Network analyses unraveled the complex interactions in the rumen microbiota associated with methane emission in dairy cattle
Animal Microbiome,
Год журнала:
2025,
Номер
7(1)
Опубликована: Март 11, 2025
Methane
emissions
from
livestock,
particularly
dairy
cattle,
represent
a
significant
source
of
greenhouse
gas,
contributing
to
the
global
climate
crisis.
Understanding
complex
interactions
within
rumen
microbiota
that
influence
methane
is
crucial
for
developing
effective
mitigation
strategies.
This
study
employed
Weighted
Gene
Co-expression
Network
Analysis
investigate
emissions.
By
integrating
extensive
sequencing
data
with
precise
emission
measurements
in
750
Holstein
our
research
identified
distinct
microbial
communities
and
their
associations
production.
Key
findings
revealed
blue
module
network
analysis
was
significantly
correlated
(0.45)
In
this
module,
taxa
included
genera
Prevotella
Methanobrevibactor,
along
species
such
as
brevis,
ruminicola,
baroniae,
bryantii,
Lachnobacterium
bovis,
Methanomassiliicoccus
luminyensis
are
key
components
drive
networks.
However,
absence
metagenomics
difficult
reveal
deeper
level
functional
profiles.
The
application
provided
comprehensive
understanding
microbiota-methane
relationship,
serving
an
innovative
approach
microbiota-phenotype
association
studies
cattle.
Our
underscore
importance
microbiota-trait
microbiota-microbiota
related
systematic
production
offers
information
on
management
mitigating
environmental
impact
cattle
population.
Язык: Английский
The Effect of Alpine Herbs on the Microbiota of In Vitro Rumen Fermentation
Fermentation,
Год журнала:
2025,
Номер
11(2), С. 83 - 83
Опубликована: Фев. 7, 2025
Milk
from
cows
grazing
on
alpine
pastures
has
higher
quality
than
milk
indoor-fed
cows,
likely
due
to
diet-driven
differences
in
rumen
microbiota.
We
assessed
the
effects
of
supplementing
herbs—each
varying
its
content
fiber,
protein,
and
polyphenol—on
microbiota
via
vitro
fermentation,
comparing
these
a
grass
hay
control
using
metagenomic
sequencing.
Fermentations
with
herbs
compared
had
fibrolytic
Prevotella
lower
abundances
Butyrivibrio,
Ruminococcaceae,
Anaerovibrio,
Succiniclasticum,
Desulfovibrio.
high
starch
(Alchemilla
vulgaris,
Gallium
odoratum
Sanguisorba
officinalis)
low,
microbial
diversity,
while
fermentations
structural
fibre
(Sisymbrium
officinale,
Tanacetum
vulgare,
Cicerbita
alpina)
diversity.
C.
alpina,
Sa.
officinalis,
T.
vulgare
that
lignin
showed
abundance
Bacteroidetes
Firmicutes.
protein
(G.
vulgare)
induced
Lachnospiraceae.
officinalis
A.
vulgaris
polyphenols
were
associated
increased
Streptococcus
family
RF-16
BS11
alpina
Si.
Officinale
Fibrobacter
succinogenes.
The
beta
diversity
between
corresponded
contents
lignin,
plant
material.
In
conclusion,
different
can
promote
various
fibrinolytic
bacteria
change
which
potential
increase
feed
efficiency
robustness
reduce
methane
production.
Язык: Английский
The Effects of Dried Apple Pomace on Fermentation Quality and Proteolysis of Alfalfa Silages
Agronomy,
Год журнала:
2025,
Номер
15(2), С. 438 - 438
Опубликована: Фев. 11, 2025
This
work
aimed
to
evaluate
the
effects
of
dried
apple
pomace
(DAP)
on
fermentation
characteristics
and
proteolysis
alfalfa
silages.
The
was
ensiled
with
(1)
no
additives
(control),
(2)
5%
DAP,
(3)
10%
DAP
(4)
15%
based
fresh
weight
(FW)
for
1,
3,
7,
14,
30
60
days,
respectively.
With
increasing
proportion
lactic
acid
bacteria
(LAB)
count,
(LA)
dry
matter
(DM)
content
linearly
(p
<
0.05)
increased,
while
pH,
acetic
(AA),
propionic
(PA),
butyric
(BA)
ammonia
nitrogen
(NH3-N)
decreased
during
ensiling.
silages
had
significantly
lower
aerobic
(AB),
yeast
enterobacteria
counts
than
control
contents
nonprotein
(NPN),
peptide
(peptide-N)
free
amino
(FAA-N)
activities
carboxypeptidase,
aminopeptidase
proteinase
as
increased
On
day
60,
addition
tryptamine,
phenylethylamine,
putrescine,
cadaverine,
histamine,
tyramine,
spermidine,
spermine
total
biogenic
amines
compared
control.
As
ratio
threonine,
valine,
isoleucine,
leucine,
phenylalanine,
lysine,
histidine,
arginine,
aspartic
acid,
serine,
glutamic,
acids,
crude
protein
(CP)
water-soluble
carbohydrates
(WSCs)
glycine,
alanine,
cysteine,
proline
60.
Overall,
optimal
indicated
by
better
quality
less
other
treatments.
Язык: Английский
Dietary Moringa oleifera improves goat milk quality: Benefits for human nutrition and the dairy industry
Miri Cohen,
Einav Shor-Shimoni,
Tzach Glasser
и другие.
Food Chemistry,
Год журнала:
2025,
Номер
479, С. 143786 - 143786
Опубликована: Март 9, 2025
This
study
evaluated
the
effects
of
Moringa
oleifera
silage
on
milk
quality
in
lactating
goats,
aiming
to
produce
a
nutritionally
enriched
product
with
health-promoting
compounds.
In
line
this
goal,
from
Moringa-fed
goats
exhibited
higher
fat,
protein,
and
lactose
contents,
along
significant
reduction
somatic
cell
count,
compared
those
fed
clover
hay.
Enhanced
antioxidant
status
was
indicated
by
increased
α-tocopherol
(P
<
0.05)
lower
malondialdehyde
levels
0.05).
Additionally,
showed
substantial
increase
both
yield
0.01)
concentration
0.001)
phospholipids,
changes
their
composition.
accompanied
omega-3
fatty
acids
n-6/n-3
ratio
0.01).
The
highlights
beneficial
potential
dietary
supplementation
enriching
nutritional
value
goat
inducing
accumulation
nutraceutical
attributes.
Язык: Английский
Microbiomic and Metabolomic Insights into the Roles of Hydrolysable Versus Condensed Tannins on the Growth Performance, Nutrient Digestion, and Rumen Fermentation in Liaoning Cashmere Goats
Microorganisms,
Год журнала:
2025,
Номер
13(4), С. 933 - 933
Опубликована: Апрель 17, 2025
This
study
was
conducted
to
compare
the
effects
of
hydrolysable
versus
condensed
tannins
on
growth
performance,
nutrient
digestion,
and
rumen
fermentation
in
goats.
A
total
27
Liaoning
cashmere
goats
with
similar
initial
body
weights
were
randomly
distributed
into
three
groups:
a
basal
diet,
diet
+0.5%
tannic
acid
(hydrolysable
tannin,
HT),
or
quebracho
tannin
(condensed
CT),
respectively.
Compared
control
group,
HT
showed
decreased
(p
<
0.05)
feed
intake,
while
CT
an
increased
intake
weight
gain.
Digestibility
dry
matter,
crude
protein,
neutral
detergent
fiber,
fiber
did
not
differ
>
among
groups.
The
group
lower
pH
acetic
concentration
0.05),
decrease
abundances
Verrucomicrobia
Methanobrevibacter.
Supplementation
levels
dihydrouracil,
xanthosine,
alpha-D-mannose,
L-tryptophan,
these
metabolites.
In
conclusion,
this
suggested
that
responses
ruminal
microbiota
metabolite
profiles
type
varied,
displayed
more
positive
effect
performance
than
when
supplemented
at
same
level
diets.
Язык: Английский
Inclusion of Fermented Cassava Top and Root with Inoculation in Total Mixed Ration Silage Diets: Ensilage Quality and Nutrient Digestibility of Backgrounding Crossbred Bulls
Veterinary Sciences,
Год журнала:
2025,
Номер
12(5), С. 402 - 402
Опубликована: Апрель 24, 2025
The
use
of
cassava
as
a
feed
resource
is
the
main
focus
strategies
that
aim
to
increase
efficiency
beef
cattle.
In
this
study,
ratio
fresh
tops
roots
(CTR)
was
1:1,
1:2,
1:3,
and
1:4
w/w,
in
addition
incorporation
yeast
lactic
acid
bacteria
(YL).
CTRS
inoculated
vitro
with
rumen
fluid
substrate
mixture
evaluate
gas
production
fermentation
quality.
vivo,
crossbred
cattle
were
randomly
allocated
three
dietary
treatments:
control
group
two
groups
received
total
mixed
ration
(TMR)
silage
either
35%
or
70%
concentrate
replaced
CTRS.
This
study
found
levels
crude
protein
condensed
tannins
(CTs)
relatively
increased
by
(p
<
0.05),
while
pH
decreased
proportion
increased.
significantly
enhanced
dry
matter
digestibility,
cumulative
at
96
h,
kinetics,
MBP
especially
1:2
group.
vivo
experiment,
DM
intake,
CP,
propionic
concentration
compared
showed
great
potential
for
improving
NDF
digestibility.
Moreover,
when
TMR
substituted
offered
cattle,
it
ruminal
NH3-N
blood
glucose
0.05).
reduced
cost
50.54%
Our
findings
suggest
optimizing
inclusion
could
be
viable
strategy
producers
aiming
enhance
performance
profitability.
Язык: Английский
Graduate Student Literature Review: Concepts and challenges of amino acid supply and nitrogen metabolism in dairy cattle
Journal of Dairy Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 1, 2025
Nitrogen
utilization
in
dairy
cows
is
crucial
for
maximizing
production
efficiency
and
minimizing
environmental
impacts.
Ruminants
possess
a
unique
digestive
system
filled
with
microorganisms
that
work
synergically
to
degrade
feed
particles
provide
nutrients
both
the
microorganism
host
metabolism.
Dietary
N,
supplied
as
true
protein
NPN,
undergoes
different
degradation
processes:
portion
degraded
rumen,
another
escapes
ruminal
(i.e.,
RUP).
Rumen-degraded
essential
microbial
growth,
contributing
formation
of
CP
(MCP).
Amino
acids
present
MCP
RUP
are
digested
absorbed
into
bloodstream
become
available
animal
metabolism
(e.g.,
maintenance,
production)
constitute
MP.
Accurately
assessing
degradability
AA
availability
remains
challenge
due
limitations
current
evaluation
methods.
In
situ
techniques
most
commonly
used
technique
this
purpose,
but
they
not
meant
predict
MCP,
RUP,
consequently
metabolizable
supply
ingredients,
which
compromises
diet
formulation.
Microbial
growth
enhanced
when
fermentable
energy
N
rumen.
However,
extent
recycling
sustaining
under
low-protein
diets
adequately
captured
by
prediction
models.
Due
these
limitations,
several
biases
added
models,
resulting
overfeeding
an
attempt
MP
requirements
increasing
costs
overload
environment.
Therefore,
review
aims
synthesize
fundamental
information
on
complex
interplay
factors
influencing
degradation,
synthesis,
supply,
metabolism,
efficiency,
highlight
knowledge
gaps
must
be
addressed
improve
accuracy
models
cattle.
Язык: Английский