BACILLARY WHITE DIARRHEA OF FOWLS Q17 
the tissues, it appears singly and in clumps, stains readily with the 
ordinary bacterial stains and can be cultivated on the usual media. 
It has a somewhat close resemblance in certain of its cultural charac- 
ters to the bacterium of fowl typhoid. It is fatal to young guinea 
pigs when inoculated subcutaneously in pure culture. Chickens are 
most susceptible within the first 48 hours after hatching and they 
seem to be quite resistant after they are four days old. Inoculation 
with pure cultures in adult fowls rarely if ever produces the disease 
although outbreaks of it sometimes occur. 
Fic. 49. DIAGRAM SHOWING HOW BACILLARY WHITE DIARRHEA PERPETUATES ITSELF 
IN THE BREEDING STOCK. (BULLETIN NO. 68, STORRS AGRIC. EXP. STATION, 1911). 
The period of incubation varies in young chicks but it is very short. 
Mode of infection. Infection takes place in’ three ways, namely; 
through the infected egg, by young chicks coming in contact with 
those that have acquired the disease through egg infection and by 
young chicks being housed in contaminated brooders or pens that were 
recently occupied by infected chicks. 
Symptoms. The symptoms of this disease are not characteristic 
but resemble closely those of other intestinal troubles in young 
chickens. The first indication of disorder is the desire for more heat, 
indicated by the young chicks seeking the warmer places in the 
brooder. This is followed by general depression, loss of appetite and 
labored breathing. The chick stands with feet apart, the eyes are 
