6. Birds removed from the premises to egg-laying contests, exhibitions, etc;., 

 should be held in quarantine and determined free of disease before they are read- 

 Tiittfd into the flock. 



7. Purchase of stock in the form of adults, chicks, and eggs should be from 

 ^n lun puUorum disease-free flocks. The Massachusetts Department of Agriculture, 

 M Tremont Street, Boston, should be consulted regarding additions or replacements 

 n the flock. 



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

 ind all the infected birds removed. Early pullet testing will permit early hatching. 



9. Fresh and infertile eggs from unknown or infected sources should not be 

 "ed to chickens or exposed to birds or animals, such as crows, sparrows, and skunks, 

 hat may carry or spread the infection. 



10. Poultrymen should not custom-hatch for untested or infected flocks 

 (including fowl other than chickens). 



1 1. Owners of pullorum disease-free flocks should not permit hatching where 

 nfected eggs or stock may be found. 



12. Poultrymen §hould not buy feed in bags that have been used or exposed to 

 nfection. (Such bags if properly disinfected will be safe for further use.) 



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

 if pullorum infection unless tested and found free from pullorum disease. 



14. Poultrvmen should not use equipment that has been exposed to or con- 

 aminated with infective material unless it is properly cleaned and sterilized or 

 lisinfected. 



