Massachusetts 

 agricultural experiment station 



CONTROL SERIES BULLETIN NO. 149 JULY 1951 



Thirty-first Annual Report of 



PuUorum Disease Eradication 



in Massachusetts 



BY THE POULTRY DISEASE CONTROL LABORATORY 



During the 1950-51 testing season a total of 556 chicken, turkey, and pheasant 

 flocks was tested. The total number of samples (1,427,691) tested was slightly 

 less than that ol the previous season. The percentage of reactors was 0.05. It 

 was encouraging to note that fewer "breaks" were found than in the previous 

 season and that 96.67 percent of all birds tested were in 100 percent tested non- 

 reacting flocks. 



UNIVERSITY OF MASSACHUSETTS 

 AMHERST, MASS. 



