Effect of a Commerical Competitive Exclusion Product on the Colonization of Salmonella infantis in Day-Old Pheasant Chicks
| Autor: | D. J. Renney, C. Schneitz |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Colony-forming unit
Salmonella Infections Animal Veterinary medicine Salmonella General Immunology and Microbiology biology medicine.disease_cause Pheasant Immunity Innate Competitive exclusion Microbiology Food Animals Untreated control biology.animal medicine Animals Animal Science and Zoology Colonization Abstract Summary Poultry Diseases Salmonella infantis |
| Zdroj: | Avian Diseases. 47:1448-1451 |
| ISSN: | 1938-4351 0005-2086 |
| DOI: | 10.1637/7031 |
| Popis: | SUMMARY. One-day-of-age pheasant chicks were treated orally with the competitive exclusion product Broilact® in three replicate trials. The following day the treated chicks and untreated control chicks were challenged likewise with approximately 103 colony-forming units (cfu) of Salmonella infantis. Five days after challenge the cecal contents of the birds were examined quantitatively and by enrichment for S. infantis. In all three trials Broilact® effectively reduced colonization of the challenge organism, the mean infection factor (IF) value (the logarithmic number of colony forming units of salmonella organisms per gram of cecal contents) for the treated groups being 2.9 and that for the salmonella control groups 8.4. Mortality during the 1 week rearing period was 5.0% in the Broilact® treated groups and 8.5% in the salmonella control groups. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|