Translator Disclaimer
1 October 2003 Infection Models for Salmonella typhimurium DT110 in Day-Old and 14-Day-Old Broiler Chickens Kept in Isolators
Author Affiliations +
Abstract

SUMMARY. A series of experiments was undertaken to investigate the infection dynamics of various doses of S. typhimurium in day-old and 14-day-old broiler chickens kept in isolators. The infections were followed quantitatively in ceca and ileum by enumerating the colony forming units (cfu) of the challenge strain. It was found that the inoculation of 107 cfu of S. typhimurium to day-old chickens established stable cecal infection in all the animals for 35 days. For 14-day-old chickens, stable and lasting infections were seen with inoculation of 109 cfu. Lower doses yielded more variable results, and the bacteria were rapidly eliminated from most birds, especially in 14-day-old inoculated chickens. Salmonella was found in spleen and liver 2–3 days postinoculation. Salmonella was cleared from both organs or reduced to very low numbers within 3 weeks.

L. Bjerrum, R. M. Engberg, and K. Pedersen "Infection Models for Salmonella typhimurium DT110 in Day-Old and 14-Day-Old Broiler Chickens Kept in Isolators," Avian Diseases 47(4), 1474-1480, (1 October 2003). https://doi.org/10.1637/7051
Received: 3 April 2003; Published: 1 October 2003
JOURNAL ARTICLE
7 PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top