Effects of Eimeria maxima infection doses on growth performance and gut health in dual-infection model of necrotic enteritis in broiler chickens
Frontiers in Physiology,
Journal Year:
2023,
Volume and Issue:
14
Published: Sept. 20, 2023
The
objective
of
this
study
was
to
investigate
the
effects
different
doses
Eimeria
maxima
(EM)
oocysts
on
growth
performance
and
intestinal
health
in
broiler
chickens
challenged
with
a
dual
infection
model
necrotic
enteritis
(NE)
using
EM
NetB+Clostridium
perfringens
(CP).
A
total
432
fourteen-d-old
male
Cobb
500
were
divided
into
6
groups
replicates
each.
six
as
follows:
Control,
non-challenged;
T0+,
CP
at
1
×
109
colony
forming
unit;
T5K+,
T0+
+
5,000
oocysts;
T10K+,
10,000
T20K+;
20,000
T40K+;
40,000
oocysts.
challenge
orally
inoculated
strain
41A
d
14,
followed
by
NetB+CP
Del-1
4
days
post
inoculation
(dpi).
Increasing
decreased
21
body
weight,
weight
gain,
feed
intake
(linear
quadratic,
p
<
0.001),
efficiency
(linear,
0.001)
from
0
7
dpi.
increased
jejunal
NE
lesion
score
permeability
5,
6,
dpi
0.05).
On
dpi,
increasing
counts
0.05)
fecal
oocyst
output
0.001).
Furthermore,
villus
height
crypt
depth
ratios
goblet
cell
downregulated
expression
MUC2,
B0AT,
B0,+AT,
PepT1,
GLUT2,
AvBD3
9,
LEAP2,
TLR4,
while
upregulating
CLDN1,
CATHL3,
IL-1β,
IFN-γ,
TNFSF15,
TNF-α,
IL-10,
Gam56
82
Additionally,
Pielou's
evenness
Shannon's
entropy
0.01).
In
conclusion,
significantly
aggravated
severity
exerted
negative
impact
5
Language: Английский
Innovative prevention and control of coccidiosis: targeting sporogony for new control agent development
Poultry Science,
Journal Year:
2024,
Volume and Issue:
103(12), P. 104246 - 104246
Published: Aug. 23, 2024
Coccidiosis
is
one
of
the
most
significant
diseases
affecting
poultry
industry,
with
recent
estimates
indicating
that
it
causes
annual
losses
exceeding
£10
billion
globally.
Increasing
concerns
over
drug
residues
and
resistance
have
elevated
importance
safe
effective
vaccines
as
primary
method
for
controlling
coccidiosis
other
animal
diseases.
However,
current
commercial
live
can
negatively
impact
feed
conversion
rates
young
broilers
induce
subclinical
symptoms
coccidiosis,
limiting
their
widespread
adoption.
Eimeria
species,
causative
agents
exhibit
unique
biological
characteristics.
Their
life
cycle
involves
2
or
more
generations
schizogony
1
generation
gametogony
within
host,
followed
by
sporogony
in
a
suitable
external
environment.
Sporogony
crucial
oocysts
to
become
infectious
propagate
host.
Focusing
on
process
presents
promising
approach
overcoming
technical
challenges
efficient
control
addressing
urgent
need
sustainable
healthy
farming
practices.
This
paper
systematically
reviews
existing
strategies
identifies
challenges,
emphasizes
research
progress
future
directions
developing
targeting
sporogony.
The
goal
provide
guidance
formulation
scientific
prevention
measures
coccidiosis.
Language: Английский
Evaluating the protective effects of the Toll-like receptor (TLR) 21 ligand, CpG ODN, against necrotic enteritis in broiler chickens
PLoS ONE,
Journal Year:
2025,
Volume and Issue:
20(3), P. e0319404 - e0319404
Published: March 13, 2025
Necrotic
enteritis
(NE),
caused
by
Clostridium
perfringens
(
C.
),
presents
a
challenge
to
the
global
broiler
industry.
Evidence
suggests
that
Toll-like
receptor
(TLR)
ligands
can
enhance
immune
responses
in
chickens
and
protect
them
against
infectious
diseases.
This
study
investigated
protective
effects
of
TLR21
ligand
class
B
CpG
oligonucleotides
(ODN)
NE
chickens.
On
day
21
age,
were
injected
with
50
or
100
μg
intramuscularly,
one
group
was
followed
booster
dose
on
22.
Subsequently,
birds
orally
challenged
twice
daily
for
three
days,
starting
22,
intestinal
samples
collected
gene
expression
analysis.
25,
all
euthanized,
lesions
scored,
tissue
from
intestine
analysis,
lymphocyte
subset
determination,
histomorphological
Cecal
contents
also
microbiome
The
results
demonstrated
pre-treatment,
either
at
single
two
doses
per
bird,
reduced
lesion
scores
compared
positive
control.
infection
increased
crypt
depth
both
jejunum
ileum
control
CpG-treated
group.
At
22
days
administration
bird
enhanced
TLR21,
interleukin
(IL)-2,
CXCL8,
IL-10,
interferon
(IFN)-γ
mRNA
transcripts
ileum.
Additionally,
25
pretreated
showed
cytokines
groups.
percentage
lymphocytes
not
affected
pre-treatment.
However,
pretreatment
resulted
higher
abundance
members
families
Lactobacillaceae
Bacteroidaceae
,
which
are
crucial
maintaining
gut
health.
In
conclusion,
our
findings
suggest
intramuscular
may
be
effective
health
during
infection.
Language: Английский
Valine and isoleucine deficiency in necrotic enteritis challenge impact growth performance, intestinal health, and muscle growth in broilers
Poultry Science,
Journal Year:
2025,
Volume and Issue:
unknown, P. 105143 - 105143
Published: April 1, 2025
Language: Английский
Natural intraepithelial lymphocyte populations rise during necrotic enteritis in chickens
Shuja Majeed,
No information about this author
Shaimaa K. Hamad,
No information about this author
B Shah
No information about this author
et al.
Frontiers in Immunology,
Journal Year:
2024,
Volume and Issue:
15
Published: Feb. 22, 2024
Intraepithelial
lymphocytes
(IEL)
reside
in
the
epithelium
at
interface
between
contents
of
intestinal
lumen
and
sterile
environment
lamina
propria.
Because
this
strategic
location,
IEL
play
a
crucial
role
various
immunological
processes,
ranging
from
pathogen
control
to
tissue
stability.
In
mice
humans,
exhibit
high
diversity,
categorized
into
induced
(conventional
CD4
CD8αβ
T
cells)
natural
(TCRαβCD8αα,
TCRγδ,
TCR
neg
IEL).
chickens,
however,
subpopulations
their
functions
enteric
diseases
remain
unclear.
Thus,
we
conducted
study
investigate
populations
during
necrotic
enteritis
(NE)
chickens.
At
14
days
age,
sixty-three
Specific-pathogen-free
(SPF)
birds
were
randomly
assigned
three
treatments:
Control
(sham
challenge),
Eimeria
maxima
challenge
(EM),
+
Clostridium
Perfringens
(
C.
)
co-challenge
(EM/CP).
The
EM
EM/CP
infected
with
day
additionally
orally
inoculated
perfringens
18
19
age.
Birds
weighed
18,
20,
26
age
assess
body
weight
gain
(BWG).
20
(1
day-post
infection;
dpi),
(7
7
per
treatment
euthanized,
jejunum
was
harvested
for
gross
lesion
scores,
isolation,
gene
expression.
exhibited
subclinical
NE
disease,
lower
BWG
shorter
colon
length.
Most
changes
observed
1
dpi.
group
showed
substantial
increases
total
number
subsets,
including
TCRαβ
-
CD8
,
CD8αα
TCRγδ
innate
CD8α
(iCD8α)
cells
by
least
two-fold.
However,
dpi,
only
maintained
increase
group.
had
significantly
higher
expression
proinflammatory
cytokines
(IL-1β
IFN-γ)
Osteopontin
(OPN)
These
findings
suggest
that
innate-like
might
critical
host
response
NE,
potentially
conferring
protection
against
infection.
Language: Английский
Temporal Changes in Jejunal and Ileal Microbiota of Broiler Chickens with Clinical Coccidiosis (Eimeria maxima)
Animals,
Journal Year:
2024,
Volume and Issue:
14(20), P. 2976 - 2976
Published: Oct. 15, 2024
Coccidiosis
in
broiler
chickens
continues
to
be
a
major
disease
of
the
gastrointestinal
tract,
causing
economic
losses
poultry
industry
worldwide.
The
goal
this
study
was
generate
symptomatic
Eimeria
maxima
(1000
oocysts)
infection
determine
its
effect
on
luminal
and
mucosal
microbiota
populations
(L
M)
jejunum
ileum
(J
IL).
Samples
were
taken
from
day
0
14
post-infection,
sequencing
16S
rRNA
performed
using
Illumina
technology.
Infected
birds
had
significantly
(p
<
0.0001)
lower
body
weight
gain
(BWG),
higher
feed
conversion
ratio
(FCR)
=
0.0015),
increased
crypt
depth,
decreased
villus
height
0.05).
significant
differences
alpha
beta
diversity
observed
primarily
at
(D7).
Analysis
taxonomy
indicated
that
J-L
M
dominated
by
Lactobacillus,
IL-M,
changeover
Candidatus
Arthromitus
Lactobacillus
as
taxon
observed,
which
occurred
quicky
infected
animals.
LEfSe
analysis
found
J-M
chickens,
more
abundant
(IF)
chickens.
These
findings
show
E.
affects
small
intestine
time-dependent
manner,
with
different
effects
populations.
Language: Английский
Phytogenics in Ginger, Origanum vulgare, and Syzygium aromaticum and Their Potential as a Feed Additive against Clostridium perfringens in Broiler Production
Gilmour Valdez,
No information about this author
Lie‐Fen Shyur,
No information about this author
Sheng‐Yang Wang
No information about this author
et al.
Animals,
Journal Year:
2023,
Volume and Issue:
13(23), P. 3643 - 3643
Published: Nov. 24, 2023
Necrotic
enteritis
is
a
devastating
disease
in
chickens
mainly
caused
by
Clostridium
perfringens—particularly,
Net-B
toxin-producing
strains.
In
order
to
combat
necrotic
broiler
production,
natural
growth
promoters,
as
well
anti-inflammatory
and
non-antibiotic
remedies,
were
developed
for
anti-microbial
resistance
due
its
status
global
pandemic.
Herein,
phytogenic
ginger,
wild
marjoram,
cloves
reviewed
potential
alternatives
antibiotics
their
functions.
These
phytogenics
contain
active
ingredients
that
efficiently
modulate
the
immune
response
improve
intestinal
morphology
overall
performance,
even
under
stress
infection
conditions.
Most
of
beneficial
effects
can
be
attributed
functions,
primarily
inhibition
NF-κB
MAPK
pathways.
Phytogenics
represent
substitutes
antibiotic
further
serving
remedies
treatment
birds
with
infections.
Language: Английский
Alpha toxin production potential and antibiotic resistance patterns of clostridium perfringens isolates from meat samples
Animal Bioscience,
Journal Year:
2024,
Volume and Issue:
37(11), P. 1970 - 1978
Published: June 25, 2024
This
research
aimed
to
analyze
the
prevalence,
molecular
characteristics,
toxinotyping,
alpha
toxin
production
potential,
and
antibiotic
resistance
pattern
of
Clostridium
perfringens
(C.
perfringens)
isolates
in
meat
samples
collected
from
various
sources.
Language: Английский
Effect of a blend of essential oils, organic acids, tannins, vitamin E and zinc on the intestinal health of broiler chickens challenged with Eimeria spp., Salmonella Minnesota, Escherichia coli and Clostridium perfringens
Pesquisa Veterinária Brasileira,
Journal Year:
2024,
Volume and Issue:
44
Published: Jan. 1, 2024
ABSTRACT:
This
study
aimed
to
evaluate
the
effects
of
(i)
diets
supplemented
with
a
blend
organic
acids,
cinnamon
essential
oil,
oregano
eugenol,
thymol,
curcumin,
tannins,
vitamin
E,
and
zinc
microencapsulated
in
vegetable
fat
(ii)
challenge
by
Eimeria
spp.,
Salmonella
Minnesota,
Escherichia
coli,
Clostridium
perfringens.
Also,
diet
×
interaction
on
animal
performance
(1-21
22-42
days
age),
weights
organs
primal
cuts,
ileal
morphometry
42-day-old
broiler
chickens.
The
experiment
was
conducted
according
2
factorial
design
(supplemented
unsupplemented
challenged
unchallenged
broilers).
Each
treatment
consisted
eight
replications
birds
per
replicate.
At
14
age,
chickens
group
(n=128)
received
orally
1mL
suspension
containing
sporulated
oocysts
spp.
(E.
acervulina,
E.
praecox,
maxima,
mitis,
tenella,
necatrix),
other
experimental
saline
solution
orally.
18
C.
perfringens,
S.
From
1
21
microbial
reduced
body
weight,
feed
intake,
weight
gain
increased
conversion.
In
same
period,
had
lower
22
42
conversion,
breast
thigh
+
drumstick
heart
weight.
Supplemented
higher
Unchallenged
fed
showed
bursa
proventriculus
villus
height,
crypt
depth.
liver
Microbial
challenges
coli
impaired
productive
starter
phase.
They
decreased
yield
cuts
broilers,
partially
explaining
recurring
economic
problems
observed
poultry
sector.
Overall,
studied
able
improve
conversion
phase,
enhance
digestive
absorption
processes,
increase
cuts.
However,
no
were
birds.
findings
suggest
that
are
influenced
conditions,
composition,
inclusion
level
may
or
not
result
beneficial
outcomes.
Language: Английский