Vaccination processes of a domestic bird, reduction of microbial contamination of domestic birds and distribution of a protein in a domestic bird

摘要

"PROCESSES OF VACCINATION OF A HOUSE, DEREDUCTION OF MICROBIAL CONTAMINATION OF POULTRY AND DISTRIBUTION OF A PROTEIN IN A HOUSE". a poultry vaccination process is described by spraying poultry with an effective amount of a live avirulent derivative of an enteropathogenic enterobacterium.