Avian Pathology,
Год журнала:
2022,
Номер
52(2), С. 108 - 118
Опубликована: Дек. 1, 2022
Necrotic
enteritis
(NE),
caused
by
Clostridium
perfringens,
is
an
economically
important
disease
of
chickens.
Although
NE
pathogenesis
moderately
well
studied,
the
host
immune
responses
against
C.
perfringens
are
poorly
understood.
The
present
study
used
experimental
model
to
characterize
lymphoid
in
caecal
tonsils
(CT),
bursa
Fabricius,
Harderian
gland
(HG)
and
spleen
tissues
broiler
chickens
infected
with
four
netB+
strains
(CP1,
CP5,
CP18,
CP26),
which
CP18
CP26
also
carried
tpeL
gene.
gross
histopathological
lesions
revealed
CP5
be
avirulent,
while
CP1,
were
virulent
being
"very
virulent".
Gene
expression
analysis
showed
that,
induced
a
significantly
upregulated
pro-inflammatory
IL-1β
gene
CT,
CP26-infected
birds
had
higher
CT
transcription
IFNγ
IL-6
genes
compared
CP5-infected
or
uninfected
Furthermore,
infection
led
increased
bursal
HG
anti-inflammatory/regulatory
genes,
IL-10
TGFβ,
control,
CP1
groups.
Additionally,
splenic
pro-
anti-inflammatory
transcriptional
changes
observed
only
An
antibody-mediated
response,
as
characterized
IL-4
and/or
IL-13
elevated
IgM
levels
strains,
particularly
group
controls,
was
evident.
Collectively,
our
findings
suggest
that
during
spatially
regulated
such
inflammatory
depend
on
virulence
strain.
Pathogens,
Год журнала:
2022,
Номер
11(6), С. 692 - 692
Опубликована: Июнь 16, 2022
Necrotic
enteritis
(NE)
in
poultry
is
an
economically
important
disease
caused
by
Clostridium
perfringens
type
A
bacteria.
global
trend
on
restricting
the
use
of
antibiotics
as
feed
supplements
food
animal
production
has
a
spike
NE
incidences
chickens,
particularly
broiler
populations.
Amongst
several
non-antibiotic
strategies
for
control
tried
so
far,
probiotics
seem
to
offer
promising
avenues.
The
current
review
focuses
studies
that
have
evaluated
probiotic
effects
C.
growth
and
development.
Several
species,
including
Lactobacillus,
Enterococcus,
Bacillus,
Bacteroides
bacteria
well
some
yeast
species
been
tested
chickens
against
These
findings
shown
improve
bird
performance,
reduce
colonization
NE-associated
pathology.
underlying
mechanisms
suggest
can
help
maintain
healthy
gut
microbial
balance
modifying
its
composition,
mucosal
integrity
upregulating
expression
tight-junction
proteins,
modulate
immune
responses
downregulating
inflammatory
cytokines.
Collectively,
these
indicate
platform
more
investigations
are
needed
study
whether
experimental
effectively
prevent
commercial
operational
settings.
Journal of Animal Science and Biotechnology/Journal of animal science and biotechnology,
Год журнала:
2023,
Номер
14(1)
Опубликована: Апрель 10, 2023
There
is
a
growing
search
for
natural
feed
additives
to
alleviate
the
deleterious
effects
of
coccidia
infection
in
poultry
production.
This
study
aimed
investigate
effect
enzymatically
treated
yeast
(ETY)
on
growth
performance,
nutrient
digestibility,
intestinal
morphology,
antioxidative
status,
and
cecal
mucosa
cytokines
coccidia-challenged
broiler
chickens.From
d
1
14
post
hatching,
480
chickens
were
allocated
3
corn-soybean
meal-based
experimental
diets
with
increasing
concentrations
ETY
(0,
1,
or
2
g/kg).
The
experiment
was
designed
as
randomized
complete
block
design
body
weight
(BW)
used
blocking
factor.
On
birds
re-randomized
within
each
diets.
Each
diet
groups
split
into
challenge
no-challenge
group.
resulted
×
factorial
arrangement
treatments.
administered
15
by
an
oral
gavage.Dietary
improved
(P
<
0.05)
G:F
21
regardless
state
linearly
increased
0.01)
apparent
ileal
digestibility
dry
matter
(DM),
nitrogen,
gross
energy
(GE).
decreased
BW
gain
intake
reduced
total
tract
retention
DM,
GE,
nitrogen.
mRNA
gene
expression
TNFα,
IL-1β,
IL-10,
IL-6
mucosa.
tendency
=
0.08)
reduce
IL-1β
expression.
Additionally,
supplementation
OCLN.
Serum
catalase
dietary
21.
Dietary
villus
height
crypt
depth
ratio,
goblet
cell
density
chickens.
excreta
oocyst
counts
21.Dietary
enhanced
utilization
augmented
development
However,
did
not
completely
attenuate
adverse
Journal of Animal Science,
Год журнала:
2024,
Номер
102
Опубликована: Янв. 1, 2024
Abstract
Nisin
(Ni)
is
a
polypeptide
bacteriocin
produced
by
lactic
streptococci
(probiotics)
that
can
inhibit
the
majority
of
gram-positive
bacteria,
and
improve
growth
performance
broilers,
exert
antioxidative
anti-inflammatory
properties.
The
present
study
investigated
potential
preventive
effect
on
necrotic
enteritis
induced
Clostridium
perfringens
(Cp)
challenge.
A
total
288
Arbor
Acres
broiler
chickens
1-d-olds
were
allocated
using
2
×
factorial
arrangement
into
four
groups
with
six
replicates
(12
per
replicate),
including:
(1)
control
group
(Con,
basal
diet),
(2)
Cp
challenge
(Cp,
diet
+
1.0
108
CFU/mL
Cp),
(3)
Ni
(Ni,
100
mg/kg
Ni),
(4)
(Ni
Cp,
Cp).
results
showed
decreased
average
daily
gain
(ADG)
days
15
to
21
(P<0.05)
increased
interleukin-6
(IL-6)
content
in
serum
(P
<
0.05),
as
well
significant
reduction
villus
height
(VH)
ratio
VH
crypt
depth
(VCR)
increase
(CD)
jejunum
(P<0.05).
Furthermore,
mRNA
expressions
Occludin
Claudin-1
downregulated
(P<0.05),
while
Caspase3,
Caspase9,
Bax,
Bax/Bcl-2
upregulated
jejunum.
However,
inclusion
dietary
supplementation
significantly
improved
body
weight
(BW)
28,
ADG
CD
jejunum,
reduced
tumor
necrosis
factor-α
(TNF-α)
addition
levels
expression
Caspase9
Moreover,
altered
cecal
microbiota
composition,
which
manifested
relative
abundance
phylum
Fusobacteriota
Shannon
index
trend
Proteobacteria
(0.05<P<0.10),
Cyanobacteria
In
conclusion,
demonstrated
effectively
mitigated
negative
impact
challenge-induced
damage
intestine
broilers
via
reducing
inflammatory
responses
intestinal
apoptosis
modulating
microbial
composition.
Poultry Science,
Год журнала:
2024,
Номер
103(5), С. 103599 - 103599
Опубликована: Фев. 28, 2024
Chickens
have
undergone
genetic
improvements
in
the
past
few
decades
to
maximize
growth
efficiency.
However,
necrotic
enteritis
(NE),
an
enteric
disease
primarily
caused
by
C.
perfringens,
remains
a
significant
problem
poultry
production.
A
study
investigated
differences
intestinal
health
between
non-selected
meat-type
Athens
Canadian
Random
Bred
(ACRB)
and
modern
Cobb
500
(Cobb)
broilers
when
challenged
with
experimental
NE.
The
utilized
2
×
3
factorial
arrangement,
consisting
of
two
main
effects
chicken
strain
NE
challenge
model
(non-challenged
control,
NC;
2,500/12,500
Eimeria
maxima
oocysts
+
1
109
NE2.5/NE12.5).
total
432
fourteen-d-old
male
ACRB
were
used
until
22
days
(8
post
inoculation
E.
on
d
14,
dpi),
chickens
euthanized
6
8
dpi
for
analysis.
All
data
statistically
analyzed
using
2-way
ANOVA,
Student's
t-test
or
Tukey's
HSD
test
was
applied
P
<
0.05.
NE12.5
group
showed
decreases
performance
relative
from
14
20,
regardless
(P
0.01).
exhibited
body
weight
gain
compared
On
dpi,
both
groups
villus
height
crypt
depth
ratio,
jejunal
goblet
cell
count,
MUC2
LEAP2
expression
Additionally,
had
significantly
higher
lesion
score,
permeability,
fecal
oocyst
perfringens
IFNγ
CCL4
NC
0.05).
In
conclusion,
negatively
impacts
broilers,
parameters
strain.
Immuno,
Год журнала:
2022,
Номер
2(2), С. 387 - 407
Опубликована: Май 7, 2022
Clostridium
perfringens,
a
prevalent
Gram-positive
bacterium,
causes
necrotic
diseases
associated
with
abundant
life
loss
and
economic
burdens
of
billions
USD.
The
mechanism
C.
perfringens-induced
remains
largely
unknown,
in
part,
because
the
lack
effective
animal
models
presence
large
array
exotoxins
diverse
disease
manifestations
from
skin
deep
tissues
to
gastrointestinal
tract.
In
light
advancement
medical
veterinary
research,
body
knowledge
is
accumulating
on
factors
influencing
onset,
development,
outcomes.
Here,
we
present
an
overview
key
virulence
perfringens
exotoxins.
Subsequently,
focus
comprehensively
reviewing
such
as
myonecrosis,
acute
watery
diarrhea,
enteritis
necroticans,
preterm
infant
necrotizing
enterocolitis,
chicken
enteritis.
We
then
review
current
understanding
mechanisms
myonecrosis
relation
immune
system
intestinal
microbiome.
Based
these
discussions,
preventions
treatments
propose
potential
new
intervention
options.
purpose
this
provide
updated
comprehensive
role
host–microbe
interaction
develop
interventions
against
diseases.
Animals,
Год журнала:
2023,
Номер
13(11), С. 1816 - 1816
Опубликована: Май 30, 2023
Bone
serves
as
a
multifunctional
organ
in
avian
species,
giving
structural
integrity
to
the
body,
aiding
locomotion
and
flight,
regulating
mineral
homeostasis,
supplementing
calcium
for
eggshell
formation.
Furthermore,
immune
cells
originate
reside
bone
marrow,
sharing
milieu
with
cells,
indicating
potential
interaction
functions.
In
prevalence
of
gastrointestinal
diseases
can
alter
growth
response,
which
costs
great
fortune
poultry
industry.
Previous
studies
have
shown
that
coccidiosis
necrotic
enteritis
dramatically
reduce
quality
well.
However,
possible
mechanisms
on
how
is
influenced
by
these
disease
conditions
not
yet
been
completely
understood,
other
than
reduced
feed
intake.
On
hand,
several
mediators
such
chemokines
cytokines,
play
vital
role
differentiation
activation
osteoclasts
responsible
resorption
osteoblasts
case
Eimeria
spp./Clostridium
perfringens
coinfection,
are
upregulated.
One
mechanism
accelerated
loss
after
illnesses
might
be
immune-mediated
osteoclastogenesis
via
cytokines-RANKL-mediated
pathways.
This
review
article
thus
focuses
osteoimmunological
pathways
between
host
responses
biology
like
affecting
skeletal
health.
Poultry Science,
Год журнала:
2024,
Номер
103(7), С. 103815 - 103815
Опубликована: Апрель 27, 2024
The
objective
of
this
study
was
to
evaluate
the
effect
25%
arginine
supplementation
as
a
functional
amino
acid
in
partially
alleviating
detrimental
effects
necrotic
enteritis
(NE)
on
growth
performance,
serum
biochemistry,
gut
integrity,
and
relative
gene
expression
tight
junction
proteins
inflammatory
cytokines
broilers
during
NE.
Three
hundred
sixty
1-day-old
chicks
were
randomly
allocated
4
treatments
2
×
factorial
arrangement
-basal
diet
125%
diet,
with
or
without
NE
challenge.
induced
by
inoculating
1
104Eimeria
maxima
sporulated
oocysts
d
14
108
CFU/bird
C.
perfringens
19,
20,
21.
challenge
had
significant
BWG
(p
<
0.05),
FCR
AST
GLU
K+
0.05)
levels,
intestinal
permeability
jejunal
lesion
score
0.05).
A
interaction
observed
cecal
tonsil
CD8+:
CD4+
T-cell
ratio
21
28
spleen
35
Arginine
significantly
increased
uninfected
birds
but
decreased
infected
birds.
On
21,
iNOS
downregulated
ZO-1
jejunum.
In
conclusion,
did
not
alleviate
depression
performance
disease
severity
However,
enzymes,
preventing
injury
tissues
Hence,
might
be
supplemented
other
alternatives
downregulate
response
poultry.
Antioxidants,
Год журнала:
2023,
Номер
12(7), С. 1476 - 1476
Опубликована: Июль 24, 2023
Clostridium
perfringens
causes
necrotic
enteritis
(NE)
after
proliferation
in
the
intestine
of
poultry,
resulting
considerable
losses
to
poultry
industry.
This
study
aimed
investigate
impact
tannic
acid
on
antioxidant,
immunity,
and
gut
health
broilers
with
NE.
In
experiment,
630
one-day-old
Cobb500
male
chicks
were
randomly
divided
into
six
treatment
groups,
seven
replicate
cages
fifteen
birds
each
cage.
The
groups
as
follows:
control
group
(NC),
challenged
(PC),
NE
chickens
treated
250,
500,
750,
1000
mg/kg
(PTA1,
PTA2,
PTA3,
PTA4,
respectively).
To
induce
NE,
coccidia
vaccine
administered
day
19
days
22-28,
respectively.
Indexes
related
immune,
intestinal
measured
28
35.
During
infection
period,
we
observed
significant
increases
fecal
water
content,
D-LA,
TNF-α,
malondialdehyde
concentrations
(p
<
0.05).
Conversely,
decreases
noted
chyme
pH
T-AOC,
IL-4,
IL-10
addition
exhibited
a
linear
decrease
content
TNF-α
concentration
Furthermore,
supplementation
resulted
quadratic
curve
D-LA
Cecal
microbiological
analysis
revealed
that
Ruminococcaceae
Butyricimona
dominant
PTA3.
conclusion,
dietary
may
reduce
negative
effects
by
increasing
antioxidant
anti-inflammatory
capacity,
improving
barrier,
regulating
flora.
Animals,
Год журнала:
2023,
Номер
13(24), С. 3784 - 3784
Опубликована: Дек. 8, 2023
Microencapsulated
sodium
butyrate
(MS-SB)
is
an
effective
additive
which
can
reduce
the
release
of
(SB)
in
fore
gastrointestinal
tract.
In
this
study,
we
assess
protective
effects
and
mechanisms
MS-SB
Clostridium
perfringens
(C.
perfringens)-challenged
broilers.
Broiler
chickens
were
pre-treated
with
SB
or
for
56
days
then
challenged
C.
three
times.
Our
results
indicate
that
addition
before
infection
significantly
decreased
thymus
index
(p
<
0.05).
Serum
IgA,
IgY,
IgM
concentrations
increased
0.05),
while
pro-inflammatory
IL-1β,
IL-6,
TNF-α
0.05)
under
supplementation.
Compared
SB,
presented
a
stronger
performance,
higher
IgA
content,
as
well
lower
IL-1β
level
when
normal
perfringens-challenged.
While
challenge
villus
height
administration
height/crypt
depth
(V/C
ratio)
Varying
degrees
volatile
fatty
acids
(VFAs)
during
challenge,
where
evidenced
by
content
isovaleric
acid
valeric
acid.
Microbial
analysis
demonstrated
both
increase
variation
microbiota
community.
The
also
proportions
Bacteroides,
Faecalibacterium,
Clostridia,
Ruminococcaceae,
Alistipes,
Clostridia
group
while,
at
same
time,
abundance
Bacteroides
Alistipes.
summary,
dietary
supplementation
improves
immune
status
morphology
intestinal
villi,
increases
production
VFAs,
modulates
cecal
perfringens.
Moreover,
was
more
than
supplemental
amount.