Table 3. Results of multiple correspondence analysis between cecal microbiota composition and digestive efficiency.

		Axis
		1	2
Eigen Value		0.3056	0.2552
Percentage of variance explained by the axis		15.28	28.04
Contribution of active variables to MCA analysis (%)
Lactobacillus		0.63	10.42
L. salivarius		4.25	2.66
L. crispatus		1.03	1.91
C. leptum		2.55	11.81
C. coccoides		0.89	0.05
E. coli		9.91	3.16
L. salivarius / Lactobacillus		6.05	0.50
L. crispatus / Lactobacillus		0.90	12.44
C. leptum / Lactobacillus		3.93	3.11
C. coccoides / Lactobacillus		1.46	11.06
E. coli / Lactobacillus		10.73	0.27
L. salivarius / L. crispatus		4.25	4.54
L. salivarius / C. leptum		7.13	0.34
L. salivarius / C. coccoides		4.04	2.82
L. salivarius / E. coli		5.66	0.00
L. crispatus / C. leptum		1.15	13.48
L. crispatus / C. coccoides		3.05	11.32
L. crispatus / E. coli		11.37	0.02
C. leptum / C. coccoides		0.08	1.99
C. leptum / E. coli		9.99	4.51
C. coccoides / E. coli		10.93	3.57
t-test values for illustrative variables 1
AMEn 2	Low 3	-2.63	-2.18
	Medium	0.73	-1.00
	High	2.02	3.36
CDUDM	Low	-2.94	-1.83
	Medium	0.96	-0.86
	High	2.10	2.84
CDUL	Low	-2.18	-1.96
	Medium	0.18	-0.82
	High	2.17	3.00
CDUS	Low	-2.28	-2.36
	Medium	0.67	-0.62
	High	1.70	3.14
CDUP	Low	-3.28	-1.64
	Medium	1.34	-1.70
	High	2.07	3.52

¹ a t-test value above 1.96 or below 1.96 means that the position of the category of illustrative variable on the axis is significantly different from zero

² AMEn: metabolisable energy corrected to zero nitrogen balance; CDUDM, CDUS, CDUL, CDUP: coefficients of fecal digestive use of dry matter, starch, lipids and proteins.

³ Low, Medium, High: each category includes one third of individual values