 

 the disease in its first stages and applying remedies. 

 Permanganate of potash of a 2% solution has been suc- 

 cessfully used. The head of the bird should be dipped 

 in the solution and held there as long as possible without 



A BAD CASE OF ROUP IN ITS 

 ADVANCED STAGE 



(Courtesy, Prof. T. D. Beckwith, Bac- 

 teriological Department, Oregon Experi- 

 ment Station.) 



