Table 3.

Fermentation variables: SCFAs, pH of cecal contents and GLP-1 active in serum¹

Variable	Diet	OP	OR	P value (Phenotype)	P value (Diet)	P value (Phenotype*Diet)	Pooled SEM
Acetate (mmol/cecum)	LF-LF	0.081	0.045	<0.0001	<0.0001	<0.0001	0.007
	HF-HF	0.056	0.038
	HF-LF	0.061	0.032
	HF-LFRS	0.401	0.095
Propionate (mmol/cecum)	LF-LF	0.015	0.009	<0.001	<0.001	<0.0001	0.001
	HF-HF	0.010	0.006
	HF-LF	0.030	0.004
	HF-LFRS	0.049	0.008
Butyrate (mmol/cecum)	LF-LF	0.020	0.010	<0.001	<0.001	<0.0001	0.0017
	HF-HF	0.014	0.008
	HF-LF	0.016	0.007
	HF-LFRS	0.127	0.022
pH	LF-LF	7.46	7.62	<0.001	<0.001	<0.0001	0.973
	HF-HF	7.56	7.57
	HF-LF	7.56	7.30
	HF-LFRS	5.62	6.90
GLP-1 (pmol/L)	LF-LF	0.97	0.89	0.20	0.0083	0.839	0.073
	HF-HF	1.15	1.13
	HF-LF	0.88	0.99
	HF-LFRS	1.66	1.06

¹For all Table 2 variables there were differences (P<0.0125) for four a priori comparisons (OPHF-LFRS vs. OPLF-LF, OPHF-LFRS vs. OPHF-LF, OPHF-LFRS vs. ORHF-LFRS and ORHF-LFRS vs. ORHF-LF).