Analysis of the economic performance of salmon farming in submerged and surface cages in the Black Sea
Aquaculture International,
Journal Year:
2023,
Volume and Issue:
32(1), P. 101 - 118
Published: May 30, 2023
Language: Английский
Comparison of the effects of hesperidin over 30 and 60-day intervals on rainbow trout: a potential biostimulant to promote growth, immunological and antioxidant responses, and disease resistance
Annals of Animal Science,
Journal Year:
2024,
Volume and Issue:
24(4), P. 1263 - 1275
Published: May 10, 2024
Abstract
The
current
research
evaluated
the
effects
of
dietary
hesperidin
(HSP)
on
growth
parameters,
digestive
enzyme
activities,
innate
immune
markers,
and
antioxidant
responses
in
rainbow
trout,
Oncorhynchus
mykiss
after
30-
60-day
feeding
trial.
Then,
specimens
were
subjected
to
Yersinia
ruckeri
infection
for
14
days.
For
this,
six
hundred
trout
juveniles
(initial
weight;
25.49±0.40
g)
fed
with
different
levels
HSP
including
0
(HSP0;
control),
50
(HSP50),
100
(HSP100),
150
(HSP150),
200
(HSP200)
mg/kg
feed.
After
60
days,
HSP100
supplementation
significantly
improved
feed
efficiency
indices.
optimal
dose
based
regression
test
WG
FCR
detected
122
131
mg/kg,
respectively.
At
end
30th
day,
HSP150
markedly
boosted
serum
lysozyme
(LYZ),
myeloperoxidase
(MPO),
complement
component
C3,
immunoglobulin
(Ig)
levels,
but
decreased
malondialdehyde
(MDA)
content.
In
same
period,
administration
at
concentrations
increased
C4
(HSP150
HSP200),
superoxide
dismutase
(SOD),
skin
mucus
alkaline
phosphatase
(ALP)
(HSP100–HSP200),
LYZ
catalase
(CAT)
(HSP100
150),
Ig
level
(HSP50–HSP200).
all
lipase,
glutathione
peroxidase
(GPX),
ALP,
LYZ,
MDA,
aspartate
aminotransferase
(AST),
alanine
(ALT)
values.
induced
a
significant
discrepancy
activity
MPO,
respiratory
burst
(RB),
lactate
dehydrogenase
(LDH)
compared
control
group.
remarkable
increase
protease
ACH50
CAT
activities
HSP150),
SOD
value
(HSP50,
HSP150,
ALP
HSP200).
addition,
supplementation,
especially
disease
resistance
against
Y.
infection.
data
demonstrated
that
oral
100–150
has
high
potential
promote
performance,
resistance,
faster
induction
responses.
Language: Английский
Comparative transcriptomic analysis reveals osmoregulatory mechanisms of juvenile Lateolabrax maculatus responses to long term hypotonic and hypertonic acclimation
Changlin Li,
No information about this author
Longbin Wang,
No information about this author
Miaojun Pan
No information about this author
et al.
Aquaculture,
Journal Year:
2024,
Volume and Issue:
596, P. 741864 - 741864
Published: Nov. 10, 2024
Language: Английский
Assessment of Initial Investment Strategies for Different Farm-Scale Scenarios with Economic Cost Analyses in Offshore Salmon Farming
Annals of Animal Science,
Journal Year:
2023,
Volume and Issue:
24(1), P. 223 - 234
Published: July 12, 2023
Abstract
The
simulation
of
investment
strategies
with
different
farm-scale
scenarios
has
been
evaluated
for
best
management
plan
in
cage
farming
business
the
establishment
a
salmon
production
either
full
capacity
or
progressive
investment.
Economical
revenues
were
analyzed
risk
assessment
based
on
operating
and
fixed
costs
each
four
scenarios.
In
theoretical
model
projected
stimulation
plans,
structural
elements
construction
an
offshore
Turkish
farm
Black
Sea
designed
annual
4,000
tons
re-scaled
by
25,
50
75%
reduction,
corresponding
to
3,000,
2,000
1,000
per
year,
respectively.
Economic
variables
operational
comparatively
profit
conditions
sales
harvested
fish.
break-even
points
all
remarkably
lower
(on
average
302,574.7
kg/year)
than
harvest
yields
from
farms
3,702,857.1
kg/year).
Based
margin
safety
(MOS
over
85%),
gained
net
profits
low
risks
first
whether
received
investment,
initiated
reduced
expenditures
gradual
expansion
plan.
Findings
this
study
exhibit
useful
indications
understanding
stepwise
plans
conditions.
Language: Английский