48 DISEASES OF DOMESTICATED BIRDS 
Symptoms. The birds display depression and the gait is uncer- 
tain. The appetite is poor. Late in the disease an abundant di- 
arrhea occurs, with the passage of grayish yellow or greenish colored 
material. The state of coma and somnolence seen in fowl cholera 
does not occur. The attack lasts five to eight days. 
Morbid anatomy. Lesions occur throughout the intestine. The 
mucosa is congested, is reddish brown in color and is covered with 
a viscid layer or by a croupous exudate. Ecchymoses are not found 
on the serous membranes. ‘The liver is friable and the spleen is 
swollen but not hemorrhagic. 
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