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Comparison of resistance of different poultry lines to intramuscular or oral inoculation by Salmonella enteritidis

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HAL Id: hal-00902235

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Submitted on 1 Jan 1994

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Comparison of resistance of different poultry lines to intramuscular or oral inoculation by Salmonella

enteritidis

C Beaumont, J Protais, P Colin, Jf Guillot, F Bellatif, C Mouline, F Lantier, I Lantier, O Girard, P Pardon

To cite this version:

C Beaumont, J Protais, P Colin, Jf Guillot, F Bellatif, et al.. Comparison of resistance of different

poultry lines to intramuscular or oral inoculation by Salmonella enteritidis. Veterinary Research,

BioMed Central, 1994, 25 (4), pp.412-412. �hal-00902235�

(2)

Comparison

of resistance of different

poultry

lines to intramuscular or oral ino- culation

by

Salmonella enteritidis.

C Beaumont J Protais 2 P Colin JF Guillot F Bellatif C Mouline F Lantier I Lantier4 O Girard4 P Par- don

4

(’INRA,

Station de Recherches Avi-

coles,

37380

Nouzilly; 2 CNEVA,

Labora- toire Central de Recherches Avicoles et

Porcines,

BP

53,

Le Tertre de la

Motte,

22440

Ploufragan; 3 INRA,

Station de Patho-

logie

Aviaire et

Parasitologie,

37380 Nou-

zilly; 4 INRA,

Station de

Pathologie

Infec-

tieuse et

Immunologie,

37380

Nouzilly, France)

The resistance of 9

poultry

lines to

experi-

mental infection

by

Salmonella enteritidis

(Se)

was

compared

at 2 ages. Y11 is a

meat-type

strain selected

by

Ricard

(INRA),

B13 is a

histocompatible

inbred White

Leghorn,

PA12 is a White

Leghorn,

C1-C3

are 3 commercial strains and

H-SRBC,

L-

SRBC,

C-SRBC are the lines selected for

high

or low

antibody

levels

against sheep

red blood cells

by

Van Der

Zijpp (1983)

as

well as their control line. After intramuscu- lar inoculation of

day-old

chickens with 4

doses,

lethal doses 50%

(LD 50 )

differed

by

more than 3

logarithms.

Y11 was resistant

(LD

50

, 10 5 Se), C1, C2,

C3 and B13 were

susceptible (LD 50

< 102

Se)

and the oth-

ers were intermediate.

Y11, C2,

PA12 and B13 were further

investigated by

oral inoc-

ulation of

day-old

chickens

(5

x 10! or 5 x 10

8Se per

animal).

The resistance of the 4 lines to

lethality

after oral infection ranked in the same order as their resistance to lethal-

ity

after intramuscular inoculation. Four weeks after oral

inoculation,

the

spleens,

livers and caeca of

surviving

animals were

cultured for Se. The

spleens

and livers of resistant animals were less often contami- i- nated than those of

susceptible

animals. In contrast, very little difference could be observed in the caeca. The same lines were

tested for resistance to oral inoculation at the

peak

of

laying

with

10 g

Se per animal.

All eggs laid

during

4 weeks after inocula- tion were

investigated

and the bacteria in the

yolk

were

distinguished

from those on

the shell. C2 shed and excreted more Se than the other lines. Y11 laid no contami- nated eggs whereas B13 and PA12 laid

only

one contaminated egg. As for intestinal and caecal

shedding,

C2 was the most sus-

ceptible,

Y11 was intermediate and the oth-

ers were more resistant. C2 was

by

far the

most

susceptible

to

spleen

and liver con-

taminations. These results observed on

chicks are in

agreement

with Bumstead and Barrow’s

(1988)

observations on inbred strains. These authors

suggested

the exis-

tence of a

major

gene. Measurements of resistance of crosses of our lines are

needed to conclude to the

putative

role of

such a gene. This gene could be an

equiv-

alent of the Se resistance gene

Ity/Bcg/Lsh

discovered

by

Plant and

Glynn (1976).

RFLP

polymorphisms

between B13 and Y11 were evidenced with Southern

migra-

tion for 4 murine marker genes, which are

located,

at least in

mice,

on both sides of the

Ity/Bcg/Lsh

gene. The differences between

ranking

of the lines for resistance to oral inoculation at the 2 ages could be due to the

physiological

status, age, dose and microflora differences. The time between inoculation and culture may also have

played

a role. Kinetics of intestinal colonisation and organ infection are needed to conclude this

study.

References

Bumstead N, Barrow PA

(1988)

Genetics of resistance to Salmonella

typhimurium

in

newly

hatched chicks Br Poult Sci 29, 521- 529

Plant JE,

Glynn

AA

(1976)

Genetics of resistance to infection with Salmonella typhimurium in mice. J Infect Dis 133, 72- 78

Van der

Zijpp,

AJ

(1983) Breeding

for immune

responsiveness

and disease resistance.

World’s Poult Sci J 39, 118-131 1

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