Table 5. Effect of dietary treatments on cecal short-chain fatty acid (SCFA; mg/g) of male broiler chicks

Item	Dietary treatments (TRT)¹⁾						SEM	p-value
Item	T1	T2	T3	T4	T5	T6	SEM	TRT	L	Q
Lactate	60.1^b	106.8^a	92.1^a	40.3^b	135.8^a	138.3^a	6.70	< .0001	< .0001	0.154
Format	0.29^b	0.81^a	0.55^b	0.28^b	0.84^a	2.22^a	0.09	< .0001	< .0001	0.004
Acetate	41.9^b	67.6^a	62.0^a	40.3^b	71.4^a	74.6^a	4.04	< .0001	< .0001	0.609
Propionate	0.92^b	7.4^a	6.3^a	2.2^a	1.3^b	3.6^a	0.25	< .0001	< .0001	0.088
Butyrate	2.95^b	3.9^a	4.7^a	2.4^b	4.7^a	4.7^a	0.21	< .0001	0.002	0.764
Total SCFA	106.2^b	186.5^a	165.7^a	85.5^b	214.2^a	223.4^a	8.37	< .0001	< .0001	0.274

Dietary treatments from T1 to T6 supplemented by 0.0%, 0.12%, 0.25%, 0.50%, 0.75%, and 1.0% of gum Arabic, respectively.
Means that do not share a common superscripted with control treatment (T1) within a row for each parameter has a significant effect, as determined by the Dunnett test (p < 0.05).
SEM, standard error of means for diet effect; TRT, dietary treatments effect; L, linear response; Q, quadratic response.