Effect of dietary lactose and cell concentration on the ability of a continuous-flow-derived bacterial culture to control Salmonella cecal colonization in broiler chickens
1994
Nisbet, D.J. | Corrier, D.E. | Scanlan, C.M. | Hollister, A.G. | Beier, R.C. | DeLoach, J.R.
The effect of dietary lactose and of cell concentration of a continuous-flow (CF) derived bacterial culture on Salmonella typhimurium cecal colonization in 10-d-old broiler chickens was examined. One-day-old chicks were provided 1) no CF culture and the control diet; 2) no culture and a 2% lactose diet; 3) CF culture (108 or 1011 anaerobic cfu) and control diet; or 4) CF culture (108 or 1011 anaerobic cfu) and 2 to 4% lactose diet. All groups were challenged orally with 104 S. typhimurium at 3 d of age. Salmonella typhimurium growth in cecal contents was significantly decreased (P < .05) at 10 d of age when 2% lactose was used in combination with CF culture containing 108 or 1011 anaerobic cfu. The protection factor (log10 Salmonella control diet divided by log10 Salmonella treatment group) for these treatment groups was 2.49 and 9.26, respectively. Results indicate that birds treated with CF culture and maintained on 2% dietary lactose are protected against S. typhimurium colonization. Additionally, inoculating birds with CF culture containing a higher concentration of anaerobic colony-forming units resulted in a substantially higher protection factor.
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by National Agricultural Library