Integrative Zoology,
Journal Year:
2023,
Volume and Issue:
18(6), P. 1027 - 1040
Published: Jan. 6, 2023
Host-associated
microbiota
can
significantly
impact
host
fitness.
Therefore,
naturally
occurring
variations
in
may
influence
the
health
and
persistence
of
their
hosts.
This
finding
is
particularly
important
reintroduced
animals,
as
they
typically
experience
habitat
changes
during
translocations.
However,
little
known
about
how
microbiomes
are
altered
response
to
conservation
translocation.
Here,
we
accessed
gut
microbiome
Przewalski's
horse
(Equus
przewalskii)
populations
China
from
three
nature
reserves
(i.e.
Xinjiang
Kalamaili
Nature
Reserve,
KNR;
Dunhuang
Xihu
National
DXNNR;
Anxi
Extreme-arid
Desert
AENR)
using
16s
rRNA
gene
metagenome
sequencing.
The
results
showed
that
microbial
composition
function
differed
across
locations,
while
a
subset
core
taxa
was
consistently
present
most
samples.
abundance
genes
encoding
microbe-produced
enzymes
involved
metabolism
carbohydrates,
especially
for
glycoside
hydrolases,
higher
open-spaced
KNR
than
more
confined
AENR
individuals.
study
offers
detailed
significant
differential
characters
related
community
metabolic
pathways
various
sites
horse,
which
might
provide
basis
future
microecological
research
on
endangered
animals.
Microbiome,
Journal Year:
2023,
Volume and Issue:
11(1)
Published: Jan. 12, 2023
Abstract
Background
As
a
domesticated
species
vital
to
humans,
horses
are
raised
worldwide
as
source
of
mechanical
energy
for
sports,
leisure,
food
production,
and
transportation.
The
gut
microbiota
plays
an
important
role
in
the
health,
diseases,
athletic
performance,
behaviour
horses.
Results
Here,
using
approximately
2.2
Tb
metagenomic
sequencing
data
from
samples
242
horses,
including
110
caecum
132
rectum
(faeces),
we
assembled
4142
microbial
metagenome-assembled
genomes
(MAG),
4015
(96.93%)
which
appear
correspond
new
species.
From
long-read
data,
successfully
13
circular
whole-chromosome
bacterial
representing
novel
MAG
contained
over
313,568
predicted
carbohydrate-active
enzymes
(CAZy),
59.77%
had
low
similarity
match
CAZy
public
databases.
High
abundance
diversity
antibiotic
resistance
genes
(ARG)
were
identified
MAG,
likely
showing
wide
use
antibiotics
management
horse.
abundances
at
least
36
(e.g.
belonging
Lachnospiraceae
,
Oscillospiraceae
Ruminococcus
)
higher
racehorses
than
nonracehorses.
These
enriched
every
gene
major
pathway
producing
acetate
butyrate
by
fibre
fermentation,
presenting
potential
greater
amount
short-chain
fatty
acids
available
fuel
performance.
Conclusion
Overall,
short-
sequence
horse
gut.
Our
dataset
represents
exhaustive
genome
catalogue
microbiome
provides
valuable
resource
discovery
performance-enhancing
microbes
studies
microbiome.
Microorganisms,
Journal Year:
2022,
Volume and Issue:
10(12), P. 2517 - 2517
Published: Dec. 19, 2022
Horses
are
large
non-ruminant
herbivores
and
rely
on
microbial
fermentation
for
energy,
with
more
than
half
of
their
maintenance
energy
requirement
coming
from
occurring
in
enlarged
caecum
colon.
To
achieve
that,
the
gastro-intestinal
tract
(GIT)
horses
harbors
a
broad
range
various
microorganisms,
differing
each
GIT
segment,
which
essential
efficient
utilization
feed,
especially
to
use
nutrients
that
not
or
little
degraded
by
endogenous
enzymes.
In
addition,
like
other
animal
species,
microbiota
is
permanent
interplay
host's
cells
involved
lot
functions
among
inflammation,
immune
homeostasis,
metabolism.
As
animals
humans,
horse
gut
microbiome
sensitive
diet,
consumption
starch,
fiber,
fat.
Age,
breeds,
stress
during
competitions,
transportation,
exercise
may
also
impact
microbiome.
Because
its
size
complexity,
equine
prone
perturbations
caused
external
internal
stressors
result
digestive
diseases
gastric
ulcer,
diarrhea,
colic,
colitis,
thought
be
linked
systemic
laminitis,
metabolic
syndrome
obesity.
Thus,
this
review
we
aim
at
understanding
common
core
-in
terms
structure
function-
segment
GIT,
as
well
identifying
potential
biomarkers
health
disease
crucial
anticipate
putative
perturbations,
optimize
global
practices
develop
adapted
nutritional
strategies
personalized
nutrition.
Animal Microbiome,
Journal Year:
2023,
Volume and Issue:
5(1)
Published: Jan. 12, 2023
Abstract
The
equine
gastrointestinal
tract
is
a
self-sufficient
fermentation
system,
housing
complex
microbial
consortium
that
acts
synergistically
and
independently
to
break
down
lignocellulolytic
material
enters
the
gut.
Despite
being
strict
herbivores,
equids
such
as
horses
zebras
lack
diversity
of
enzymes
needed
completely
plant
tissue,
instead
relying
on
their
resident
microbes
carry
out
fibrolysis
yield
vital
energy
sources
short
chain
fatty
acids.
bulk
digestion
occurs
in
large
intestine,
where
digesta
fermented
for
36–48
h
through
synergistic
activities
bacteria,
fungi,
methanogenic
archaea.
Anaerobic
gut
dwelling
bacteria
fungi
polysaccharides
combined
mechanical
enzymatic
strategies,
notably
possess
some
greatest
repertoire
carbohydrate
active
among
characterized
microbes.
In
addition
production
enzymes,
equid-isolated
anaerobic
have
been
shown
cellulosomes,
powerful
multi-enzyme
complexes
further
enhance
down.
both
are
facilitated
by
facultatively
aerobic
yeasts
archaea,
who
maintain
an
optimal
environment
fibrolytic
organisms,
ultimately
leading
increased
counts
heightened
activity.
unique
interactions
within
well
novel
species
mechanisms
employed
these
makes
valuable
ecosystem
study
functions
communities.
This
review
outlines
primary
taxa
involved
fibre
illuminates
strategies
metabolic
pathways
used
We
discuss
current
methods
analysing
communities
propose
shift
towards
development
functional
assays
deepen
our
understanding
this
ecosystem.
Frontiers in Veterinary Science,
Journal Year:
2024,
Volume and Issue:
11
Published: May 14, 2024
Diet
is
one
of
the
main
factors
influencing
intestinal
microbiota
in
horses,
yet
a
systematic
characterization
along
length
digestive
tract
clinically
healthy
homogenous
for
age
and
breed
receiving
specific
diet
lacking.
Frontiers in Cellular and Infection Microbiology,
Journal Year:
2021,
Volume and Issue:
11
Published: May 14, 2021
Respiratory
infections
in
domestic
animals
are
a
major
issue
for
veterinary
and
livestock
industry.
Pathogens
the
respiratory
tract
share
their
habitat
with
myriad
of
commensal
microorganisms.
Increasing
evidence
points
towards
pathobiome
concept,
integrating
dysbiotic
bacterial
communities,
host
environment
new
understanding
disease
etiology.
During
infection,
airway
microbiota
likely
regulates
is
regulated
by
pathogens
through
diverse
mechanisms,
thereby
acting
either
as
gatekeeper
that
provides
resistance
to
pathogen
colonization
or
enhancing
prevalence
co-infectivity,
which
often
results
exacerbation.
Insight
into
complex
interplay
taking
place
between
pathogens,
microbiota,
its
during
infection
research
field
infancy
most
studies
focused
on
from
enteric
gut
microbiota.
However,
may
improve
control
reduce
severity
microbial-related
diseases,
including
those
zoonotic
potential.
BMC Veterinary Research,
Journal Year:
2022,
Volume and Issue:
18(1)
Published: Sept. 8, 2022
Abstract
Background
The
conventional
feeding
management
of
horses
is
still
characterized
by
high
starch
and
low
fibre
diets,
which
can
negatively
affect
horse’s
gastrointestinal
health.
Thus,
the
aim
this
study
was
to
compare
effects
a
high-starch
(HS)
vs.
high-fibre
(HF)
diet
on
gut
health
in
horses.
A
total
19
Bardigiano
destined
for
slaughter
aged
14.3
±
0.7
months
were
randomly
allotted
two
dietary
groups:
HS
(5
fillies
4
colts,)
HF
group
(7
3
colts).
They
received
same
first-cut
meadow
hay
but
different
complementary
feeds
72
days:
fed
8
kg/animal/day
starch-rich
feed
while
3.5
fibre‐rich
feed.
At
slaughter,
stomachs
separated
washed
evaluation
glandular
squamous
regions.
Also,
duodenum,
jejunum,
ileum,
apex
caecum,
sternal
flexure,
pelvic
right
dorsal
colon,
rectum
liver
excised
submitted
histomorphometrical
evaluation.
Results
region
presented
more
severe
gastric
mucosa
lesions
compared
(
P
=
0.006).
Moreover,
statistical
tendency
0.060)
found
region,
presenting
higher
score
than
diet.
Regarding
morphometry,
jejunum
villus
height
crypt
depth
(Cd)
ratio
influenced
sex,
being
greater
males
females
0.037)
ileum
Cd
depended
interaction
between
sex
diet,
0.029).
duodenum
colon
severity
inflammation
0.024
0.050),
males.
On
contrary,
0.052).
Conclusions
These
results
suggested
that
provoked
stomach
both
flexure.
present
represent
starting
point
further
investigations
Pharmaceutics,
Journal Year:
2023,
Volume and Issue:
15(1), P. 186 - 186
Published: Jan. 4, 2023
While
the
global
market
for
veterinary
products
has
been
expanding
rapidly,
there
is
still
a
lack
of
specialist
knowledge
equine
pharmaceutics.
In
many
cases,
basic
structure
gastrointestinal
tract
(GIT)
and
integumentary
system
horse
shares
similarities
with
those
humans.
Generally,
dosage
form
developed
humans
can
be
repurposed
to
deliver
medications;
however,
due
physiological
variation,
therapeutic
outcomes
unpredictable.
This
an
area
that
requires
more
research,
as
clear
deficiency
in
literature
precedence
on
drug
delivery
specifically
horses.
Through
careful
evaluation
anatomy
physiology,
novel
systems
(NDDSs)
adequately
address
medical
ailments
horse.
addition
this,
are
key
considerations
when
delivering
oral,
topical,
parenteral
drugs
horses,
deriving
from
age
species
variation.
More
importantly,
NDDSs
enhance
duration
action
active
animals,
significantly
improving
owner
compliance;
ultimately,
enhancing
convenience
product
administration.
To
gap
pharmaceutical
formulations,
this
paper
begins
summary
physiology
gastrointestinal,
integumentary,
circulatory
systems.
A
detailed
discussion
potential
dosage-form
related
issues
affecting
how
they
overcome
by
employing
presented.