8 

 consecutively tested flocks, which are grouped according to the number of years 

 they have been tested. 



Table V. — Averane Percentaoe Reduction of Infection in Floehs T^ted Conseeutir^h/ for Two or More Years. 



SUMMARY 



During the 1923-1924 season, 59,635 breeding birds were tested, this being 

 26,033 more than during the same period a year ago. The percentage of infection 

 as shown by the records in this department, from those flocks tested last season 

 and those tested this year, has been reduced about 60 per cent. Thirty-eight white 

 diarrhoea-free flocks were established; and nearly 90 per cent of the chicks hatched 

 from eggs laid by hens in white diarrhoea-free flocks have lived. These reports 

 have been furnished by buyers of hatching eggs and day-old chicks from owners 

 of white diarrhoea-free breeding flocks. 



The instruction and supervision of poultrj-men, together with their spirit of 

 co-operation on the problem, have aided greatly in the correlation of the labora- 

 tory and field service; and this in turn has all materially furthered the object of 

 the project, which is the elimination of bacillary white diarrhoea of chicks from 

 the breeding flocks of the State. 



