The Science of The Total Environment,
Journal Year:
2023,
Volume and Issue:
874, P. 162522 - 162522
Published: March 1, 2023
Despite
the
role
of
microorganisms
in
nitrogen
biotransformation
has
been
extensively
explored,
how
mitigate
NH3
emissions
transformation
throughout
composting
system
is
rarely
addressed.
The
present
study
explored
effect
microbial
inoculants
(MIs)
and
contribution
different
composted
phases
(solid,
leachate,
gas)
on
by
constructing
a
co-composting
kitchen
waste
sawdust
with
without
addition
MI.
results
showed
that
increased
markedly
after
adding
MIs,
which
leachate
ammonia
volatilization
to
was
most
prominent.
core
emission
had
clear
proliferation
owing
MIs
reshaping
community
stochastic
process.
Also,
can
strengthen
co-occurrence
between
functional
genes
promote
metabolism.
In
particular,
abundances
nrfA,
nrfH,
nirB
genes,
could
augment
dissimilatory
nitrate
reduction
process,
were
increased,
thus
enhancing
emissions.
This
bolsters
fundamental,
community-level
understanding
treatments
for
agricultural.
Antibiotics,
Journal Year:
2025,
Volume and Issue:
14(1), P. 89 - 89
Published: Jan. 14, 2025
Objective:
We
set
out
to
evaluate
the
persistence
of
sulfachloropyridazine,
oxytetracycline,
and
enrofloxacin
in
broiler
chicken
litter
following
therapeutic
oral
treatment
its
association
with
isolation
Escherichia
coli
resistant
these
antimicrobials.
Methods:
Forty
chickens
were
raised
under
controlled
conditions
divided
into
three
experimental
groups,
each
treated
a
different
antimicrobial,
addition
an
untreated/control
group.
Litter
samples
collected
post
treatment,
analyzed
by
UPLC-MS/MS,
processed
for
E.
coli.
The
antimicrobial
susceptibility
was
assessed
using
Kirby–Bauer
disk
diffusion
method.
Results:
Chemical
analysis
detected
concentrations
antimicrobials
throughout
reaching
maxima
42,910.14
μg
kg−1,
92,712
9567
kg−1
oxytetracycline
plus
4-epi-oxytetracycline,
ciprofloxacin,
respectively.
It
estimated
that
would
persist
61,
244,
514
days,
A
very
strong
observed
between
presence
residues
resistance
(p-value
<
0.0001,
Cramer’s
coefficient
0.47),
independence
level
residue
concentration
0.5262).
Conclusions:
contributes
selection
bacteria,
regardless
persistent
concentrations.
These
findings
highlight
need
stricter
regulations
on
poultry
management,
including
thresholds
monitoring,
minimize
environmental
public
health
risks.
Proper
is
essential
ensure
sustainable
safe
re-use
agricultural
systems.
