166 



PRACTICAL POULTRY PRODUCTION 



White comb, or favus. This is a very contagious disease, 

 spreading quickly from one bird to another. 



Symptoms. The general symptoms of this disease are 

 white or grayish spots that form on the comb, wattles, 

 ear lobes, and other parts of the body. 



Treatment. Birds so affected should immediately be 

 removed from the flock. When the disease affects only the 

 bare parts of the head and face it can sometimes be cured 



by applying iodine. An- 

 other effective remedy is 

 that of applying ointment 

 composed of 1 part of 

 powdered sulphur mixed 

 with 9 parts of carbo- 

 lated vaseline. In ap- 

 plying this the affected 

 parts should be merely 

 greased and not rubbed, 

 as rubbing tends to 

 spread the disease. Re- 

 peated applications 

 should be made every 

 three days until the affec- 

 tion disappears. If the 

 feathered portions of the 

 body are affected, it is 

 better to kill the fowl, as 

 it usually requires considerable time to effect a cure. 



Blackhead. The most troublesome and infectious dis- 

 ease that affects turkej^s is blackhead, an affection of the 

 intestines and liver. It is noticeable that, whenever the 

 climate and range conditions are such as to permit turkeys 

 to forage for the greater part of their feed, cases of blackhead 

 are infrequent. Again, blackhead rarely occurs in flocks 



Figure 167. — White Leghorn cockerel with 

 favus, or white comb. 



