MASSACHUSETTS 

 AGRICULTURAL EXPERIMENT STATION 



CONTROL SERIES BULLETIN NO. 128 JUNE 1946 .. 



Twenty-sixth Annual Report of 



Pullorum Disease Eradication 



in Massachusetts 



By the Poultry Disease Control Laboratory 



During the 1945-46 season, 1,259,623 samples representing 630 chicken and 

 turkey flocks were tested. Compared with the previous season, there were 

 increases in the number of samples (284,582) and the number of flocks (101) 

 tested) yet the average percentage of reactors was the same, 0.12. Flocks tested 

 annually revealed a lower average percentage of reactors than the flocks tested 

 for the first time or intermittently. Progress in eradication of pullorum disease 

 is definitely evident in that 95.3 percent of all birds tested are in 100 percent 

 tested non-reacting flocks. 



MASSACHUSETTS STATE COLLEGE 

 AMHERST, MASS. 



