CONTROL SERIES BULLETIN No. 18 MARCH, 1922 



MASSACHUSEHS AGRICULTURAL EXPERIMENT STATION 



CONTROL OF BACILLARY WHITE DIARRH(EA 



1920-1921 



By G. E. Gage 



Bacillary white diarrhoea is one of the most destructive of conta- 

 gious poultry diseases. It is one of the few diseases which is passed 

 on directly from breeding bird to offspring. Laboratory methods 

 in the examination of blood samples serve as a means of indicating 

 infected hens which later may be removed from the breeding flock. 

 The work of inspecting breeding flocks to determine the presence 

 of bacillary white diarrhoea is now being carried on by the Depart- 

 ment of Veterinary Science of the Massachusetts Agricultural Ex- 

 periment Station under a law passed in 1919. The work is done 

 only on application, on the basis of a fee charged, and is strictly 

 limited by the size of the appropriation granted by the State. This 

 report contains a record of the work done under this law for the 

 year ending Nov. 30, 1921, together with a discussion of its effec- 

 tiveness and significance. 



Requests for bulletins should be addressed to the 



AGRICULTURAL EXPERIMENT STATION 

 AMHERST. MASS. 



