204 



DISEASKS OF POULTRY. 



the bird should be killed, as its treatment would be 

 unprofitable, and its entire recovery would not be 

 ])robable. 



SCABIES OF THE LEGS AND FEET — SCALY LEGS. 



Symptoms. — In scabies of the legs, the epidermic 

 scales on the anterior surface of the legs and upon the 

 upper surface of the foot, become 

 loosened and elevated by the forma- 

 tion of a whitish crust or compacted 

 powdery substance beneath them. 

 The raising of these scales gives the 

 leg a rough and enlarged appearance 

 which is easily recognized and is verj^ 

 characteristic. 



This form of scabies begins in the 



clefts between the toes and runs a 



very slow course. The elevation of 



the epidermic scales is very gradual. 



K'^' 58--.9«rro/M« ^|. flj-st there is observed only a 



ri/ti/ix of the fowl; •' 



male: dorsal surface; flight thickening of thcse scalcs , and 



nia>rnified 100 diani- -^"fe = ' 



"^'■s- roughness, but the continued forma- 



tion of the white, powdery crust aggravates this con- 

 dition, causes the scales to become detached and to 

 assume a position nearly perpendicular to the surface. 

 The disea.se extends up the leg and also along the toes 

 until the whole shank and foot become involved. The 

 two legs are usuall}' affected at the same time and to 

 about the same degree. 



Unless treated the disease continues to progress, the 

 epidermic scales are detached, the joints become af- 

 fected and the birds walk with difficulty. In the most 

 severe cases a joint or even an entire toe may become 

 detached, the birds lose flesh and die from exhaustion. 

 There appears to l)e only a moderate degree of itching. 



jiiiit 



