International Journal of Marine Engineering Innovation and Research,
Год журнала:
2024,
Номер
9(4)
Опубликована: Дек. 31, 2024
Glass
strain
carp
(
Cyprinus
carpio
)
is
highly
demanded
by
farmers
due
to
its
delicious,
dense
meat
and
fewer
spines.
To
meet
the
increasing
demand
for
carp,
it
necessary
improve
efficiency
of
aquaculture.
The
season
known
stimulate
one
hormone
production.
purpose
this
study
was
determine
effect
(rainy
dry
seasons)
on
reproductive
hormones
(follicle
stimulating
(FSH),
luteinizing
(LH),
testosterone
estrogen,
interstitial
cell-stimulating
hormone))
in
C.
glass
strain.
Idi
research
conducted
using
descriptive
method
rearing
fish
different
seasons
season).
results
showed
that
increased
during
rainy
season.
During
season,
changes
environment
water
flow
patterns
are
detected
fish's
sensory
system.
highest
a
row
were:
ICSH
(12.82
pg/mL),
FSH
(male:
3.73
ng/mL;
female:
12.10
ng/mL),
LH
(12.48
MIU/ml),
(9.27
ng/mL)
estrogen
(21.84
ng/mL).
Further
needed
observe
growth
abnormality
larvae
produced
.
Philosophical Transactions of the Royal Society B Biological Sciences,
Год журнала:
2024,
Номер
379(1898)
Опубликована: Фев. 5, 2024
Reproduction
in
fishes
is
sensitive
to
temperature.
Elevated
temperatures
and
anomalous
‘heat
waves’
associated
with
climate
change
have
the
potential
impact
fish
reproductive
performance
and,
some
cases,
even
induce
sex
reversals.
Here
we
examine
how
thermal
sensitivity
hormone
pathways
regulating
reproduction
provides
a
framework
for
understanding
impacts
of
warmer
conditions
on
reproduction.
Such
effects
will
differ
depending
evolved
variation
temperature
endocrine
processes
determination/differentiation,
gametogenesis
spawning,
as
well
developmental
timing
those
varies
ecology.
For
populations
unable
shift
geographical
range,
persistence
under
future
climates
may
require
changes
responsiveness
processes.
How
among
species,
generate
maxima
reproduction,
rapidly
tolerances
can
via
adaptation
or
transgenerational
plasticity
shape
which
are
most
at
risk
impaired
rising
temperatures.
This
article
part
theme
issue
‘Endocrine
responses
environmental
variation:
conceptual
approaches
recent
developments’.
Aquaculture Fish and Fisheries,
Год журнала:
2025,
Номер
5(2)
Опубликована: Март 2, 2025
ABSTRACT
Global
warming
is
upsetting
for
aquatic
species,
and
probiotic
treatment
may
help
to
diminish
its
impacts.
In
order
counter
the
negative
consequences
of
elevated
temperature
on
growth
well‐being,
rearing
water
rohu
(
Labeo
rohita
)
was
supplemented
with
multispecies
probiotics
(1.0
mL/L).
For
6
weeks,
fingerlings
weighing
10.08
±
0.13
g
were
raised
in
triplicate
at
normal
(30°C)
higher
temperatures
(33°C
36°C)
or
without
probiotics.
Fish
treated
showed
substantial
decreases
weight
gain
(WG)
specific
rate
(SGR)
36°C
contrast
(30°C).
However,
fish
reared
enhanced
WG
SGR
highest
(36°C)
compared
maintained
group
under
high‐temperature
conditions,
haemoglobin
levels
increased
while
glucose
decreased.
The
number
irregularities
cells
nuclei
erythrocytes
dramatically
reduced
probiotic‐treated
36°C.
relative
mRNA
level
three
growth‐relevant
genes
(growth
hormone,
gh
,
pituitary;
insulin‐like
factor
1
2,
igf‐1
igf‐2
liver)
decreased
increasing
but
rose
after
addition.
revealed
a
notable
upregulation
regarding
expression
stress‐associated
heat
shock
protein
70
90
hsp70
hsp90
),
whereas
their
expressions
lowered
following
administration.
Considering
as
whole,
addition
improved
blood
biochemistry
cellular
structure
GH
IGF
which
consequently
relieved
retardation
stress
rohu.
General and Comparative Endocrinology,
Год журнала:
2025,
Номер
unknown, С. 114707 - 114707
Опубликована: Март 1, 2025
Female
fish
experiencing
atypically
high
or
prolonged
elevations
in
temperature
during
oogenesis
can
suffer
impaired
oocyte
development
with
fewer
smaller
eggs,
eggs
reduced
yolk
content
thinner
envelopes,
and
lower
egg
viability.
These
changes
quality
quantity
are
part
caused
by
diminished
liver
synthesis
of
(vitellogenin,
Vtg)
envelope
(choriogenin)
proteins
at
anomalously
temperatures.
Those
declines
Vtg
choriogenin
production
commonly
paralleled
blood
concentrations
17β-estradiol
(E2).
However,
it
is
unclear
whether
vitellogenin
elevated
temperatures
result
solely
from
circulating
E2
if
other
aspects
signaling
also
altered
to
diminish
proteins.
In
this
study,
adult
female
Amargosa
River
pupfish
(Cyprinodon
nevadensis
amargosae),
a
species
asynchronous
follicular
development,
were
maintained
20
°C,
28
36
°C
then
administered
vehicle
solution.
Ovarian
gonadosomatic
index
(GSI)
values
plasma
females
compared
those
cooler
Females
had
protein,
abundances
for
mRNAs
encoding
genes
(vtgAa,
vtgAb,
vtgc),
(cgh,
cghm,
cgl),
estrogen
receptor
α
(esr1).
Supplemental
increased
all
temperatures,
but
only
upregulated
despite
upregulation
hepatic
esr1
transcripts
exhibited
higher
mRNA
sex
hormone-binding
globulin
(shbg)
cytochrome
P450
family
1
subfamily
A
member
(cyp1a1),
an
estrogen-metabolizing
monooxygenase
enzyme
that
converts
2-hydroxyestradiol.
Together,
these
findings
indicate
stimulation
expression
via
effects
on
several
including
as
well
shbg
cyp1a1
expression,
which
may
free:bound
the
rate
inactivation.
results
demonstrate
replacement
help
compensate
temperature-induced
gene
pupfish.
Aquaculture and Fisheries,
Год журнала:
2023,
Номер
9(3), С. 437 - 446
Опубликована: Окт. 20, 2023
This
review
highlights
the
recent
developments
regarding
neuroendocrine
mechanisms
controlling
teleost
reproduction.
In
teleosts,
pituitary
gland
receives
major
neuronal
innervations
from
Gnrh
neurons
as
well
minor
small
population
of
that
will
secrete
neurotransmitters
and/or
neuropeptides.
The
diversity
Kiss/Kissr
system
in
various
species
and
their
actions
context
HPG
axis
reproduction
has
been
extensively
covered.
model
systems,
zebrafish
medaka,
mutant
lines
for
key
components
have
generated
through
targeted
mutagenesis
but
surprisingly
most
mutants
developed
normally
without
defects
reproduction;
these
phenotypes
are
described.
last
decade,
complex
role
diverse
neuropeptides
is
being
revealed.
A
brief
overview
about
reproductive
functions
presented.
Finally,
effects
environmental
factors
namely
photoperiodism
temperature
on
summarised.
