Table 7. Concentration, profile and pool of SCFA¹ in the cecal and colonic digesta of chinchillas (mean ± SEM).

			Diet			P-value
			C	FM	MWM
Cecum
	SCFA concentrations [µmol/g digesta]
		acetic	22.0 ± 0.887	20.7 ± 2.707	20.2 ± 0.851	0.498
		propionic	4.02 ± 0.345	3.78 ± 0.301	3.57 ± 0.279	0.342
		iso-butyric	0.450 ± 0.040	0.466 ± 0.070	0.390 ± 0.019	0.304
		butyric	3.72 ± 0.325	3.38 ± 0.374	3.24 ± 0.281	0.342
		iso-valeric	0.406 ± 0.031	0.440 ± 0.087	0.275 ± 0.022	0.057
		valeric	0.341 ± 0.021a	0.343 ± 0.026a	0.274 ± 0.010b	0.031
		total putrefactive SCFA2	1.20 ± 0.088	1.25 ± 0.175	0.940 ± 0.043	0.089
		total SCFA	30.9 ± 1.464	29.1 ± 2.824	27.9 ± 1.172	0.324
	SCFA profile [µmol/100 µmol total SCFA]
		acetic	71.3 ± 0.893	69.6 ± 2.977	72.3 ± 1.079	0.348
		propionic	13.0 ± 0.741	13.3 ± 0.964	12.8 ± 0.906	0.678
		butyric	11.9 ± 0.567	12.4 ± 2.167	11.5 ± 0.616	0.651
	SCFA pool [µmol/kg BW]		1,123 ± 70.70a	868 ± 124.9	767 ± 44.46b	0.013
Ascending colon
	SCFA concentrations [µmol/g digesta]
		acetic	16.0 ± 0.649b	15.8 ± 0.830b	18.8 ± 0.590a	0.010
		propionic	2.73 ± 0.222	2.65 ± 0.247	3.00 ± 0.161	0.284
		iso-butyric	0.248 ± 0.054	0.273 ± 0.040	0.260 ± 0.026	0.696
		butyric	2.29 ± 0.163	2.56 ± 0.209	2.51 ± 0.194	0.366
		iso-valeric	0.233 ± 0.023	0.238 ± 0.038	0.184 ± 0.014	0.196
		valeric	0.248 ± 0.042	0.212 ± 0.030	0.210 ± 0.022	0.435
		total putrefactive SCFA	0.729 ± 0.063	0.723 ± 0.049	0.654 ± 0.021	0.303
		total SCFA	21.8 ± 0.832b	21.8 ± 0.698b	25.0 ± 0.788a	0.010
	SCFA profile [µmol/100 µmol total SCFA]
		acetic	73.7 ± 1.284	72.5 ± 1.949	75.3 ± 0.781	0.202
		propionic	12.5 ± 0.781	12.2 ± 1.159	12.0 ± 0.491	0.732
		butyric	10.5 ± 0.627	12.0 ± 1.324	10.0 ± 0.623	0.176

C, control; FM, fish meal; MWM, Mealworm larvae meal. ¹Short-chain fatty acids. ² Sum of iso-butyric, iso-valeric and valeric acids. ^a,bMean values within rows with no common superscripts are different at P<0.05.