18 



CONTROL SERIES No. 58 



Summary 



This report contains a brief discussion of pulloruin disease, losses en- 

 countered, means of spread, and methods of combating the disease. The 1930- 

 31 testing results show increases in the number of tested birds and in the 

 number of tests. The average percentage of infection was reduced and was 

 the lowest attained during the eleven-year testing period. The number of 

 birds in 100 per cent tested, non-reacting flocks has increased. No reactors 

 were detected among the 2,099 tested fowl other than chickens. Suggestions 

 are made to aid poultrymen in establishing and maintaining pulloruin dis- 

 ease-free flocks. Testing operations as conducted in the laboratory are il- 

 lustrated by photographs. 



Poultrymen Are Urged to Visit the Testing Laboratory 



Poultrymen are invited to visit the laboratory both to observe how the test- 

 ing work is being conducted and to discuss their testing problems. 



During the past season, 191 persons saw the laboratory in operation. For 

 those who may find it impossible to arrange for such a visit, the following 

 photogra})iis will give some idea as to how the work is being carried on. 



Photograph 3. — Blood Sample Containers and Bags of Leg Bands for One Week's 

 Work, Ready for Shipment to Blood Collectors. 



