Theses and Dissertations

Issuing Body

Mississippi State University

Advisor

Kiess, S. Aaron

Committee Member

McDaniel, Christopher

Committee Member

Davis, Jeremiah

Committee Member

Purswell, Jody

Date of Degree

8-7-2010

Document Type

Graduate Thesis - Open Access

Major

Agricultural Science

Degree Name

Master of Science

College

College of Agriculture and Life Sciences

Department

Department of Poultry Science

Abstract

Campylobacter is the leading cause of bacterial gastroenteritis in the United States. The objective of this study was to investigate the prevalence of Campylobacter in newly constructed broiler houses and compare three microaerophilic gas delivery methods used to culture Campylobacter in the laboratory. Of 2,300 litter, 900 fecal, and 45 water samples, only 5, 6 and 1 of the samples, respectively, were confirmed positive. style='mso-spacerun:yes'> Results indicated litter moisture content was different across day, location and house. An interaction was detected for litter pH between day, location and flock. Temperatures averaged 26.8°C inside and 27.6°C outside. style='mso-spacerun:yes'> No difference in colony counts were detected among the gas delivery methods. In conclusion, the newly constructed houses showed no significant prevalence of Campylobacter. style='mso-spacerun:yes'> High litter pH, low temperatures, and other onarm management strategies may have suppressed Campylobacter’s ability to colonize the litter. When selecting a gas delivery method price and space should be considered.

URI

https://hdl.handle.net/11668/15413

Comments

chambers||microaerophilic||litter||broiler||Campylobacter jejuni

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