Table 1 ARGs removal efficiency by different treatment strategies.

From: Antibiotic resistance genes from livestock waste: occurrence, dissemination, and treatment

Samples

Treatmenta

ARGsb

Abundance after treatment

Removal efficiency

References

Swine manure

AD

tet, erm

1.0 × 10–1–4 × 10−2 copies/16S rRNA

0.30 log decrease

110

sul, fca, aac

9.07 × 10−1 copies/16S rRNA

1.4–52 times increase

110

tet (5), sul (5), erm (3), fca (1)

104–109 copies/g

1.45 times increase

150

tet (5), erm (4), sul (2)

~3 × 10−2 copies/16S rRNA

1.03–4.23 log decrease

109

Cattle manure

fca

1.69 × 108 copies/g

1.77 times decrease

32

Swine manure

COM

tet (9), aac (4), mdr (2) sul (1), bla (2)

5 × 10−5 (percentage of iTags)

0.74–1.9 log decrease

34

Cattle manure

tet, sul, aac, erm, bla, mdr, fca, van

3 × 10−2 copies/16S rRNA

0.70 log decrease

44

sul (1), erm (2), aac (2), bla (1)

4.6 × 106–5.01 × 109 copies/g

1.0–2.0 log decrease

151

Poultry manure

aac, bla, fca, erm, mdr, sul, tet, other

8 × 10−2–4 × 10−1copies/16S rRNA

0.92–1.4 log decrease

14

tet, fca, sul,van, bla, aac

2.6 × 104 copies/g

1.2 log decrease

152

Swine wastewater

BIO

tet (2), sul (2), bla (1)

10–105 copies/mL

0.09–2.7 (tet), 0.17–1.7 (sul) 0.11–2.0 (bla) log decrease

105

tet (1), sul (1), erm (1), fca (1), mcr (1)

3.1 × 10–7.1 × 105 copies/mL

0.3–3.1 log decrease

20

tet (18), sul (2)

2.6 × 108–1.1 × 10 copies/mL

0.57–0.94 log decrease

13

tet (4), sul (2)

1.0 × 105–1.5 × 1010 copies/mL

0.1–3.3 log decrease

153

Swine wastewater

CWs

tet (5)

10−3–10−1 copies/16S rRNA

0.26–3.0 log decrease

122

tet

3 × 10−3–1 × 10−2 copies/16S rRNA

0.18–2.0 log decrease

106

tet (3)

1.0 × 109–1.5 × 1010 copies/L

0.5–1.0 log decrease

107

  1. aAD anaerobic digestion, COM composting, BIO biological treatment process, CWs constructed wetlands.
  2. bThe abbreviation is shown in Table S1. The number in the bracket indicates the number of ARGs investigated. For the genes without numbers, their abundances were obtained by high-throughput sequencing and the numbers are not provided.