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TYPLEX® Chelate, a novel feed additive, inhibits Campylobacter jejuni biofilm formation and cecal colonization in broiler chickens

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journal contribution
posted on 24.09.2019, 14:57 by F Khattak, V Paschalis, M Green, JGM Houdijk, P Soultanas, J Mahdavi
Reducing Campylobacter spp. carriage in poultry is challenging, but essential to control this major cause of human bacterial gastroenteritis worldwide. Although much is known about the mechanisms and route of Campylobacter spp. colonization in poultry, the literature is scarce on antibiotic-free solutions to combat Campylobacter spp. colonization in poultry. In vitro and in vivo studies were conducted to investigate the role of TYPLEX® Chelate (ferric tyrosine), a novel feed additive, in inhibiting Campylobacter jejuni (C. jejuni) biofilm formation and reducing C. jejuni and Escherichia coli (E. coli) colonization in broiler chickens at market age. In an in vitro study, the inhibitory effect on C. jejuni biofilm formation using a plastic bead assay was investigated. The results demonstrated that TYPLEX® Chelate significantly reduces biofilm formation. In an in vivo study, 800 broilers (one d old) were randomly allocated to 4 dietary treatments in a randomized block design, each having 10 replicate pens with 20 birds per pen. At d 21, all birds were challenged with C. jejuni via seeded litter. At d 42, cecal samples were collected and tested for volatile fatty acid (VFA) concentrations and C. jejuni and E. coli counts. The results showed that TYPLEX® Chelate reduced the carriage of C. jejuni and E. coli in poultry by 2 and 1 log10 per gram cecal sample, respectively, and increased cecal VFA concentrations. These findings support TYPLEX® Chelate as a novel non-antibiotic feed additive that may help produce poultry with a lower public health risk of Campylobacteriosis.

Funding

The work was funded by Akeso Biomedical, Inc., Waltham, MA, and SRUC. SRUC receives support from the Scottish Government.

History

Citation

Poultry Science, 2018, 97 (4), pp. 1391-1399

Author affiliation

/Organisation/COLLEGE OF LIFE SCIENCES/Biological Sciences/Molecular & Cell Biology

Version

VoR (Version of Record)

Published in

Poultry Science

Publisher

Oxford University Press (OUP), Poultry Science Association, Federation of Animal Science Societies

issn

0032-5791

eissn

1525-3171

Acceptance date

01/12/2017

Copyright date

2018

Available date

24/09/2019

Publisher version

https://academic.oup.com/ps/article/97/4/1391/4864308

Language

en

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