Table 5.

Effect of dietary ingredient and soluble NSP level on short chain fatty acid profiles in the caeca at day 14 (µmol/g fresh sample).

Treatment		Formic	Acetic	Propionic	Isobutyric	Butyric	Isovaleric	Valeric	Lactic	Succinic	Total
Grain	sNSP level
Corn	High	0183	113.1ab	6.00	0.621	26.72	5.73	0.588	1.425	17.87	172.3ab
	Medium	0.672	109.3ab	6.48	0.845	27.22	6.78	0.730	1.916	14.41	168.3ab
	Low	0.80	102.8b	6.57	0.87	25.31	5.84	0.878	1.419	16.88	161.4ab
Wheat	High	0.382	100.6b	3.92	0.400	22.15	4.82	0.331	1.313	19.05	153.0b
	Medium	0.086	107.1ab	5.08	0.566	24.71	5.96	0.383	1.678	27.94	173.5ab
	Low	0.61	130.6b	7.22	0.867	26.37	6.52	0.77	1.883	18.41	193.3a
SEM1		0.418	6.64	0.77	0.123	0.186	1.371	0.132	0.307	3.67	9.51
Grain
Corn		0.551	108.4	6.35	0.778	26.42	6.12	0.732a	1.587	16.39b	167.3
Wheat		0.359	112.8	5.41	0.611	24.41	5.77	0.494b	1.625	21.80a	173.3
sNSP level
High		0.283	106.9	4.96b	0.510b	24.44	5.28	0.459b	1.369	18.46	162.6
Medium		0.379	108.2	5.78ab	0.705ab	25.97	6.36	0.556ab	1.797	21.17	170.9
Low		0.705	116.7	6.89a	0.868a	25.84	6.18	0.824a	1.651	17.65	177.3
P-value
Grain		0.538	0.381	0.115	0.063	0.138	0.695	0.019	0.789	0.041	0.401
sNSP level		0.511	0.220	0.035	0.007	0.584	0.740	0.011	0.381	0.507	0.237
sNSP level linear		-	-	0.014	0.927	-	-	0.630	-	-	-
sNSP level quadratic		-	-	0.086	0.744	-	-	0.444	-	-	-
Grain × sNSP level		0.589	0.005	0.155	0.405	0.225	0.861	0.601	0.596	0.094	0.017

^a-bMeans within a main effect or interaction not sharing a common letter are different (P ≤ 0.05).

¹Pooled standard error of mean.