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Applied and Environmental Microbiology, January 2007, p. 353-356, Vol. 73, No. 1
0099-2240/07/$08.00+0     doi:10.1128/AEM.01931-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Identification and Quantification of Methanogenic Archaea in Adult Chicken Ceca{triangledown}

Suwat Saengkerdsub,1,{dagger} Robin C. Anderson,2 Heather H. Wilkinson,3 Woo-Kyun Kim,1,{ddagger} David J. Nisbet,2 and Steven C. Ricke1*

Department of Poultry Science, Texas A&M University, College Station, Texas 77843,1 United States Department of Agriculture, Agricultural Research Service, Southern Plains Agricultural Research Center, College Station, Texas 77845,2 Department of Plant Pathology and Microbiology, Texas A&M University, College Station, Texas 778453

Received 14 August 2006/ Accepted 27 October 2006

By using molecular methods for the identification and quantification of methanogenic archaea in adult chicken ceca, 16S rRNA genes of 11 different phylotypes, 10 of which were 99% similar to Methanobrevibacter woesei, were found. Methanogen populations, as assessed by cultivation, and the 16S rRNA copy number were between 6.38 and 8.23 cells/g (wet weight) and 5.50 and 7.19 log10/g (wet weight), respectively.

* Corresponding author. Present address: University of Arkansas, Department of Food Science, 2650 N. Young Ave., Fayetteville, AR 72704-5690. Phone: (479) 575-4605. Fax: (479) 575-6936. E-mail: sricke{at}uark.edu.

{triangledown} Published ahead of print on 3 November 2006.

{dagger} Present address: Department of Food Science and Human Nutrition, 2312 Food Science Building, Ames, IA 50011.

{ddagger} Present address: Geffen School of Medicine, Department of Cardiology, University of California, Los Angeles, CA 90995.

Applied and Environmental Microbiology, January 2007, p. 353-356, Vol. 73, No. 1
0099-2240/07/$08.00+0     doi:10.1128/AEM.01931-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.



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