Journal
MICROORGANISMS
Volume 9, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/microorganisms9020263
Keywords
Salmonella; E; coli; feed; food safety; biocontrol
Categories
Funding
- Anitox Holding Inc.
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This study compared the effectiveness of different organic acid feed additive products in reducing Salmonella and avian pathogenic E. coli, finding that Finio had a significant impact while other products had limited effectiveness.
This study compared a novel non-formaldehyde combination product developed for pathogen control in animal feed Finio (A), with a panel of three commonly used organic acid feed additive products: Fysal (B), SalCURB K2 (C) and Salgard (D). Products were evaluated for their ability to reduce Salmonella Typhimurium DT104 and avian pathogenic Escherichia coli in poultry feed. A commercial layer-hen mash was treated with each product and then mixed with feed previously contaminated (via inoculated meat and bone meal) with either Salmonella or E. coli. After 24 h at room temperature, 10 replicate samples were taken from each preparation and plate counts were performed using a selective agar. All concentrations of product A (0.5, 1.0, 1.5, 2.0 and 2.5 kg per metric tonne (MT)) plus the higher concentration of products B and D (6.0 kg MT-1) significantly reduced Salmonella counts compared with those in the untreated control group (p < 0.05). Product C did not significantly reduce levels of Salmonella under these conditions. Because of the poor recovery of E. coli, statistical comparisons for this organism were limited in scope, but only product A at the highest concentration appeared to have eliminated it.
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