Defining susceptibility of broiler chicks to colibacillosis

Birgitte Ask; E. H. van der Waaij; J. H. H. van Eck; J. A. M. van Arendonk; J. A. Stegeman

Defining susceptibility of broiler chicks to colibacillosis

Birgitte Ask, E. H. van der Waaij, J. H. H. van Eck, J. A. M. van Arendonk, J. A. Stegeman

17 Citations (Scopus)

Abstract

This study aimed to define the susceptibility of broilers to colibacillosis through quantification of clinical
responses and to examine the relationship between susceptibility and growth retardation. A challenge
experiment was carried out twice. In each trial, 192 chicks were challenged intratracheally with Escherichia
coli (E. coli ) at 7 days of age and 160 chicks served as controls. Surviving chicks were euthanized at 14 or 15
days. Parameters measured were: daily mortality, lesion scores, body weight at 1, 4, 7, 10, 12 and 14 or 15
days and feeding behaviour at 6, 11 and 13 days. The results were reproducible, and increasing susceptibility
to colibacillosis was defined by four categories: chicks without lesions, chicks with airsacculitis but no
systemic lesions, chicks with systemic lesions, and chicks that die. Increasing susceptibility was associated
with increasing growth retardation, but growth retardation was not inevitably linked to challenge with
E. coli.

Original language	English
Journal	Avian Pathology
Volume	35
Issue number	2
Pages (from-to)	147-153
Number of pages	7
ISSN	0307-9457
Publication status	Published - 1 Apr 2006
Externally published	Yes

Cite this

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title = "Defining susceptibility of broiler chicks to colibacillosis",

abstract = "This study aimed to define the susceptibility of broilers to colibacillosis through quantification of clinicalresponses and to examine the relationship between susceptibility and growth retardation. A challengeexperiment was carried out twice. In each trial, 192 chicks were challenged intratracheally with Escherichiacoli (E. coli ) at 7 days of age and 160 chicks served as controls. Surviving chicks were euthanized at 14 or 15days. Parameters measured were: daily mortality, lesion scores, body weight at 1, 4, 7, 10, 12 and 14 or 15days and feeding behaviour at 6, 11 and 13 days. The results were reproducible, and increasing susceptibilityto colibacillosis was defined by four categories: chicks without lesions, chicks with airsacculitis but nosystemic lesions, chicks with systemic lesions, and chicks that die. Increasing susceptibility was associatedwith increasing growth retardation, but growth retardation was not inevitably linked to challenge withE. coli.",

author = "Birgitte Ask and {van der Waaij}, {E. H.} and {van Eck}, {J. H. H.} and {van Arendonk}, {J. A. M.} and Stegeman, {J. A.}",

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TY - JOUR

T1 - Defining susceptibility of broiler chicks to colibacillosis

AU - Ask, Birgitte

AU - van der Waaij, E. H.

AU - van Eck, J. H. H.

AU - van Arendonk, J. A. M.

AU - Stegeman, J. A.

N1 - Paper id:: DOI: 10.1080/03079450600597998

PY - 2006/4/1

Y1 - 2006/4/1

N2 - This study aimed to define the susceptibility of broilers to colibacillosis through quantification of clinicalresponses and to examine the relationship between susceptibility and growth retardation. A challengeexperiment was carried out twice. In each trial, 192 chicks were challenged intratracheally with Escherichiacoli (E. coli ) at 7 days of age and 160 chicks served as controls. Surviving chicks were euthanized at 14 or 15days. Parameters measured were: daily mortality, lesion scores, body weight at 1, 4, 7, 10, 12 and 14 or 15days and feeding behaviour at 6, 11 and 13 days. The results were reproducible, and increasing susceptibilityto colibacillosis was defined by four categories: chicks without lesions, chicks with airsacculitis but nosystemic lesions, chicks with systemic lesions, and chicks that die. Increasing susceptibility was associatedwith increasing growth retardation, but growth retardation was not inevitably linked to challenge withE. coli.

AB - This study aimed to define the susceptibility of broilers to colibacillosis through quantification of clinicalresponses and to examine the relationship between susceptibility and growth retardation. A challengeexperiment was carried out twice. In each trial, 192 chicks were challenged intratracheally with Escherichiacoli (E. coli ) at 7 days of age and 160 chicks served as controls. Surviving chicks were euthanized at 14 or 15days. Parameters measured were: daily mortality, lesion scores, body weight at 1, 4, 7, 10, 12 and 14 or 15days and feeding behaviour at 6, 11 and 13 days. The results were reproducible, and increasing susceptibilityto colibacillosis was defined by four categories: chicks without lesions, chicks with airsacculitis but nosystemic lesions, chicks with systemic lesions, and chicks that die. Increasing susceptibility was associatedwith increasing growth retardation, but growth retardation was not inevitably linked to challenge withE. coli.

M3 - Journal article

SN - 0307-9457

VL - 35

SP - 147

EP - 153

JO - Avian Pathology

JF - Avian Pathology

IS - 2

ER -

Defining susceptibility of broiler chicks to colibacillosis

Abstract

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