THIRTY -SIXTH ANNUAL REPORT OF PULLORUM 



DISEASE ERADICATION IN MASSACHUSETTS 



1955-56 



H. Van Roekel, Miriam K. Clarke, 

 C. F. Smvser, and G. H. Snoeyenbos 



INTRODUCTION 



Results for the 1955-56 testing season reveal that 353 flocks, representing 

 1 178,167 samples, were tested, slightly less than that of the previous season. The 

 percentage (0.08) of positive tests was less than that (0.12) of the previous season. 

 PuUorum reactors were detected in only six flocks, none of which were negative 

 the previous season. This is the first season in the testing history that no "breaks" 

 were detected among negative flocks. It is encouraging to note that fewer infected 

 flocks were detected and that, of the total birds tested, 98.45 percent were found 

 in 100 percent tested nonreacting flocks. 



The laboratory appreciates the fine cooperation of the majority of flock owners 

 in striving towards a common objective, the eradication of puUorum disease. It 

 is hoped that all flock owners and other agencies will continue with earnest desire 

 and concerted effort to eliminate the disease completely from Massachusetts flocks. 

 We also wish to express our appreciation for the splendid cooperation received 

 from the Extension Service, Massachusetts Department of Agriculture, and other 

 agencies. 



SUMMARY OF SERVICE RENDERED 



Flocks tested ; ^^^ 



Chicken 285 



Turkey ^^ 



Pheasant 24 



Number of tests 1,178,167 



Chickens: 



Routine 1,052,982 



Experimental 91,383 



Fowl other than chickens: 



Routine 33,802 



Experimental 



■ SI 



Owners receiving necropsy service "^ 



Necropsies of reacting birds 



Fowl Typhoid Tests : 



Number of flocks ^ 



Number of tests 4,442 



Number of positive tests 1 '■' 



