entailed 44,506 individual determinations. Twenty-five peat and muck sam- 

 ples submitted for identification, and for possible commercial use were an- 

 alyzed for moisture and organic matter content and for pH value. 



G. P. Percival 



Diagnostic Services Performed at the 

 Poultry Laboratory, University of N. H. 



From July 1, 1953, to June 30, 1954, a total of 5,965 specimens of all 

 kinds were submitted to the Poultry Laboratory for diagnosis. These repre- 

 sented 2,549 cases. 



A total of 5,396 chicken specimens were examined, 147 turkeys, and 

 10 miscellaneous birds. Twenty-seven cases consisting of 44 specimens from 

 various animals were also handled by the laboratory personnel. There were 

 368 cases of blood samples submitted for the immunity tests. 



A. C. CORBETT, W. R. DUNLOP 



Infectious Bronchitis Virus 



The Poultry Laboratory has continued to grow Infectious Bronchitis 

 on embryonating eggs, and after being tested for purity and potency, it is 

 sold to poultrymen of the state for inoculation of their susceptible birds. 

 During the last fiscal year. 989 lots of this virus were supplied to New 

 Hampshire poultrymen. This is used entirely for flock replacements, where- 

 as the U.N.H. experimental combination Newcastle and Bronchitis spray 

 vaccine is used with excellent results for either broilers or flock re- 

 placements. 



F. E. Allen, A. C. Corbett, W. R. Dunlop 



Pullorum Testing 



Testing of the poultry for Pullorum disease in the State of New Hamp- 

 shire is done by the Poultry Laboratory at the University. During the fiscal 

 year, 1,528,170 birds were tested by means of the tube agglutination test, 

 in addition, 64, 893 retests were made, thus giving a total of 1,593,063 sam- 

 ples tested for the year. 



Of 497 flocks tested, infection was found in 6. Thus 1.2 percent of 

 the flocks under test were infected. 



F. E. Allen, A. C. Corbett, W. R. Dunlop 



44 



