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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�
Comparison
of resistance of differentpoultry
lines to intramuscular or oral ino- culationby
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,
37380Nouzilly; 2 CNEVA,
Labora- toire Central de Recherches Avicoles etPorcines,
BP53,
Le Tertre de laMotte,
22440Ploufragan; 3 INRA,
Station de Patho-logie
Aviaire etParasitologie,
37380 Nou-zilly; 4 INRA,
Station dePathologie
Infec-tieuse et
Immunologie,
37380Nouzilly, France)
The resistance of 9
poultry
lines toexperi-
mental infection
by
Salmonella enteritidis(Se)
wascompared
at 2 ages. Y11 is ameat-type
strain selectedby
Ricard(INRA),
B13 is a
histocompatible
inbred WhiteLeghorn,
PA12 is a WhiteLeghorn,
C1-C3are 3 commercial strains and
H-SRBC,
L-SRBC,
C-SRBC are the lines selected forhigh
or lowantibody
levelsagainst sheep
red blood cells
by
Van DerZijpp (1983)
aswell as their control line. After intramuscu- lar inoculation of
day-old
chickens with 4doses,
lethal doses 50%(LD 50 )
differedby
more than 3
logarithms.
Y11 was resistant(LD
50
, 10 5 Se), C1, C2,
C3 and B13 weresusceptible (LD 50
< 102Se)
and the oth-ers were intermediate.
Y11, C2,
PA12 and B13 were furtherinvestigated by
oral inoc-ulation of
day-old
chickens(5
x 10! or 5 x 108Se per
animal).
The resistance of the 4 lines tolethality
after oral infection ranked in the same order as their resistance to lethal-ity
after intramuscular inoculation. Four weeks after oralinoculation,
thespleens,
livers and caeca of
surviving
animals werecultured for Se. The
spleens
and livers of resistant animals were less often contami- i- nated than those ofsusceptible
animals. In contrast, very little difference could be observed in the caeca. The same lines weretested for resistance to oral inoculation at the
peak
oflaying
with10 g
Se per animal.All eggs laid
during
4 weeks after inocula- tion wereinvestigated
and the bacteria in theyolk
weredistinguished
from those onthe 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 caecalshedding,
C2 was the most sus-ceptible,
Y11 was intermediate and the oth-ers were more resistant. C2 was
by
far themost
susceptible
tospleen
and liver con-taminations. These results observed on
chicks are in
agreement
with Bumstead and Barrow’s(1988)
observations on inbred strains. These authorssuggested
the exis-tence of a
major
gene. Measurements of resistance of crosses of our lines areneeded to conclude to the
putative
role ofsuch a gene. This gene could be an
equiv-
alent of the Se resistance gene
Ity/Bcg/Lsh
discovered
by
Plant andGlynn (1976).
RFLP
polymorphisms
between B13 and Y11 were evidenced with Southernmigra-
tion for 4 murine marker genes, which are
located,
at least inmice,
on both sides of theIty/Bcg/Lsh
gene. The differences betweenranking
of the lines for resistance to oral inoculation at the 2 ages could be due to thephysiological
status, age, dose and microflora differences. The time between inoculation and culture may also haveplayed
a role. Kinetics of intestinal colonisation and organ infection are needed to conclude thisstudy.
References
Bumstead N, Barrow PA
(1988)
Genetics of resistance to Salmonellatyphimurium
innewly
hatched chicks Br Poult Sci 29, 521- 529Plant JE,
Glynn
AA(1976)
Genetics of resistance to infection with Salmonella typhimurium in mice. J Infect Dis 133, 72- 78Van der
Zijpp,
AJ(1983) Breeding
for immuneresponsiveness
and disease resistance.World’s Poult Sci J 39, 118-131 1