Animals,
Год журнала:
2024,
Номер
14(16), С. 2390 - 2390
Опубликована: Авг. 18, 2024
Heat
stress
(HS)
is
one
of
the
key
factors
affecting
an
animal's
immune
system
and
productivity,
as
a
result
physiological
reaction
combined
with
environmental
factors.
This
study
examined
short-term
effects
heat
on
cow
behavior,
recorded
by
innovative
technologies,
its
impact
blood
gas
parameters,
using
56
1070
cows
clinically
evaluated
during
second
subsequent
lactations
within
first
30
days
postpartum.
Throughout
experiment
(from
4
June
2024
until
1
July
2024),
behavior
parameters
(rumination
time
min/d.
(RT),
body
temperature
(°C),
reticulorumen
pH,
water
consumption
(L/day),
activity
(h/day))
were
monitored
specialized
SmaXtec
boluses
employing
analyzer
(Siemens
Healthineers,
1200
Courtneypark
Dr
E
Mississauga,
L5T
1P2,
Canada).
During
period,
temperature-humidity
index
(THI),
based
ambient
humidity,
was
used
to
calculate
THI
categorize
data
into
four
classes
follows:
1-THI
60-63
(4
2024-12
2024);
2-THI
65-69
(13
2024-18
3-THI
73-75
(19
2024-25
4-THI
73-78
(26
2024-1
2024).
The
results
showed
that
significantly
reduced
rumination
up
70%
in
highest
class
(73
78)
increased
2%.
It
also
caused
12.6%
decrease
partial
carbon
dioxide
pressure
(pCO2)
32%
increase
oxygen
(pO2),
decreasing
plasma
sodium
1.36%
potassium
6%,
while
increasing
chloride
3%.
findings
underscore
critical
need
for
continuous
monitoring,
early
detection,
proactive
management
mitigate
adverse
impacts
dairy
health
productivity.
Recommendations
include
use
advanced
monitoring
technologies
specific
parameter
tracking
detect
signs
implement
more
timely
interventions.
The Open Agriculture Journal,
Год журнала:
2024,
Номер
18(1)
Опубликована: Сен. 11, 2024
Introduction
This
study
aimed
to
develop
an
optimal
method
for
the
production
of
fish
hydrolysates
and
test
their
effectiveness
as
plant
biostimulants
under
low-temperature
growing
conditions.
Methods
To
obtain
hydrolysates,
waste
a
rainbow
trout
was
used.
Hydrolysates
were
prepared
by
enzymatic
hydrolysis
using
entrails
source
enzymes.
Differences
in
methods
obtaining
hydrolysates:
samples
І,
ІІ,
ІІІ,
IV
placed
into
water
bath
at
+37°C,
sample
V
left
room
temperature.
Further
nitric,
phosphoric,
acetic
acids
added
I,
II,
III,
respectively,
while
distilled
V.
The
on
germination
growth
corn
beans
conditions
(+15/8°C)
determined.
Results
Hydrolysate
I
showed
positive
effect
corn.
stimulated
growth;
however,
it
caused
abnormal
development
some
seedlings.
same
deformations
observed
with
hydrolysate
II.
III
inhibited
mold
but
also
crops.
greatest
both
crops
found
use
IV.
concentration
1%
-
10%.
Conclusion
A
result
obtained
from
stimulate
low
temperatures.
Therefore,
will
allow
less
yield
loss
case
unforeseeable
temperature
drops
after
seed
sowing.
AgriEngineering,
Год журнала:
2024,
Номер
6(4), С. 3891 - 3911
Опубликована: Окт. 24, 2024
The
implementation
of
poultry
houses
with
enhanced
control
over
environmental
variables
represents
a
solution
to
the
growing
demands
for
production
and
animal
welfare.
This
study
assessed
internal
environment
dark-house
broilers
on
weekly
basis
throughout
cycle.
Data
were
collected
six
weeks,
from
March
April
2016
involving
40,000
Cobb500TM
broilers.
A
Hobo®
datalogger
continuously
monitored
temperature
(°C),
relative
humidity
(%),
dew
point
black
globe
(°C)
at
15
min
intervals.
indices
analyzed
included
index
(THI),
(BGHI),
enthalpy
(H).
In
first
week,
both
THI
BGHI
indicated
favorable
conditions
birds,
ranging
72.4
80
77
81.6.
Between
second
fifth
varied
between
thermal
comfort
discomfort,
56.6
72.
sixth
all
reflecting
increased
metabolism
population
density.
system
demonstrated
feed
efficiency
51%,
an
accumulated
mortality
rate
1.97%,
total
99,873
kg
meat.
highlights
importance
monitoring
adjusting
optimize
enhance
bird
Animals,
Год журнала:
2024,
Номер
14(17), С. 2573 - 2573
Опубликована: Сен. 4, 2024
Dairy
ruminants
provide
a
major
part
of
the
livestock
and
agriculture
sectors.
Due
to
increase
in
world
population
subsequent
dairy
product
demands,
sector
has
been
intensified.
farming
intensification
animal
nutritional
demands
average
global
temperature
as
well
have
subjected
animals
various
stress
conditions
that
impact
their
health
welfare.
Various
management
practices
strategies
proposed
studied
alleviate
these
impacts,
especially
under
heat
stress,
during
critical
periods,
like
transition
period.
Some
interventions
cope
with
factors
ensure
optimal
production
are
inclusion
functional
fatty
acids
amino
feed
additives
(minerals,
prebiotics,
probiotics,
essential
oils
herbs,
phytobiotics,
enzymes,
etc.)
proven
regulate
animals’
metabolism
improve
antioxidant
status
immune
function.
Thus,
could
be
key
ensuring
optimum
growth,
milk
production,
reproduction
efficiency.
This
review
summarizes
highlights
approaches
support
remarkable
metabolic
adaptations
facing
period
reduce
effects
evaluate
beneficial
on
physiology,
performance,
health,
Animals,
Год журнала:
2024,
Номер
14(16), С. 2390 - 2390
Опубликована: Авг. 18, 2024
Heat
stress
(HS)
is
one
of
the
key
factors
affecting
an
animal's
immune
system
and
productivity,
as
a
result
physiological
reaction
combined
with
environmental
factors.
This
study
examined
short-term
effects
heat
on
cow
behavior,
recorded
by
innovative
technologies,
its
impact
blood
gas
parameters,
using
56
1070
cows
clinically
evaluated
during
second
subsequent
lactations
within
first
30
days
postpartum.
Throughout
experiment
(from
4
June
2024
until
1
July
2024),
behavior
parameters
(rumination
time
min/d.
(RT),
body
temperature
(°C),
reticulorumen
pH,
water
consumption
(L/day),
activity
(h/day))
were
monitored
specialized
SmaXtec
boluses
employing
analyzer
(Siemens
Healthineers,
1200
Courtneypark
Dr
E
Mississauga,
L5T
1P2,
Canada).
During
period,
temperature-humidity
index
(THI),
based
ambient
humidity,
was
used
to
calculate
THI
categorize
data
into
four
classes
follows:
1-THI
60-63
(4
2024-12
2024);
2-THI
65-69
(13
2024-18
3-THI
73-75
(19
2024-25
4-THI
73-78
(26
2024-1
2024).
The
results
showed
that
significantly
reduced
rumination
up
70%
in
highest
class
(73
78)
increased
2%.
It
also
caused
12.6%
decrease
partial
carbon
dioxide
pressure
(pCO2)
32%
increase
oxygen
(pO2),
decreasing
plasma
sodium
1.36%
potassium
6%,
while
increasing
chloride
3%.
findings
underscore
critical
need
for
continuous
monitoring,
early
detection,
proactive
management
mitigate
adverse
impacts
dairy
health
productivity.
Recommendations
include
use
advanced
monitoring
technologies
specific
parameter
tracking
detect
signs
implement
more
timely
interventions.