MASSACHUSETTS 

 AGRICULTURAL EXPERIMENT STATION 



CONTROL SERIES BULLETIN NO. 152 JULY 1952 



Thirty-second Annual Report of 



Pullorum Disease Eradication 



in Massachusetts 



BY THE POULTRY DISEASE CONTROL LABORATORY 



A total of 510 chicken, turkey, and pheasant flocks was tested during the 

 1951-52 testing season. A total of 1,406,481 samples was tested, of which 0.015 

 per cent were positive. Eight flocks that were negative the previous season 

 revealed reactors this past season. At the close of the testing year only five 

 flocks were classified as infected. It is encouraging to note that 96.37 per cent 

 of all chickens tested were in 100 per cent tested nonreacting flocks. 



UNIVERSITY OF MASSACHUSETTS 

 AMHERST, MASS. 



