CONTROL OF SALMONELLA PULLORUM INFECTION 



IN MASSACHUSETTS 



1927-1928 



By W. R. Hinshaw and E. F. Sanders 



The 1927-28 bacillary white diarrhea testing season began August 15, 1927 

 and ended March 1, 1928. Three liundred and forty-four applications for 

 testing were received and 321 flocks were tested. Twenty applications were 

 cancelled at the owner's request, two applicants were not served because of 

 failure to pay for previous service, and one failed to file his application in 

 time for service. Thus, every flock owner who complied witli the testing rules 

 was served. 



This was made possible liy increased funds, which in turn i)rovi(le(l addi- 

 tional equipment and ))ersonnel, and by the excellent cooperation of the 

 jioultrymen, the State and Coimty Extension Service, the Massachusetts 

 Association of Certified Poultry Breeders, the administrative forces, and the 

 laboratory and field workers. We wish at this time to express appreciation 

 to all of the agencies that have cooperated in making the season a successful 

 one, and especially to Dr. J. B. Lentz, Miss Miriam K. Clarke, Miss Rebecca 

 L. Mellor, and Mr. C. B. Waite for their part in the past season's' work and 

 in the preparation of this report. 



Service Rendered under the Poultry Disease Elimination 

 Law during the 1927-1928 Season. 



The following is a summary of the service rendered to poultrynien during 

 the past season: — 



Number of flocks tested, 321 



Number of tests made, 232,091 



Number of birds tested, 190,658 



Non-reacting flocks, 138 

 Flock owners testing 100 per cent of all 



chickens on premises, 162 



Total 100 per cent non-reacting flocks, 85 

 Personal conferences held with visitors 



at the laboratory, 76 



Table 1 summarizes, by counties, the distribution of tests and infection 

 found in the principal breeds during the 1927-28 season. The figures used in 

 this table refer to the actual number of birds tested one or more times dur- 

 ing the season, and not to the total tests made. 



The largest percentage of the birds tested were Rhode Island Reds. For 

 a comparison of the percentage of various breeds tested during other seasons, 

 the reader is referred to Table IV, Control Series Bulletin 39, from this 

 Station. The miscellaneous breeds include Rhode Island Whites, Black 

 Minorcas, Jersey Black Giants, Brahmas, Buff Plymouth Rocks, eight geese, 

 three guinea-fowl, two jungle-fowl, and one turkey. The geese, guinea-fowl. 



