DISEASES AND PESTS OF FOWLS 



FIG. 25. CHICKENS AFFECTED WITH WHITE DIARRHEA 



Ten-day White Leghorn chickens showing symptoms of bacillary white 



diarrhea. (After Rettger & Stoneburn.) 



after chicken shows similar symptoms and 

 dies, resulting in much loss and discourage- 

 ment to the poultry rearer. 



Cause. Various causes, such as im- 

 proper or stale food, may upset the chick- 

 en's digestive organs and give rise to a 

 whitish diarrhea, but the term "white diar- 

 rhea" is best restricted to a contagious form 

 of diarrhea due to minute parasites in the 

 intestinal tracts of chickens. A coccidium 



FIG. 26. HEALTHY CHICKENS 

 Normal ten-day White Leghorn chickens. (After Rettger & Stoneburn.) 



93 



