Publikationsdatenbank

A complex competitive exclusion culture reduces Campylobacter jejuni colonization in broiler chickens at slaughter age in vivo (2022)

Art

Zeitschriftenartikel / wissenschaftlicher Beitrag

Autoren

Szott, Vanessa (WE 10)

Reichelt, Benjamin (WE 10)

Friese, Anika (WE 10)

Roesler, Uwe (WE 10)

Quelle

Veterinary sciences

Bandzählung: 9

Heftzählung: 4

Seiten: Artikel 181

ISSN: 2306-7381

Sprache

Englisch

Verweise

URL (Volltext): https://www.mdpi.com/2306-7381/9/4/181

DOI: 10.3390/vetsci9040181

Pubmed: 35448680

Kontakt

Institut für Tier- und Umwelthygiene

Robert-von-Ostertag-Str. 7-13
14169 Berlin
+49 30 838 51845
tierhygiene@vetmed.fu-berlin.de

Abstract / Zusammenfassung

Diminishing Campylobacter prevalence in poultry flocks has proven to be extremely challenging. To date, efficacious control measures to reduce Campylobacter prevalence are still missing. A potential approach to control Campylobacter in modern poultry productions is to occupy its niche in the mucosal layer by administering live intestinal microbiota from adult chickens to dayold-chicks (competitive exclusion (CE)). Therefore, this in vivo study investigates the efficacy of a complex CE culture to reduce Campylobacter (C.) jejuni colonization in broiler chickens. For this purpose, the complex CE culture was applied twice: once by spray application to day-old chicks immediately after hatching (on the 1st day of life) and subsequently by an additional application via drinking water on the 25th day of life. We observed a consistent and statistically significant reduction of C. jejuni counts in cloacal swabs throughout the entire fattening period. At the end of the trial after necropsy (at 33 days of age), C. jejuni cecal counts also showed a statistically significant decrease of 1 log10 MPN/g compared to the control group. Likewise, colon counts were reduced by 2.0 log10 MPN/g. These results suggest that CE cultures can be considered a practically relevant control strategy to reduce C. jejuni colonization in broiler chickens on poultry farms.