Frontiers in Physiology,
Journal Year:
2024,
Volume and Issue:
15
Published: Jan. 24, 2024
An
8-week
feeding
experiment
was
conducted
on
the
juvenile
turbot
(Scophthalmus
maximus
)
to
evaluate
influence
of
yeast
extract
(YE)
supplementation
in
diet
growth
performance,
feed
utilization,
body
composition,
nutrient
digestibility,
intestinal
histology,
and
antioxidant
capacity.
Four
experimental
diets
were
formulated
with
graded
levels
0
(YE0),
1%
(YE1),
3%
(YE3),
5%
(YE5)
fed
turbots
(initial
weight:
4.2
±
0.1
g)
three
replicates
per
200
fish
each
replicate,
respectively.
The
results
showed
that
YE1
YE3
displayed
a
significantly
higher
specific
rate
protein
efficiency
than
those
YE0
YE5,
while
conversion
ratios
groups
lower
YE5.
Fish
YE5
crude
contents
YE1.
highest
apparent
digestibility
coefficients
for
dry
matter
protein,
digestive
enzyme
activities
(trypsin,
lipase,
amylase),
height
fold
observed
group.
treatment
superoxide
dismutase
(SOD)
activity
group,
malondialdehyde
(MDA)
content
No
significant
difference
serum
physiological
biochemical
parameters
among
all
treatments.
Overall,
appropriate
dietary
could
improve
capacity
turbot,
recommended
level
is
2.47%.
Aquaculture Nutrition,
Journal Year:
2025,
Volume and Issue:
2025(1)
Published: Jan. 1, 2025
A
114‐day
feeding
trial
was
used
to
investigate
the
influence
of
vitamin
(VA)
on
growth
performance,
nonspecific
immune
responses
and
shell
microbiota
in
juvenile
sea
urchin
(
Strongylocentrotus
intermedius
).
Graded
levels
VA
(0,
4000,
8000,
16,000,
32,000
64,000
IU/kg)
were
added
make
six
experimental
feeds.
Each
feed
allocated
three
parallel
tanks
urchins
(initial
weight
0.87
±
0.05
g
initial
test
diameter
1.83
0.57
mm).
The
data
revealed
that
gain
rate
(WGR)
gonadosomatic
index
(GSI)
rose
markedly
as
addition
level
increased
from
0
4000
IU/kg
then
reached
a
plateau
with
further
increase
dietary
levels.
As
increased,
response
S.
first
decreased,
those
fed
diets
relatively
higher
(32,000
exhibiting
significantly
greater
phagocytic
activity
(PA)
acid
phosphatase
(ACP)
activities,
well
upregulated
expression
several
immune‐related
genes
such
tumour
necrosis
factor
α
TNF-α
),
antimicrobial
peptides
AMPs
toll‐like
receptors
TLRs
)
lysozyme
LYZ
abundance
Firmicutes,
Bacteroidota,
Bacteroides
Faecalibacterium
but
Proteobacteria
Leucothrix
decreased
increased.
percentage
severe
red
spotted
disease
64.44%
to13.33%
subsequently
42.22%
level.
On
contrary,
mild
from13.33%
55.55%
31.11%
These
results
demonstrated
low
(4000
can
help
achieve
ideal
performance.
However,
enhanced
immunity
resistance
,
which
could
be
accomplished
by
promoting
gene
optimizing
composition.
Reviews in Aquaculture,
Journal Year:
2025,
Volume and Issue:
17(2)
Published: March 1, 2025
ABSTRACT
Aquaculture,
encompassing
the
cultivation
of
diverse
saltwater
and
freshwater
fish
shellfish
species,
is
rapidly
expanding,
driven
by
pressing
need
for
sustainable
food
production.
However,
intensified
farming
practices
often
lead
to
significant
economic
losses
due
mortality
from
infectious
diseases
stress‐related
conditions.
Consequently,
enhancing
immune
responses
farmed
species
has
become
vital
management.
This
encouraged
a
growing
interest
in
natural
eco‐friendly
bioactive
compounds
as
alternatives
synthetic
chemicals
disease
prevention.
Among
these,
polysaccharides
various
sources
have
emerged
promising
candidates,
administered
through
dietary
inclusion,
intraperitoneal
injection,
or
immersion.
As
prebiotics,
these
enhance
immunity
overall
health
aquaculture
modulating
both
innate
adaptive
responses,
including
lysozyme
activity,
phagocytosis,
cytokine
review
critically
examines
latest
advances
polysaccharide‐induced
immunoregulation,
highlighting
their
influence
on
key
signaling
pathways,
which
play
pivotal
roles
modulation.
Additionally,
potential
mitigate
stress
caused
environmental
factors
discussed,
demonstrating
ability
growth
performance
resistance.
The
collective
findings
underscore
value
antibiotics,
aligning
with
increasing
consumer
demand
antibiotic‐free
products
supporting
advancement
global
sustainability.
Reviews in Aquaculture,
Journal Year:
2025,
Volume and Issue:
17(2)
Published: March 1, 2025
ABSTRACT
Some
potential
natural
plant
polysaccharides
(PNPP)
exhibit
a
diverse
array
of
beneficial
biological
activities
and
are
increasingly
utilized
as
feed
additives
in
environmentally
sustainable
aquaculture.
This
review
summarizes
the
extraction
purification
methods,
well
processes
involved
obtaining
polysaccharides.
Subsequently,
we
provide
an
in‐depth
discussion
on
relationship
between
structural
characteristics
PNPP
their
associated
activities.
Following
this,
highlight
advantageous
effects
Astragalus
polysaccharides,
Lycium
barbarum
other
within
aquaculture
settings.
We
also
briefly
elucidate
pathways
mechanisms
underlying
these
based
properties.
Finally,
outline
limitations
currently
faced
applying
to
aquatic
farming
while
proposing
future
directions
for
development
this
field.
aims
enhance
understanding
offers
theoretical
foundation
forthcoming
research
applications
Annals of Animal Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 19, 2024
Abstract
Vibriosis
is
a
commonly
known
bacterial
disease
that
harms
range
of
finfish
species,
causing
significant
mortality
and
high
economic
loss.
Chemotherapeutics,
antibiotics,
synthetic
chemicals
are
broadly
evaluated
as
effective
treatment
approaches;
however,
global
concerns
have
arisen
with
the
aim
decreasing
or
limiting
use
these
compounds
for
prevention
and/or
control
diseases
in
aquaculture
systems.
Consequently,
extensive
research
studies
been
accomplished
to
assess
natural
products
such
plant
parts
(s),
extracts,
essential
oils
(EOSs),
phytochemicals,
aromatic
potential
substitutes
antibiotics.
These
additives
rich
phytochemicals
(carotenoids,
alkaloids,
saponins,
terpenoids,
flavonoids,
phenolic
acids),
vitamins,
minerals,
others,
which
make
them
excellent
feed
supplements.
This
paper
focuses
chiefly
on
reviewing
medicinal
plants
(herbal
extracts
EOS)
possess
anti-Vibrio
(in
vitro
efficacy)
evaluating
their
ability
increase
immunity
resistance
fish
against
experimental
challenges
Vibrio
species
vivo
experiments).
Furthermore,
role
herbal
adjuvants
enhance
efficacy
vaccines
vibriosis
was
also
summarized.
In
brief,
this
review
illustrates
an
ample
number
herbs
effects
vibriosis.
Identifying
safe
alternatives
ensure
antibiotic-free
disease-free
environments
could
be
initial
step
toward
enhancing
sustainability
farming
activities.
Aquaculture Reports,
Journal Year:
2023,
Volume and Issue:
33, P. 101771 - 101771
Published: Oct. 17, 2023
Antibiotics
use
in
aquaculture
cause
multiple
adverse
effects
on
aquatic
animal
health.
Accordingly,
studies
alternative
approaches
to
antibiotics
are
urgently
required.
This
study
investigated
the
of
dietary
postbiotics
as
an
florfenicol
antibiotic
growth
performance,
survival
rate,
antioxidant
capacity,
non-specific
immunity,
and
gut
health
juvenile
oriental
river
prawn
(Macrobrachium
nipponense).
Seven
isonitrogenous
isocaloric
experimental
diets
were
formulated
containing
0%
(control),
0.25%,
0.5%,
1%,
2%
4%
postbiotics.
These
fed
three
replicates
70
prawns
(initial
weight
0.110
±
0.010
g)
for
eight
weeks.
In
addition,
a
diet
0.2%
(FFC0.2)
was
included
treatment,
which
two
Results
showed
that
feeding
improved
gain
rate.
The
or
increased
capacity
hepatopancreas.
Moreover,
significantly
immunity.
optimum
amount
required
maximum
immunity
0.76%,
0.86%
2.85%
based
acid
phosphatase,
alkaline
phosphatase
phenoloxidase
activities,
respectively.
upregulated
mRNA
expression
related
genes,
downregulated
FFC0.2
diet.
Furthemore,
1%
had
longer
microvilli
with
closely
packed
intestinal
epithelial
cell
basement
membrane.
summary,
supplementing
0.76
2.66%
M.
nipponense
improves
compared
antibiotic.
