TWENTY-FIRST ANNUAL REPORT OF PULLORUM 



DISEASE ERADICATION IN MASSACHUSETTS 



1940 - 1941 



By the Poultry Disease Control Laboratory' 



Introduction 



Pullorum disease eradication in Massachusetts has made marked progress 

 during the last decade. The elimination of the disease from breeding 

 flocks represents a great monetary asset to the Massachusetts poultry 

 industry. Buyers of hatching eggs, baby chicks, or adult stock have 

 little or no difficulty in obtaining pullorum-free stock in Massachusetts. 



This progress should be credited in part to the Massachusetts Depart- 

 ment of Agriculture, the Extension Service, and other agencies which have 

 cooperated in many phases of the program. However, the greatest credit 

 belongs to the flock owners who have demonstrated that it is possible 

 to maintain a flock free of infection once it has been eliminated. 



Summary of Service Rendered 



Applications received 349 



Applications cancelled 15 



Flocks tested 334 



Chicken flocks 302 



thicken and turkey Hocks 7 



Turkey flocks 25 



Number of tests 547,11(1 



Chickens: 



Routine 537,935 



Experimental 654 



Fowl other than chickens: 



Routine 2,888 



Experimental 5,633* 



Owners receiving necropsy service 21 



Necropsies of reacting birds 45** 



* [ncludes 4,1 04 paratyphoid trst*. 

 '•Includes 32 chickens and 13 turkeys. 



Distribution of Tests and Reactors 



The distribution of tests and reactors by counties and by breeds is pre- 

 sented in Table 1. A total of 538,589 samples was tested in 11 counties. 

 Middlesex and Worcester Counties led in the number of tested samples. 



'Poultry Disease Control Laboratory Staff: II. Van Roekel, Chief oi Laboratory; K. I.. 

 Bullis, Assistant Veterinary Pathologist; 0. s. Flint, Assistant Research Professor; Miriam 

 K. Clarke, Research Assistant; Felicia Jewett, Laboratorj Assistant, Appreciation i-. ex 

 tended to Dr. j. K. Lentz, Head of the Department oi Veterinarj Science, for the assistance 



jiivi'ii to tlir testing work. 



