Massachusetts 

 agricultural experiment station 



Bulletin No. 323 July, 1935 



The Whole Blood Agglutination Test 

 For Pullorum Disease 



By H. Van Roekel and M. K. Clarke 



The whole blood test was introduced several years ago in response to a demand 

 for a method of testing less expensive than the standard tube test. This newer 

 test has not proved entirely satisfactory, and the work here described was under- 

 taken to gain more knowledge of the factors which influence its effectiveness and 

 reliability in eliminating pullorum infection from poultry flocks. 



MASSACHUSETTS STATE COLLEGE 

 AMHERST, MASS. 



