Comparison of 1938-39 and 1939-40 Testing 



Table 5 gives a comparison of the 1938-39 and 1939-40 testing results. 

 Two counties (Bristol and Middlesex) showed a considerable increase 

 in tested birds over the previous season, while two counties (Hampden 

 and Hampshire) showed a noticeable decrease. In all but two counties 

 ( Franklin and Norfolk), the percentage of infection was less than in the 

 previous season. 



For the state as a whole, increases were observed in tested birds (1,935), 

 tests (58,017), and non-reacting flocks (5). The average percentage of 

 infection increased slightly from 0.34 to 0.51. 



Table 5. Comparison of 1938-39 and 1939-40 Testing 



Count v 



Flocks 



Birds 



Tests 



1938-39 Season 



Barnstable 4 4,643 



Berkshire 15 12,012 



Bristol 42 65,394 



Essex 30 40,138 



Franklin 37 46,142 



Hampden 2 2 20,517 



Hampshire 31 32,349 



Middlesex 55 79,225 



Norfolk 33 125,59 1 



Plymouth 29 ..(,730 



Suffolk , 1 533 



Worcester 56 89,791 



Totals 355 571,065 



1939-40 Season 



Barnstable 2 3,353 



Berkshire L0 13,468 



Bristol 49 73,955 



Dukes 1 53S 



Essex 2S 14.S85 



Franklin 30 48,772 



Hampden 19 16,016 



Hampshire 26 26,233 



Middlesex 58 85,101 



Norfolk 33 110,351 



Plymouth 32 58,671 



Worcester 52 91 ,657 



Totals 346 573,000 



615,205 



073,222 



Twenty- Year Testing Period Shows Progress in Eradication 



Table 6 shows testing data for a twenty-year period. The volume of 

 testing work has increased markedly during this period. The Massachu- 

 setts poultry industry has attained a very commendable position by hav- 

 ing increased the percentage of total tested birds which exist in non- 

 reacting flocks from 9.77 percent to 86.79 percent. Without doubt, these 

 results show that pullorum-free flocks can be established and maintained. 



