POUI.TRY DISEASES AND THEIR TREATMENT. 



189 



"The chick as a whole appears more or less anaemic and 

 emaciated. The muscles of the wings, breast and legs may be 

 almost completely wasted away." 



Fig. 45. Ten day White Leghorn chicks showing symptoms of 

 bacillary white diarrhea. (After Rettger and Stoneburn). 



The chief difference between this and coccidiosis appears to 

 be in the contents of the ceca (cf. p. 186). 



Diagnosis of White Diarrhea in General. The symptoms of 

 white diarrhea are in general the same for the different forms 

 of the disease. They may be briefly stated as follows : The 

 affected chicks appear stupid and remain under the hover or hen 

 much of the time. They isolate themselves from the rest of 

 the flock and appear indifferent to what goes on about them. 

 Their feathers become rough and the wings droop (cf. fig. 45). 

 There is progressive loss of weight. The birds eat little or 



Fig. 46. Normal ten day White Leghorn chicks. (After Rettger 

 and Stoneburn). 



nothing and appear unable to pick up their food. Their actions 

 in this direction are chiefly mechanical. The characteristic 

 whitish discharge from the vent very soon makes its appear- 

 ance. The discharged matter may be creamy or sometimes 



