Descriptive study of California egg layer premises and analysis of risk factors for Salmonella enterica serotype enteritidis as characterized by manure drag swabs

David M. Castellan, Hailu Kinde, Philip H Kass, Gregg Cutler, Richard E. Breitmeyer, Donald D. Bell, Ralph A. Ernst, David C. Kerr, Herbert E. Little, David Willoughby, Hans P. Riemann, Alex Ardans, Jill A. Snowdon, Douglas R. Kuney

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

This cross-sectional, double-blind study reports the prevalence of Salmonella enterica serotype enteritidis (SE) on California egg layer premises using single vs. pooled manure drag swabs and presents a description of egg production and management systems in the state and an initial analysis of risk factors for SE. The study included 91% of all known eligible egg premises in California, representing the majority of eggs produced in the state. The overall prevalence of SE on California egg layer premises was 10.5%, while 1.1% of all rows sampled were positive for SE. The percentage of positive rows for SE on any premises never exceeded 25% of the 16 swabs collected per premises. A description of egg production and management on California egg layer premises is presented. Statistically significant associations for SE were not evident and were limited because of sample size and the low prevalence of SE on California egg layer premises. Several biological and management factors, such as flock health, stage of production, manure management, ventilation, and watering systems, show trend associations with premises positive for SE and require further investigation. Manure drag swabs serve as a useful tool to validate the core components of an egg quality assurance program for SE based on process control principles.

Original languageEnglish (US)
Pages (from-to)550-561
Number of pages12
JournalAvian Diseases
Volume48
Issue number3
StatePublished - Sep 2004

Keywords

  • Egg layers
  • Manure drag swabs
  • Prevalence
  • Salmonella enterica serotype enteritidis

ASJC Scopus subject areas

  • Immunology
  • Cancer Research
  • veterinary(all)

Fingerprint Dive into the research topics of 'Descriptive study of California egg layer premises and analysis of risk factors for Salmonella enterica serotype enteritidis as characterized by manure drag swabs'. Together they form a unique fingerprint.

  • Cite this

    Castellan, D. M., Kinde, H., Kass, P. H., Cutler, G., Breitmeyer, R. E., Bell, D. D., Ernst, R. A., Kerr, D. C., Little, H. E., Willoughby, D., Riemann, H. P., Ardans, A., Snowdon, J. A., & Kuney, D. R. (2004). Descriptive study of California egg layer premises and analysis of risk factors for Salmonella enterica serotype enteritidis as characterized by manure drag swabs. Avian Diseases, 48(3), 550-561.