Iljllillilll 



J d | a i 4 - 1 : * Mil 



▼*k ■■•*.^J> «4>4. <•», m. ^_ .4 si . 



Fig. 13 — Our veterinarians and laboratory technicians test blood samples from 



over a million birds each year to determine the presence or 



absence of pullorum disease. 



1,451,085 samples that were tested 

 during the year. 



Infection was found in 16 flocks 

 of the 692 that were tested. This 

 represents only 2.3 per cent infection 

 and New Hampshire thus becomes 

 one of the cleanest states in the coun- 

 try as far as pullorum disease of 

 poultry is concerned. 



F. E. Allen, D. V. M. 

 A. C. Corbett, D.V. M. 



G. P. Faddoul, D. V. M. 



Infectious Bronchitis Virus. Dur- 

 ing the past fiscal year, 102 poultry- 

 men procured Infectious Bronchitis 

 virus from the Poultry Laboratory. 

 Poultrymen use this virus to produce 

 the disease in their young stock; 

 after recovery the birds have a life- 



time immunity. Thus, the poultry- 

 man is spared the ravaging effects 

 which this disease produces in adult 

 stock, mostly through weeks of lost 

 egg production. 



This virus cannot be shipped in- 

 terstate but is available to any poul- 

 tryman in the State. It is obtained 

 from the trachea of artifically in- 

 fected hens and is held in the frozen 

 state until used. It is available at 

 all times of the year. 



F. E. Allen, D. V. M. 

 A. C. Corbett, D. V. M. 



G. P. Faddoul, D. V. M. 



Autopsies at the Poultry Labora- 

 tory. During the fiscal year 1947- 

 48, a total of 2,589 specimens of all 

 kinds were submitted to the Poultry 



26 



