8 



possible time. The establishment of pullorum-clean flocks in Massachusetts 

 today can usually be accomplished with definite assurance, and any flock owner 

 who knows that his flock is infected should make every effort possible to eradi- 

 cate the infection. 



Table 4. Non-reacting and Positive Flocks Classified by Counties 



County 



100% Tested 



Flocks 



Birds 



Partially Tested 



Flocks Birds 



Total 



Flocks 



Birds 



Non-reacting Flocks 



Barnstable. . . 



Berkshire 



Bristol 



Dukes 



Essex 



Franklin 



Hampden. . . 

 Hampshire. . . 

 Middlesex. . . 



Norfolk 



Plymouth ... 

 Worcester. . . 



Totals. 



Bristol 



Essex 



Middlesex. 



760 

 2,434 



998 



869 

 1,813 

 1,691 



1,199 



1.047 



7,065 



6 



Totals. 



7,801 



8,118 



COMPARISON OF 1947-48 AND 1948-49 TESTING 



Table 5 gives a comparison of testing results for the 1947-48 and 1948-49 

 seasons. In three counties (Barnstable, Berkshire, and Franklin) there was an 

 increase in the number of tested flocks. In the other counties, either the same 

 number or fewer flocks were tested. An increase in the number of tested birds 

 was observed for Berkshire, Franklin, Middlesex, and Plymouth Counties. In 

 five counties no reactors were detected among tested birds as compared with 

 three the previous season. The a%'erage percentage of reactors was reduced from 

 0.10 to 0.04. 



