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. 2022 Dec 23;13:1064328. doi: 10.3389/fmicb.2022.1064328

Table 3.

Relative abundance (%) of Firmicutes, Bacteroidetes, Actinobacteria, and Proteobacteria and their top families in intestinal digesta of enterotoxigenic E. coli challenged pigs fed diets supplemented with antibiotics (AGP) or B. subtilis (DFM).

Jejunal digesta Ileal digesta Colon digesta
Negative control Positive control AGP DFM Negative control Positive control AGP DFM Negative control Positive control AGP DFM
Firmicutes 93.20ab 84.11bcde 89.51abc 91.85abc 93.28a 92.77abc 86.08abcd 95.67a 85.64cde 80.75de 74.89e 81.23de
Bacillaceae 0.03cde 0.07cd 0.27b 0.64a 0.00e 0.06cde 0.02cde 0.18ab 0.00e 0.00e 0.00de 0.02c
Clostridiaceae1 2.89bc 1.78c 4.91bc 3.59bc 11.89a 11.96ab 22.22a 2.88abc 7.22ab 1.46bc 13.56ab 2.35bc
Lachnospiraceae 0.46bc 1.52b 0.43bc 2.55bc 0.13d 0.42bc 2.04cd 0.09d 23.19a 23.15a 21.93a 24.36a
Lactobacillaceae 76.09a 60.26ab 59.44ab 70.54a 47.48b 56.22ab 22.98c 77.12a 15.09cd 14.42cd 4.11d 21.20c
Peptostreptococcaceae 3.82bc 0.06c 3.50ab 2.14bc 9.59a 5.24ab 15.18a 3.82ab 3.96a 0.86ab 7.48a 1.42ab
Ruminococcaceae 0.06cde 0.44bc 0.13b 1.55cde 0.01de 0.04cde 2.59bcd 0.01e 15.52a 18.15a 15.24a 15.75a
Streptococcaceae 4.93abc 9.61ab 18.40a 5.69abc 19.42a 12.98abc 11.01abc 8.94abc 10.78a 6.60bcd 0.09d 3.21cd
Veillonellaceae 4.40cd 6.30abcd 0.09g 3.85cde 1.38efg 1.98def 1.21fg 0.93fg 6.63abc 12.32a 8.09bcd 9.81ab
Bacteroidetes 0.03bc 0.02bc 0.01bc 1.08bc 0bc 0.03bc 4.16b 0c 7.25a 7.35a 12.41a 9.96a
Bacteroidaceae 0b 0b 0b 0b 0b 0b 0.06b 0b 0.01b 0.11b 0.16a 0.01b
Muribaculaceae 0c 0.01c 0.01c 0.11bc 0c 0c 0.49b 0c 2.22a 1.74a 1.94a 2.09a
Prevotellaceae 0.03bc 0.01b 0c 0.94bc 0c 0.03bc 2.98b 0bc 4.64a 5.09a 8.93a 7.23a
Rikenellaceae 0d 0cd 0d 0.03cd 0d 0.01cd 0.54c 0d 0.28ab 0.35b 1.17a 0.57ab
Actinobacteria 4.76a 9.43a 1.79abc 4.37a 2.93abc 4.38ab 0.36c 3.35abc 2.26abc 2.99abc 0.5bc 2.48ab
Actinomycetaceae 0.01bc 0.14a 0.07b 0.05b 0c 0.06b 0c 0.01bc 0c 0c 0c 0c
Atopobiaceae 0.43ab 0.54a 0b 0.32ab 0.13ab 0.17ab 0.07ab 0.09ab 0.36ab 1.45ab 0.28ab 1.01ab
Bifidobacteriaceae 4.22a 8.21a 0.04b 3.81a 2.76a 3.94a 0.11b 3.20a 1.67a 1.10ab 0.01b 1.22a
Coriobacteriaceae 0c 0c 0c 0.02c 0c 0c 0.05c 0c 0.21ab 0.38a 0.20b 0.22ab
Eggerthellaceae 0.06ab 0.21a 0b 0.05ab 0.03ab 0.05ab 0b 0.02ab 0.02ab 0.05ab 0.01ab 0.03ab
Micrococcaceae 0.04c 0.32ab 1.51a 0.11bc 0.01d 0.15bc 0.12bc 0.03c 0d 0d 0d 0d
Proteobacteria 1.89b 0.4b 4.12a 0.22b 3.77ab 2.21ab 7.61a 0.92b 1.69ab 4.84a 4.6a 2.08a
Burkholderiaceae 0a 0a 0.04a 0a 0a 0a 0.41a 0a 0a 0.01a 0a 0a
Desulfovibrionaceae 0b 0b 0b 0.01b 0b 0b 0.04b 0b 0.07a 0.1a 0.14a 0.11a
Enterobacteriaceae 0.17c 0.02abc 0.04abc 0.01c 3.56a 0.64ab 0.71bc 0.04bc 0.07abc 0.01c 0.01c 0.01c
Pasteurellaceae 1.7bc 0.29bcd 3.75a 0.02bcd 0.21bcd 1.54ab 4.85a 0.87bc 0cd 0.01bcd 0cd 0d
Succinivibrionaceae 0d 0.01cd 0.09bc 0.15cd 0d 0cd 1.5bc 0d 1.41b 4.71a 4.45a 1.94a

a–gMeans without a common superscript are different (p < 0.05). Each mean represents 7 observations on day −7 and each mean represents 9–12 observations on day 0 and day 7 and 21 post-inoculation.