Table 3.

Relative abundance (%), expressed as the median and the interquartile range, of the 20 most abundant genera depending on the milk extraction method (manual expression or pumping).

Phylum/Genus	Manual Extraction		Pumping
	n (%)	Relative Abundance	n (%)	Relative Abundance	p-Value 1
Firmicutes
Streptococcus	8 (100%)	23.94 (14.22–42.83)	8 (100%)	37.49 (10.13–55.44)	0.88
Staphylococcus	8 (100%)	20.36 (2.74–22.82)	8 (100%)	8.26 (2.37–14.22)	0.16
Veillonella	5 (63%)	0.21 (0.00–1.44)	7 (88%)	0.86 (0.25–2.51)	0.40
Gemella	4 (50%)	0.10 (0.00–0.40)	6 (75%)	0.48 (0.20–0.68)	0.36
Paenibacillus	8 (100%)	0.19 (0.17–0.20)	8 (100%)	0.14 (0.11–0.16)	0.17
Clostridium	8 (100%)	0.13 (0.09–0.20)	6 (75%)	0.17 (0.11–0.19)	1.00
Bacillus	7 (88%)	0.18 (0.05–0.39)	7 (88%)	0.07 (0.06–0.14)	0.56
Granulicatella	1 (13%)	<0.00	4 (50%)	0.03 (0.00–0.27)	0.10
Leuconostoc	1 (13%)	<0.00	4 (50%)	0.03 (0.00–0.17)	0.11
Actinobacteria
Rothia	8 (100%)	3.27 (0.72–6.51)	8 (100%)	1.60 (1.26-4.30)	0.75
Corynebacterium	8 (100%)	0.39 (0.28-–0.73)	7 (88%)	0.16 (0.08-1.04)	0.44
Cellulomonas	4 (50%)	0.13 (0.00–0.37)	5 (63%)	0.09 (0.00-0.22)	0.87
Streptomyces	4 (50%)	0.09 (0.00–0.26)	5 (63%)	0.13 (0.00-0.17)	0.87
Actinomyces	5 (63%)	0.06 (0.00–0.20)	4 (50%)	0.06 (0.00-0.54)	0.87
Proteobacteria
Acinetobacter	5 (63%)	0.34 (0.00–2.07)	6 (75%)	0.28 (0.05–1.00)	0.87
Sphingomonas	6 (75%)	0.34 (0.05–0.86)	4 (50%)	0.02 (0.00–0.12)	0.21
Pseudomonas	6 (75%)	0.09 (0.03–0.42)	7 (88%)	0.58 (0.15–1.18)	0.23
Erwinia	2 (25%)	0.00 (0.00–0.05)	3 (38%)	0.00 (0.00–0.13)	0.65
Unclassified genera	8 (100%)	19.49 (14.23–27.96)	8 (100%)	15.82 (14.18–28.15)	0.80

¹ Kruskal–Wallis rank tests.