Impact of commercial and autogenous Escherichia coli vaccine combination on broiler breeder stock performance, gross pathology, and diversity of Escherichia coli isolates

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16170%2F22%3A43880284" target="_blank" >RIV/62157124:16170/22:43880284 - isvavai.cz</a>

Alternative codes found

RIV/62157124:16810/22:43880284 RIV/62157124:16270/22:43880284

Result on the web

<a href="https://actavet.vfu.cz/media/pdf/actavet_2022091040383.pdf" target="_blank" >https://actavet.vfu.cz/media/pdf/actavet_2022091040383.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2754/avb202291040383" target="_blank" >10.2754/avb202291040383</a>

Result language

angličtina

Original language name

Impact of commercial and autogenous Escherichia coli vaccine combination on broiler breeder stock performance, gross pathology, and diversity of Escherichia coli isolates

Original language description

Avian colibacillosis is one of the main causes of economic losses in the poultry industry worldwide. Vaccination could help to prevent infection during the laying period on broiler breeder farms. Effective vaccination against avian pathogenic Escherichia coli (APEC) may be an essential step for protection of poultry flocks depending on the region where they are raised. The aim of this study was to investigate the additive protective effect of an autogenous E. coli vaccine in broiler breeders pre-vaccinated with a licensed E. coli vaccine (Poulvac (R)). Our field study was partially blinded and parallel group designed. Group 1 included 24 000 laying hens vaccinated by Poulvac (R). Group 2 comprised 12 000 laying hens vaccinated by Poulvac (R) and additionally, by an autogenous E. coli vaccine via intramuscular application before transfer. The effectiveness of vaccination in both groups was evaluated according to the results of gross pathology, bacteriology (isolation and characterization of E. coli) and utility indicators. Based on the pathology, the occurrence of E. coli polyserositis syndrome (EPS), salpingoperitonitis syndrom (SPS), and haemorrhagic septicaemia was decreased in Group 2 compared to Group 1. The difference in the occurrence of EPS (P &lt; 0.001) and SPS (P = 0.0342) was significant. The proportion of serotype O78 among E. coli isolated from Group 1 and Group 2 was also significant (P = 0.0178). The effective and multi-serotype vaccination program in order to expand heterologous protection of laying hens and combination of commercial and autogenous vaccines seems to be a promising preventive management tool.

Czech name

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Czech description

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Type

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

CEP classification

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OECD FORD branch

40301 - Veterinary science

Project

<a href="/en/project/QK22020066" target="_blank" >QK22020066: Preventive measures towards restricted and rational use of antibiotics in broiler production in the Czech Republic</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2022

Confidentiality

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

Name of the periodical

Acta veterinaria Brno

ISSN

0001-7213

e-ISSN

1801-7576

Volume of the periodical

91

Issue of the periodical within the volume

4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

8

Pages from-to

383-390

UT code for WoS article

000880783400009

EID of the result in the Scopus database

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