Massachusetts 

 agricultural experiment station 



Control Series Bulletin No. 116 July 1943 



Twenty-third Annual Report of 



PuUorum Disease Eradication 



in Massachusetts 



By the Poultry Disease Control Laboratory 



In comparison with the previous season there was a slight decrease in the 

 number of flocks and birds tested and an increase in the percentage of positive 

 tests. Although there were fewer non-reacting flocks, both the number and 

 percentage of birds in these flocks showed a slight increase. On the whole, 

 the results are encouraging when considered in connection with the conditions 

 which confronted flock owners during the year. 



MASSACHUSETTS STATE COLLEGE 

 AMHERST, MASS. 



