IntechOpen eBooks,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 17, 2024
The
plants’
extracts
have
recently
emerged
as
a
cheap
and
natural
source
of
additives
to
preserve
enhance
sperm
functions
during
the
cryopreservation
process.
Extracts
from
plants
are
reported
be
main
sources
antioxidants
with
lower
cytotoxicity
compared
therapeutic
antioxidants.
numerous
valuable
plant
properties,
such
antioxidants,
antimicrobial,
antiviral,
anti-inflammatory,
antiparasitic,
been
linked
extracts.
Numerous
different
species
used
preservatives
for
livestock
semen
cryopreservation.
During
these
processes,
added
extender
in
doses
keep
motile
viable
throughout
cryopreservation,
including
pre-freezing,
equilibration,
post-thawing.
quality
parameters
can
improved
by
adding
compounds
that
exert
protection
against
bacteria
reactive
oxygen
scavengers
extender.
Although
application
storage
is
still
emerging,
their
potential
promising.
They
represent
economically
alternatives
conventional
currently
employed
preservation.
This
review
focuses
on
aspects
related
role
domesticated
species.
Reproduction Fertility and Development,
Journal Year:
2024,
Volume and Issue:
36(5)
Published: March 6, 2024
Addition
of
antibiotics
to
semen
extenders
was
taken
for
granted
many
years,
from
the
time
that
commercial
artificial
insemination
in
livestock
first
began
decades
ago.
However,
there
is
now
a
growing
realisation
this
non-therapeutic
utilisation
antibacterial
agents
contrary
current
recommendations
prudent
use
medical
and
veterinary
professionals
are
advised
follow.
Furthermore,
not
benign,
having
negative
effects
on
sperm
samples,
inseminated
female,
personnel
potentially
environment.
The
purpose
review
three-fold:
highlight
fact
used
extenders,
with
result
considerable
amounts
globally
animal
breeding,
recent
studies
aspects
using
purpose,
look
at
possible
alternatives.
Recent
changes
legislation
regarding
occurred
some,
but
all,
countries,
leaving
question
marks
producers
as
whether
should
be
added
or
not.
Cryobiology,
Journal Year:
2025,
Volume and Issue:
119, P. 105233 - 105233
Published: March 19, 2025
Although
freezing
methods
have
been
optimized
for
preserving
sperm
integrity,
their
effectiveness
in
sustaining
bacterial
viability
is
unknown.
Therefore,
culturing
thawed
semen
samples
might
not
give
an
accurate
picture
of
the
bacteria
original
sample.
The
aim
this
study
was
to
assess
how
cryopreservation
and
storage
duration
influence
populations
survival
distinct
species.
Semen
were
collected
from
14
bulls,
diluted
equal
proportions
antibiotic-free
extender
transported
laboratory
at
6
°C
overnight.
Aliquots
cultured
within
24
h
after
collection
on
Plate
Count
Agar
calculate
number
bacteria,
blood
agar
plates
(5
%
bovine
blood)
identification
remaining
1:1
Brain
Heart
Infusion
(BHI)
broth
with
30
glycerol
stored
-80
°C.
frozen
quantification
as
described
fresh
semen,
13
days
isolated
re-cultured
agar,
incubated
one
day
37
before
by
Matrix
assisted
laser
desorption
ionization-time
flight
mass
spectrometry.
Total
counts
remained
consistent
across
cryopreserved
regardless
duration.
A
total
31
species
identified,
20
detected
samples,
16
present
storage,
18
observed
days.
Ten
persisted
all
time
points,
while
others
unique
a
specific
sampling
day,
including
nine
1,
two
6,
five
13.
These
findings
suggest
that
does
alter
overall
load,
individual
varies
depending
conditions.
Reproduction in Domestic Animals,
Journal Year:
2025,
Volume and Issue:
60(4)
Published: April 1, 2025
ABSTRACT
This
study
investigated
the
potential
of
incorporating
curcumin
oil
nano‐emulsion
(CONE)
into
a
Tris‐based
freezing
extender
to
relieve
cryodamage
effects
and
enhance
sperm
cryo‐resistance
in
buffalo
bulls.
Pooled
semen
from
five
fertile
bulls
(
n
=
40
ejaculates)
was
divided
supplemented
with
0.5%
CONE
(CONE0.5),
1%
(CONE1),
or
without
(CONE0,
control),
then
extended
packaged.
Post‐thaw
assessments
included
kinematic
parameters,
oxidative
stress
markers,
apoptosis
levels,
microbial
load,
ultrastructural
integrity,
molecular
docking
interactions,
conception
rates.
The
CONE0.5
group
exhibited
significantly
higher
viability,
progressive
motility,
membrane
as
well
lower
nitric
oxide
MDA
compared
CONE0
CONE1
groups
p
<
0.05),
indicating
reduced
stress.
Compared
group,
percentage
viable
early
apoptotic
sperm,
late
0.05).
Both
CONE‐treated
demonstrated
post‐thaw
total
bacterial,
spore‐forming
coliform
bacterial
counts
Conception
rates
were
(80.0%)
(68.0%)
>
Molecular
analysis
revealed
strong
binding
affinities
between
caspase‐3
(−7.87
kcal/mol),
HSP70
(−8.52
PRDX‐1
(−8.90
suggesting
mechanisms
action.
In
summary,
inclusion
cryoprotective
additive
media
demonstrates
for
improving
quality
possible
enhancement
reproductive
efficiency.
Agricultural science Euro-North-East,
Journal Year:
2025,
Volume and Issue:
26(2), P. 223 - 238
Published: April 25, 2025
In
recent
years,
assisted
reproductive
technologies
in
animal
production
have
included
artificial
insemination
need
of
high-quality
cryopreserved
bull
sperm.
High-quality
freezing
depends
on
the
optimally
selected
parameters
semen
diluent.
this
connection,
purpose
review
is
to
spread
knowledge
about
use
various
types
diluents
and
additives
them
cryopreservation
improve
its
quality.
This
article
provides
an
overview
64
scientific
papers
domestic
foreign
researchers
modeling
order
ensure
maximum
yield
sperm
after
thawing.
Research
into
creation
optimal
diluent
protection
save
from
cryoinjury
during
a
long
time,
which
can
preserve
properties
liquid
nitrogen
has
been
carried
out
since
mid-20th
century.
Classic
media
with
known
composition
(LPG,
Tris,
MOPS,
etc.)
commercial
(Andromed,
BullXcell,
OptiXcell,
are
used
dilute
before
cryopreservation.
The
different
variants
extenders
by
countries
important
information
effect
extender
compositions
quality
parameters,
such
as
motility,
viability,
percentage
abnormal
sperm,
etc.,
long-term
Also,
recently,
inclusion
natural
or
synthetic
origin
extenders,
exhibit
effects
spermatozoa,
widely
used.
may
be
useful
for
organizations
laboratories
engaged
development
creating
extenders.
Veterinary Research Communications,
Journal Year:
2023,
Volume and Issue:
48(1), P. 39 - 48
Published: July 22, 2023
Semen
samples
contain
bacteria
originating
from
the
animal
urogenital
tract,
environment,
and/or
contamination
during
semen
processing,
negatively
affecting
sperm
quality
by
producing
toxins
competing
for
nutrients
in
extenders.
The
aims
of
this
study
were
to
evaluate
two
methods
Single-layer
centrifuges
(SLC),
high
and
low
density
colloid,
as
a
method
bacterial
removal
bull
semen,
after
treatment.
In
total,
20
bulls
(3
ejaculates
per
bull)
used
study.
Bacterial
reduction
was
evaluated
quantification
(colony
forming
unit
-
CFU/mL)
while
identification
performed
matrix-assisted
laser
desorption
ionization-time
flight
mass
spectrometry
(MALDI-TOF
MS)
culturing
on
blood
agar.
Sperm
motility
parameters
Computer
Assisted
Analyses
(CASA),
chromatin
structure
assay
(SCSA)
Flow
cytometry.
Both,
High
Low
SLC
reduced
number
significantly
(p
<
0.001)
compared
with
control.
difference
count
between
also
significant
0.001).
Furthermore,
successful
removing
almost
all
Bacillus
Proteus
spp.
Most
CASA
improved
both
treatments
0.001,
p
0.01,
0.05).
Deoxyribonucleic
acid
(DNA)
fragmentation
index
SCSA
0.01)
0.05)
group
differed
centrifugation
(SLC)
either
or
colloid
is
suitable
semen.
Sensors,
Journal Year:
2023,
Volume and Issue:
23(15), P. 6978 - 6978
Published: Aug. 6, 2023
The
primary
role
of
semen
processing
and
preservation
is
to
maintain
a
high
proportion
structurally
functionally
competent
mature
spermatozoa,
that
may
be
used
for
the
purposes
artificial
reproduction
when
needed,
whilst
minimizing
any
potential
causes
sperm
deterioration
during
ex
vivo
handling.
Out
multitude
variables
determining
success
preservation,
bacterial
contamination
has
been
acknowledged
with
an
increased
interest
because
its
often
unpredictable
complex
effects
on
quality.
Whilst
antibiotics
are
usually
most
straight-forward
option
prevent
semen,
antimicrobial
resistance
become
serious
threat
requiring
widespread
attention.
As
such,
besides
discussing
consequences
bacteriospermia
vitality
risks
antibiotic
overuse
in
andrology,
this
paper
summarizes
currently
available
evidence
alternative
strategies
prior
to,
during,
following
processing,
selection,
preservation.
Alternative
antibacterial
supplements
reviewed,
emphasis
given
modern
methods
selection
combined
by
physical
removal
bacteria
or
use
assisted
reproductive
technologies.
Animal Reproduction Science,
Journal Year:
2024,
Volume and Issue:
268, P. 107569 - 107569
Published: July 30, 2024
A
seasonal
effect
on
sperm
quality
parameters
was
observed
previously.
Although
identification
of
the
bull
semen
microbiota
by
16S
rRNA
sequencing
performed
previously,
it
has
not
been
carried
out
in
commercial
samples
from
different
seasons,
and
its
connection
with
evaluated
yet.
The
objectives
this
study
were;
(i)
to
evaluate
diversity
(ii)
find
if
specific
bacteria
were
associated
differences
parameters.
Bull
identified
54
3
seasons
(winter,
spring,
summer).
Sperm
analysed
Computer
Assisted
Analyses
(CASA)
Flow
Cytometry
(FC).
From
28
phyla
all
samples,
six
their
distribution.
At
genus
level,
388
genera
identified,
which
22
had
a
relative
abundance
over
1
%
showed
bacterial
diversity,
9
present
seasons.
Differences
between
spring
summer
(P
<
0.05)
for
live
hydrogen
peroxide
positive
cells.
trend
towards
significance
(0.10
>
P
some
CASA
kinematics
(VCL
LIN)
FC
(High
respiratory
activity,
cells)
Nevertheless,
associations
spring.
Veterinary and Animal Science,
Journal Year:
2024,
Volume and Issue:
26, P. 100407 - 100407
Published: Nov. 7, 2024
Extraction
of
epididymal
spermatozoa
may
be
necessary
to
avoid
losing
valuable
genetic
material,
for
example,
from
individuals
rare
breeds
or
endangered
species,
but
the
resulting
sperm
samples
poor
quality.
Two
methods
extracting
bull
slaughterhouse
material
were
compared.
The
bulls
16-23
months
age.
Spermatozoa
extracted
by
making
an
incision
one
cm
in
length
tail
epididymis
allow
flow
out
(method
A),
flushing
B).
two
used
each
bull,
alternating
between
right
and
left
epididymis,
i.e.
if
method
A
was
Bull
1,
it
2,
etc.
Sperm
concentration
adjusted
69
×
10