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



County 



Flocks Birds 



PartiaUy Tested 



Flocks Birds 



Flocks Birds 



Non-Reacting Flocks 



Barnstable 



Berkshire 



Bristol 



Essex 



Franklin 



Hampden 



Hampshire 



Middlesex 



Norfolk 



Plymouth 



Worcester 



Totals 184 



Berkshire 



Bristol 



Essex 



Franklin 



Hampden 



Hampshire 



Norfolk 



Worcester 



Totals 16 



10,435 



Norfolk County led in the number (69,929) of birds in non-reacting flocks. 

 Of the total birds tested, 95.6 percent were in non-reacting flocks, a definite 

 increase over the percentage (89.5) for the 1934-35 season. Furthermore, 

 among the 315,215 birds in the negative flocks, 90.9 percent were in the 100 

 percent tested flocks. 



The number (22) of positive flocks shows a reduction from the previous 

 season. Of the total birds tested, 14,444 or 4.4 percent were in the positive 

 flocks. 



These results show that continued progress is being made toward establish- 

 ing and maintaining pullorum-clean flocks. An annual decrease in the number 

 of positive flocks, which represents a small portion of the total tested birds, 

 clearly demonstrates that pullorum infection can be eliminated if proper 

 measures are followed. While the number of tested flocks represents only a 

 small percentage of the total flocks in Massachusetts, yet the birds in the 

 pullorum-disease-clean flocks serve as a nucleus from which many additional 

 clean flocks can be established. This fact is quite evident as manifested in 

 the group of flocks tested for the first time. The Massachusetts poultry 

 industry is in a fortunate position to be able to replace the majority, if not 

 all, of the infected flocks in the State. A concerted and organized effort should 

 be made toward educating and stimulating the poultrymen to replace infected 



