Probiotic Lactobacilli Do Not Protect Chickens against Salmonella Enteritidis Infection by Competitive Exclusion in the Intestinal Tract but in Feed, Outside the Chicken Host

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027162%3A_____%2F22%3AN0000141" target="_blank" >RIV/00027162:_____/22:N0000141 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2076-2607/10/2/219" target="_blank" >https://www.mdpi.com/2076-2607/10/2/219</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/microorganisms10020219" target="_blank" >10.3390/microorganisms10020219</a>

Result language

angličtina

Original language name

Probiotic Lactobacilli Do Not Protect Chickens against Salmonella Enteritidis Infection by Competitive Exclusion in the Intestinal Tract but in Feed, Outside the Chicken Host

Original language description

Lactobacilli are commonly used as probiotics in poultry to improve production parameters and to increase chicken resistance to enteric infections. However, lactobacilli do not efficiently colonise the chicken intestinal tract, and also, their anti-infection effect in vivo is sometimes questionable. In this study, we therefore evaluated the potential of a mixture of four Lactobacillus species (L. salivarius, L. reuteri, L. ingluviei and L. alvi) for the protection of chickens against Salmonella Enteritidis infection. Whenever the chickens were inoculated by lactobacilli and S. Enteritidis separately, there was no protective effect of lactobacilli. This means that when lactobacilli and S. Enteritidis are exposed to each other as late as in the crop of chickens, lactobacilli did not influence chicken resistance to S. Enteritidis at all. The only positive effect was recorded when the mixture of lactobacilli and S. Enteritidis was used for the inoculation of feed and the feed was anaerobically fermented for 1 to 5 days. In this case, chickens fed such a diet remained S. Enteritidis negative. In vitro experiments showed that the protective effect was caused by acidification of feed down to pH 4.6 due to lactobacilli fermentation and was associated with S. Enteritidis inactivation. The probiotic effect of lactobacilli was thus expressed in the feed, outside the chicken host.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

40301 - Veterinary science

Project

<a href="/en/project/QK1810462" target="_blank" >QK1810462: Manipulation of the intestinal microbiota of pigs and poultry to reduce E. coli infections and use of antimicrobials</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Microorganisms

ISSN

2076-2607

e-ISSN

2076-2607

Volume of the periodical

10

Issue of the periodical within the volume

2

Country of publishing house

CH - SWITZERLAND

Number of pages

13

Pages from-to

"219"

UT code for WoS article

000793010400001

EID of the result in the Scopus database

2-s2.0-85122931161