Table 1.

The effect of SB inclusion in milk replacer on Short Chain Fatty Acid (SCFA) profiles in the rumen and colon.

SCFA Profiles
	Rumen			Colon
Item	CON	SB	P-value	CON	SB	P-value
Total SCFA Concentrations (mmol/L)
Acetate	90.56 ± 7.51a	78.46 ± 1.93	NS b	39.48 ± 3.49	60.84 ± 6.03	0.01
Propionate	62.43 ± 7.51	58.26 ± 1.73	NS	10.77 ± 1.20	17.06 ± 2.00	0.02
Butyrate	16.21 ± 1.17	11.49 ± 0.57	0.04	3.56 ± 0.40	5.01 ± 0.84	NS
Isobutyrate	0.71 ± 0.37	0.33 ± 0.06	NS	0.53 ± 0.05	0.50 ± 0.09	NS
Valerate	4.91 ± 0.61	3.43 ± 0.09	NS	0.75 ± 0.13	0.85 ± 0.09	NS
Isovalerate	1.79 ± 0.28	1.05 ± 0.08	NS	0.37 ± 0.06	0.31 ± 0.06	NS
Total VFA	176.44 ± 16.02	152.82 ± 3.67	NS	55.46 ± 4.87	84.57 ± 8.60	0.02
Molar Proportions of SCFA
Acetate	0.517 ± 0.01	0.513 ± 0.003	NS	0.712 ± 0.01	0.721 ± 0.01	NS
Propionate	0.346 ± 0.01	0.379 ± 0.004	NS	0.192 ± 0.01	0.200 ± 0.01	NS
Butyrate	0.094 ± 0.004	0.077 ± 0.004	NS	0.064 ± 0.003	0.057 ± 0.01	NS
Isobutyrate	0.003 ± 0.002	0.001 ± 0.001	NS	0.010 ± 0.001	0.007 ± 0.001	NS
Valerate	0.028 ± 0.003	0.023 ± 0.001	NS	0.014 ± 0.001	0.010 ± 0.001	NS
Isovalerate	0.011 ± 0.002	0.007 ± 0.001	NS	0.007 ± 0.001	0.004 ± 0.001	NS

P-values were obtained using a Monte-Carlo permutational t-test in R.

^aMean ± SEM. ^bNot significant.