Related Experiment Video
Updated: Aug 11, 2026
07:24
A Hybrid DNA Extraction Method for the Qualitative and Quantitative Assessment of Bacterial Communities from Poultry Production Samples
Published on: December 10, 2014
A new selective enrichment procedure for isolating Pasteurella multocida from avian and environmental samples
M K Moore1, L Cicnjak-Chubbs, R J Gates
1National Biological Survey, National Wildlife Health Research Center, Madison, Wisconsin 53711.
Avian Diseases
|April 1, 1994
Summary
A new selective enrichment method effectively isolates Pasteurella multocida from wild birds and environmental samples. This advancement significantly improves detection rates compared to standard methods.
Area of Science:
- Veterinary Microbiology
- Wildlife Disease Ecology
- Bacteriology
Background:
- Pasteurella multocida is a significant pathogen in avian species, impacting wild bird populations.
- Accurate isolation of P. multocida from environmental and avian samples is crucial for disease surveillance and control.
- Existing isolation methods may lack the sensitivity and specificity required for diverse sample types.
Purpose of the Study:
- To develop and evaluate novel selective enrichment media for the isolation of Pasteurella multocida.
- To enhance the detection of P. multocida from challenging matrices like wild bird carcasses and environmental water samples.
- To compare the performance of the new media against conventional techniques.
Main Methods:
- Development of two selective media: Pasteurella multocida selective enrichment broth and Pasteurella multocida selective agar.
- Testing of 15 selective agents against P. multocida and common environmental/avian bacteria.
- Evaluation of media selectivity, sensitivity, host range specificity, and performance in isolating P. multocida from inoculated pond water and avian carcasses.
- Comparison with standard blood agar for P. multocida recovery.
Main Results:
- The new selective media demonstrated high selectivity and sensitivity for P. multocida.
- P. multocida was recovered from 84% of inoculated pond water samples using the new procedure.
- Standard blood agar yielded a 0% recovery rate for P. multocida from the same inoculated pond water samples.
- The developed media significantly outperformed standard blood agar in detecting low bacterial loads.
Conclusions:
- The novel selective enrichment procedure offers a superior method for isolating Pasteurella multocida from wild birds and environmental sources.
- This technique provides a valuable tool for wildlife disease monitoring and epidemiological studies.
- The enhanced sensitivity and specificity of the new media address limitations of traditional isolation methods.
