Diversity and Abundance of Zoonotic Pathogens and Indicators in Cattle Feedlot Manures in Australia.
Summary of "Diversity and Abundance of Zoonotic Pathogens and Indicators in Cattle Feedlot Manures in Australia."
The occurrence of ten pathogens and three fecal indicators was assessed by quantitative PCR in Australian cattle feedlot manures. Most samples tested positive for one or more pathogens. 10(2) to 10(7) genome copies g(-1) manure (dry wt) were recovered for the dominant pathogens Campylobacter jejuni, Listeria monocytogenes, Giardia spp., Cryptosporidium spp. and eaeA-positive Escherichia coli.
UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney NSW 2052, Australia; Feedlot Services Australia Pty Ltd (FSA Consulting), 11 Clifford St, Toowoomba Qld 4350, Australia; National Exposure Res
This article was published in the following journal.
Name: Applied and environmental microbiology
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/20802080
- DOI: http://dx.doi.org/10.1128/AEM.01095-10
Medical and Biotech [MESH] Definitions
The phenomenon of immense variability characteristic of ANTIBODIES. It enables the IMMUNE SYSTEM to react specifically against the essentially unlimited kinds of ANTIGENS it encounters. Antibody diversity is accounted for by three main theories: (1) the Germ Line Theory, which holds that each antibody-producing cell has genes coding for all possible antibody specificities, but expresses only the one stimulated by antigen; (2) the Somatic Mutation Theory, which holds that antibody-producing cells contain only a few genes, which produce antibody diversity by mutation; and (3) the Gene Rearrangement Theory, which holds that antibody diversity is generated by the rearrangement of IMMUNOGLOBULIN VARIABLE REGION gene segments during the differentiation of the ANTIBODY-PRODUCING CELLS.
A family of gram-negative bacteria usually found in soil or water and including many plant pathogens and a few animal pathogens.
Bovine Respiratory Disease Complex
A multifactorial disease of CATTLE resulting from complex interactions between environmental factors, host factors, and pathogens. The environmental factors act as stressors adversely affecting the IMMUNE SYSTEM and other host defenses and enhancing transmission of infecting agents.
Pneumonia, Atypical Interstitial, Of Cattle
A cattle disease of uncertain cause, probably an allergic reaction.
Indicators And Reagents
Substances used for the detection, identification, analysis, etc. of chemical, biological, or pathologic processes or conditions. Indicators are substances that change in physical appearance, e.g., color, at or approaching the endpoint of a chemical titration, e.g., on the passage between acidity and alkalinity. Reagents are substances used for the detection or determination of another substance by chemical or microscopical means, especially analysis. Types of reagents are precipitants, solvents, oxidizers, reducers, fluxes, and colorimetric reagents. (From Grant & Hackh's Chemical Dictionary, 5th ed, p301, p499)
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