Comparison of environmental and egg microbiology associated with conventional and free-range laying hen management

Poultry Science

Volumn 90, Issue 9, 2011, Pages 2063-2068

  Jones, D R ^a   Anderson, K E ^b   Musgrove, M T ^a  

^a AGRICULTURAL RESEARCH SERVICE   (United States)

^b NORTH CAROLINA STATE UNIVERSITY   (United States)

Author keywords

Conventional cage; Egg microbiology; Environmental; Free range; Shell egg

Indexed keywords

EID: 80051759595     PISSN: 00325791     EISSN: 15253171     Source Type: Journal    
DOI: 10.3382/ps.2010-01139     Document Type: Article

References (20)

1. American Egg Board. 2010. Egg industry facts. Accessed Aug. 25, 2010. http://www.aeb.org/egg-industry/industry-facts/shell-eggdistribution.
2. Anderson, K. E. 2008. Report on pullet rearing period. 37th North Carolina layer performance and management test. North Carolina Cooperative Extension Service bulletin. Vol 37, no. 2. North Carolina State University, Raleigh. Accessed Aug. 26, 2010. http://www.ces.ncsu.edu/depts/poulsci/tech_manuals/layer_reports/37_grow_report.pdf.
3. Anderson, K. E. 2009. Single production cycle report of the 37th North Carolina layer performance and management test. North Carolina Cooperative Extension Service bulletin. Vol 37, no. 4. North Carolina State University, Raleigh. Accessed Aug. 26, 2010. http://www.ces.ncsu.edu/depts/poulsci/tech_manuals/layer_reports/37_single_cycle_report.pdf.
4. De Reu, K., K. Grijspeerdt, M. Heyndrickx, M. Uyttendaele, J. Debevere, and L. Herman. 2006. Bacterial shell contamination in the egg collection chains of different housing systems for laying hens. Br. Poult. Sci. 47:163-172.
5. De Reu, K., K. Grijspeerdt, M. Heyndrickx, J. Zoons, K. De Baere, M. Uyttendaele, J. Debevere, and L. Herman. 2005. Bacterial eggshell contamination in conventional cages, furnished cages, and aviary housing systems for laying hens. Br. Poult. Sci. 46:149-155.
6. De Reu, K., T. B. Rodenburg, K. Grijspeerdt, W. Messens, M. Heyndrickx, F. A. M. Tuyttens, B. Sonck, J. Zoons, and L. Herman. 2009. Bacteriological contamination, dirt, and cracks of eggshells in furnished cages and noncage systems for laying hens: An international on-farm comparison. Poult. Sci. 88:2442-2448.
7. FDA. 2009. Prevention of Salmonella Enteritidis in shell eggs during production, storage, and transportation; Final rule. Accessed Apr. 27, 2010. http://edocket.access.gpo.gov/2009/pdf/E9-16119.pdf.
8. IBISWorld. 2009. IBISWorld Industry Report. Chicken Egg Production in the US: 11231. April 15:1-45.
9. Jones, D. R., M. T. Musgrove, and J. K. Northcutt. 2004. Variations in external and internal microbial populations in shell eggs during extended storage. J. Food Prot. 67:2657-2660.
10. Mallet, S., V. Guesdon, A. M. H. Ahmed, and Y. Nys. 2006. Comparison of eggshell hygiene in two housing systems: Standard and furnished cages. Br. Poult. Sci. 47:30-35.
11. Messens, W., K. Grijspeerdt, K. De Reu, B. De Ketelaere, K. Mertens, F. Bamelis, B. Kemps, J. De Baerdemaeker, E. Decuypere, and L. Herman. 2007. Eggshell penetration of various types of hens' eggs by Salmonella enterica serovar Enteritidis. J. Food Prot. 70:623-628.
12. Moats, W. A. 1981. Factors affecting bacterial loads on shells of commercially washed eggs. Poult. Sci. 60:2084-2090.
13. Musgrove, M. T., D. R. Jones, J. K. Northcutt, M. A. Harrison, and N. A. Cox. 2005a. Impact of commercial processing on the microbiology of shell eggs. J. Food Prot. 68:2367-2375.
14. Musgrove, M. T., D. R. Jones, J. K. Northcutt, M. A. Harrison, N. A. Cox, K. D. Ingram, and A. J. Hinton Jr. 2005b. Recovery of Salmonella from commercial shell eggs by shell rinse and shell crush methodologies. Poult. Sci. 84:1955-1958.
15. SAS Institute. 2002. SAS User's Guide. Version 9.1. SAS Institute Inc., Cary, NC.
16. Singh, R., K. M. Cheng, and F. G. Silversides. 2009. Production performance and egg quality of four strains of laying hens kept in conventional cages and floor pens. Poult. Sci. 88:256-264.
17. Sulonen, J., R. Kärenlampi, U. Holma, and M. L. Hänninen. 2007. Campylobacter in Finnish organic laying hens in autumn 2003 and spring 2004. Poult. Sci. 86:1223-1228.
18. USDA. 2000a. United States standards, grades, and weight classes for shell eggs. AMS 56. Accessed Sep. 8, 2010. http://www.ams.usda.gov/AMSv1.0/getfile?dDocName=STELDEV3004376.
19. USDA. 2000b. National organic program. 7 CFR part 205. Accessed Aug. 25, 2010. http://www.access.gpo.gov/nara/cfr/waisidx_10/7cfr205_10.html.
20. USDA. 2005. Voluntary grading of shell eggs. 7 CFR part 56. Accessed Apr. 12, 2010. http://www.access.gpo.gov/nara/cfr/waisidx_08/7cfr56_08.html.