partially tested non-reacting flocks, representing 28,673 birds, were detected 

 in ten counties. The flocks tested in Berkshire and Dukes counties were all 100 

 percent tested and free of infection. Worcester, Middlesex, and Bristol counties 

 had the largest number of flocks and birds in the non-reacting group. 



In ten counties, 27 flocks, representing 40,837 birds, gave positive tests. Of 

 these 27 flocks, 18 were 100 percent and 9 partially tested. Middlesex County 

 had 10 positive flocks; none of the other nine counties had more than three. 



These results show that, while Massachusetts has a considerable supply of 

 pullorum-free stock, it also has more infected flocks than one would expect after 

 24 years of testing. Of the 413 flocks tested, 6.5 percent, containing 5.2 percent 

 of the birds tested, were classified as infected at the end of the season. 



A more concerted effort should be made, particularly on the part of flock 

 owners, to eliminate the infection from their premises. After a clean flock has 

 been established, every precaution should be taken against reinfection. With 

 the amount of pullorum-free stock existing in Massachusetts today, it should be 

 possible for any poultryman to have nothing but pullorum-free stock on his 

 premises. 



Table S.— Comparison of 1942-43 and 1943-44 Testing 



County 



Flocks 



Birds 



Tests 



Positive Non- 



Tests Reacting 



Percent Flocks 



Barnstable 2 



Berkshire 7 



Bristol 48 



Dukes 1 



Essex 48 



Franklin 26 



Hampden 20 



Hampshire 25 



Middlesex 46 



Norfolk 25 



Plymouth 30 



Worcester 54 



Totals 



Barnstable 



Berkshire 



Bristol 



Dukes 



Essex 



Franklin 



Hampden 



Hampshire 



Middlesex 



Norfolk 



Plymouth 



Worcester 



Totals 413 



1942-43 Season 



3,764 

 11,552 

 93,356 



2,239 

 81,252 

 44,575 

 20,466 

 29,107 

 97,297 

 70.178 

 70,495 

 113,385 



3,764 

 13,873 

 95,744 

 2,239 

 81,252 

 46,704 

 20,466 

 29,246 



100,075 

 71,890 

 70,499 



113,385 



0.00 

 1.44 

 0.08 

 0.00 

 0.02 

 0.03 

 0.00 

 0,02 

 0.01 

 1.64 

 0.35 

 1.20 



2 



6 



45 



1 



47 

 26 

 20 

 23 

 43 

 23 

 29 

 52 



762,066 



