Frontiers in Veterinary Science,
Journal Year:
2024,
Volume and Issue:
11
Published: Nov. 8, 2024
Rumen-protected
methionine
(RPM)
such
as
coated
(CM)
and
2-hydroxy-4-(methylthio)-butanoic
acid
isopropyl
ester
(HMBi)
was
usually
used
in
dairy
cows,
but
how
RPM
affects
meat
goats
remains
unclear.
In
this
study,
thirty
weaned
male
Jianzhou
Da'er
were
randomly
assigned
to
one
of
three
treatments:
fed
basal
diet
or
supplemented
with
0.12%
CM
0.22%
HMBi,
the
aim
examining
their
impact
on
growth
performance,
serum
biochemistry,
rumen
fermentation,
microbiota,
intestinal
development
goats.
The
findings
indicate
that
HMBi
supplementation
led
an
increase
body
weight,
feed
intake,
feed-to-gain
ratio,
whereas
only
resulted
intake
(all
Frontiers in Veterinary Science,
Journal Year:
2024,
Volume and Issue:
11
Published: July 12, 2024
Introduction
The
ban
on
antibiotics
in
animal
husbandry
underscores
the
crucial
need
for
safe,
natural
feed
additives.
This
study
investigates
effects
of
Ampelopsis
grossedentata
flavonoids
(AGF)
and
Tween
80
growth
performance,
blood
indexes,
rumen
microbiota
Nubian
goats,
evaluating
their
potential
as
alternative
additives
livestock
management.
Methods
Thirty-two
goats
were
randomly
divided
into
four
groups.
control
group
(CON
group)
was
provided
with
a
basal
diet,
while
experimental
groups
received
diets
supplemented
various
dietary
duration
100
days:
either
diet
25
mg/kg
monensin
(MN
group),
containing
2.0
g/kg
(AGF
or
7.5
mL/kg
(TW
group).
Blood
fluid
samples
collected
analysis
at
end
feeding
period.
Growth
performance
monitored
through
regular
weighing
intake
measurements.
indexes
analyzed
using
standard
biochemical
techniques,
microbial
composition
determined
high
throughput
16S
rRNA
gene
sequencing
to
assess
diversity
function.
treatments
then
evaluated.
Results
AGF
exhibited
significantly
increased
average
daily
gain,
decreased
feed-to-gain
ratio
(
p
<
0.05).
revealed
no
differences
between
CON
groups,
both
showing
higher
concentrations
triglyceride,
low-density
lipoprotein
cholesterol,
glutamic-pyruvic
transaminase,
alkaline
phosphatase,
lactate
dehydrogenase
compared
TW
had
glucose,
glutamic-oxaloacetic
transaminase
levels
than
MN
Microbial
that
greater
alpha-diversity
other
beta-diversity
showed
closer
similarity
LEfSe
identified
Proteobacteria,
Deferribacteres,
Ehryarchaeoia
,
Elusimicrobia
biomarkers
distinguishing
among
In
conclusion,
supplementation
relative
abundance
beneficial
bacteria
thus
enhanced
performance.
abundance,
suggesting
benefits
health
despite
poor
palatability.
These
findings
highlight
new
green
additive
important
implications
efficiency
development
husbandry.
Animal Science Journal,
Journal Year:
2024,
Volume and Issue:
95(1)
Published: Jan. 1, 2024
This
study
investigated
the
impact
of
different
levels
coated
cysteamine
hydrochloride
(CSH)
supplementation
on
ruminal
fermentation,
nutrient
digestibility,
and
blood
metabolites
in
Charolais
cross
bulls.
Twelve
bulls
were
allotted
to
three
feeding
treatments
a
replicated
3
×
Latin
square
design:
0%
CSH
(control),
0.5%
CSH,
1.0%
concentrate.
Animals
fed
concentrate
at
1.5%
body
weight.
Dry
matter
intake
(DMI)
DMI
as
percentage
weight
showed
no
significant
differences
among
(p
>
0.10).
Nutrient
digestibility
was
consistent
across
treatments,
except
for
slight
decrease
NDF
with
1%
=
0.07).
Ruminal
pH,
ammonia
nitrogen,
volatile
fatty
acid
(VFA)
proportions,
total
VFA
concentration
similar
0.05).
Total
bacteria,
fungal
zoospores,
protozoa
populations
rumen
did
not
vary
significantly
Blood
glucose
triglyceride
concentrations
remained
stable
0.05),
while
urea
nitrogen
(BUN)
higher
CSH-supplemented
groups
<
In
conclusion,
incorporating
ranging
from
into
diet
adversely
affect
feed
intake,
or
microbial
populations.
Additionally,
improved
BUN
growing
Microorganisms,
Journal Year:
2024,
Volume and Issue:
12(11), P. 2131 - 2131
Published: Oct. 24, 2024
Anaerobic
fermentation
is
a
potentially
cost-effective
approach
to
disposing
of
metal-contaminated
biowaste
collected
during
phytoremediation.
However,
the
compound
heavy
metals
contained
in
may
limit
efficiency
anaerobic
fermentation.
In
this
study,
with
alfalfa
harvested
from
an
iron
tailing
as
feedstock
was
set
up
and
further
enhanced
by
granular
activated
carbon
(AC).
The
results
showed
that
adding
AC
improved
cumulative
biogas
yields
contaminated
(AM)
2.26
times.
At
peak
stage,
plenty
microbes
were
observed
on
surface
AC,
functional
groups
contributed
better
electron
transfer,
lower
metal
toxicity
higher
CH
Frontiers in Veterinary Science,
Journal Year:
2024,
Volume and Issue:
11
Published: Nov. 8, 2024
Rumen-protected
methionine
(RPM)
such
as
coated
(CM)
and
2-hydroxy-4-(methylthio)-butanoic
acid
isopropyl
ester
(HMBi)
was
usually
used
in
dairy
cows,
but
how
RPM
affects
meat
goats
remains
unclear.
In
this
study,
thirty
weaned
male
Jianzhou
Da'er
were
randomly
assigned
to
one
of
three
treatments:
fed
basal
diet
or
supplemented
with
0.12%
CM
0.22%
HMBi,
the
aim
examining
their
impact
on
growth
performance,
serum
biochemistry,
rumen
fermentation,
microbiota,
intestinal
development
goats.
The
findings
indicate
that
HMBi
supplementation
led
an
increase
body
weight,
feed
intake,
feed-to-gain
ratio,
whereas
only
resulted
intake
(all
