5Carrique-Mas J J,Breslin M,Sayers A R,et al. Comparison of environmental sampling methods for detecting Salmonella in commercial laying flocks in the UK [J]. Lett Appl microbiol, 2008,47 : 514-519.
6Nakamura M,Nagamine N,Takahashi T,et al Horizontal transmission of Salmonlla enteritidis and effect of stress on shedding in laying hens[J].. Avian Dis, 1994,38 : 282-288.
7Gast R. K,Mitchell B W,Holt P S. Application of negative air Ionization for reducing experimental airborne transmission of Salmonlla enteritidis to chicks[J].Poultry Sci, 1999,78:57-61.
8Kang H,Loui C,Clsvijo R I,et al Survival characteristics of Salmonella enteriea serovar Enteritidis in chicken egg albumen[J]. Epidemiol Infect, 2006,134 : 967-976.
9Gantois I,Ducatelle R,Pasmans F,et al. Mechanisms of egg contamination by Salmonlla enteritidis [J]. FEMS Micobiology Reviews, 2009,33 : 718-738.