1. Birds removed from the premises to egg-laying contests, exhibitions, 

 etc., should be held in quarantine and determined free of disease before they 

 are readmitted into the flock. 



2. Purchase of stock in the form of adults, chicks, and eggs should 

 be from known pullorum-disease-free flocks. 



3. Eggs from egg-laying contests should not be returned to premises 

 and flocks which are recognized either as "pullorum passed" or as "pul- 

 lorum clean," unless the contest is so operated as to attain the status of 

 pullorum freedom. 



4. Eggs should not be saved for hatching until after a flock has been 

 tested and birds found free of infection. 



5. Poultrymen should not custom hatch for untested or infected flocks 

 (including fowl other than chickens). 



6. Owners of pullorum-disease-free flocks should not have hatching 

 done where infected eggs or stock may be found. 



7. Fresh and infertile eggs from unknown or infected sources should 

 not be fed to chickens or exposed to animals such as crows, sparrows, 

 and skunks, which may carry or spread infection. 



8. Offal from all birds dressed for market or home consumption, as 

 well as dead birds that are not fit for consumption, should be burned. 



9. Garbage should not be fed to chickens. 



10. Poultrymen should not buy feed in bags that have been used or 

 exposed to infection. (Such bags, if properly disinfected, will be safe for 

 further use.) 



11. Poultrymen should not permit visitors, hen buyers, and feed deal- 

 ers on the poultry ranges and in the poultry houses and other buildings. 



12. Poultrymen should not use equipment that has been exposed to or 

 contaminated with infective material unless it is properly cleaned and 

 sterilized or disinfected. 



13. Poultrymen should regard fowl other than chickens as a possible 

 source of pullorum infection unless tested and found free from pullorum 

 disease. 



Non-Reacting and Positive Flocks Classified by Counties 



Table 4 gives the distribution of non-reacting and positive flocks among 

 the 11 counties. A total of 299 flocks (including partially tested) repre- 

 senting 492,475 birds was identified as non-reacting; and a total of 256 

 flocks (100 percent tested) representing 463,603 birds was found to be non- 

 reacting. This number of birds is slightly higher than that of the previous 

 season. Worcester and Middlesex Counties lead in the number of birds 

 in non-reacting flocks. 



