30 BULLETIN 767, U. S. DEPARTMENT OF AGRICULTURE. 
GENERAL RESULTS OF THE EXPERIMENTAL WORK. 
SYMPTOMS. 
The first symptom, though not always the first one which is noticed 
by stockmen, is pronounced constipation. The feces are passed very 
infrequently, are small in quantity, and very hard andlumpy. These 
lumps may be no larger than a large marble and as dry as the feces 
passed by sheep. Within a few days, stringy, gluelike mucus is 
passed with the feces, and this may be somewhat bloody. As the 
condition develops, the mucus forms a greater proportion of the 
defecated material, until in late stages, clear mucus may be passed 
in lumps. In some cases the feces appear at first sight normal in 
color, but inspection usually shows that they contain a large propor- 
tion of mucus. At this time a diarrheal condition may exist. 
Fic. 18.—A shinneried bull. 
Early in the history of the sickness the animal looks gaunt, the coat 
is rough, and the nose becomes dry and cracked. The attitude, both 
standing and walking, is peculiar; the head is extended forward 
and the animal shows depression, discomfort, and sometimes evidence 
of pain, this pain doubtless being due to the irritated and inflamed 
condition of the alimentary canal. (Figs. 18 and 19.) 
The animal gradually grows weaker and may die at any time from 
a few days to two weeks or more. 
As a rule animals lose their appetites early in the disease, refusing 
food, but appear thirsty. They will stand about watering places, 
taking frequent sips of water. This, together with the dry, parched 
