Salmonella Enteritidis reduction in layer ceca with a Bacillus probiotic

Veterinary World
Paul T PriceMichael D Sims

Abstract

Salmonella Enteritidis (SE) is a significant foodborne pathogen that can often be traced to poultry and poultry products. This study aims to evaluate the ability of three commonly used non-antimicrobial feed additives in reducing the amount of SE in the ceca of laying type pullets. On day 0, 60 Hy-Line Brown pullets aged 9 weeks were allocated to individual cages in 15 replicate blocks of four pens. Pullets were administered a mash feed provided ad libitum without supplementation (control) or with dietary supplementation of 454 g/ton yeast cell wall (YCW), or 454 g/ton Bacillus spp. probiotic, or 1133 g/ton yeast culture (YC). On day 3 of the trial, all birds were orally administered 3×107 CFU of a nalidixic acid-resistant SE. On day 10, 7 days after inoculation, all birds were humanely euthanized, and the ceca were aseptically removed for analysis. There was no significant difference in the prevalence of SE among treatments. The mean quantity of SE detected in the ceca expressed in log10 most probable number/g was 2.52 in the control, 2.49 in the YCW treatment, 1.73 in the probiotic treatment, and 1.66 in the YC treatment. The reduction between control and probiotic and control and YC was significant (p=0.021). This study demo...Continue Reading

References

Jun 7, 2006·Avian Pathology : Journal of the W.V.P.A·F Van ImmerseelR Ducatelle
Jul 14, 2006·Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America·Christopher R Braden
Aug 17, 2010·Poultry Science·C M CoxR A Dalloul
May 6, 2015·Journal of Animal Physiology and Animal Nutrition·J FowlerC A Bailey

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Jun 3, 2021·Animals : an Open Access Journal From MDPI·Katarzyna KrysiakMariusz Korczyński

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