Table 4. Effect of dietary treatments on general growth performance of male broiler chicks

Parameters	Dietary treatments (TRT)¹⁾						SEM	p-value
Parameters	T1	T2	T3	T4	T5	T6	SEM	TRT	L	Q
Daily weight gain (g)
1–5 d	13.13^b	14.24^a	13.51^b	13.84^b	13.63^b	13.58^b	0.28	0.150	0.098	0.242
6–10 d	29.80^b	32.03^a	30.86^b	31.67^b	30.29^b	28.80^b	0.61	0.004	0.246	0.004
11–17 d	50.69^b	57.01^a	55.93^a	56.58^a	59.23^a	54.88^a	1.13	0.001	< .0001	0.001
18–24 d	76.24	78.82	79.17	78.35	73.01	75.23	2.04	0.263	0.764	0.206
Daily feed intake (g)
1–5 d	13.30^a	11.84^b	12.08^b	12.63^a	12.58^b	12.75^a	0.19	< .0001	0.002	0.001
6–10 d	38.76^a	37.12^a	37.02^a	38.63^a	37.20^a	36.61^b	0.52	0.016	0.048	0.991
11–17 d	75.04^a	69.16^b	68.12^b	71.81^a	70.84^a	67.94^b	1.19	0.006	0.002	0.230
18–24 d	105.45^a	98.84^b	102.80^a	102.72^a	105.14^a	106.59^a	1.39	0.003	0.199	0.022
Feed conversion ratio (g/g)
1–5 d	1.02^a	0.83^b	0.89^b	0.92^b	0.93^b	0.94^b	0.02	< .0001	< .0001	0.002
6–10 d	1.31^a	1.16^b	1.20^b	1.22^b	1.23^a	1.27^a	0.02	< .0001	0.004	0.002
11–17 d	1.48^a	1.21^b	1.22^b	1.27^b	1.20^b	1.24^b	0.02	< .0001	< .0001	< .0001
18–24 d	1.39^a	1.26^b	1.30^b	1.33^a	1.46^a	1.42^a	0.03	0.001	0.349	0.020
Production efficiency index
1–5 d	217.5^b	277.4^a	250.2^a	248.4^a	243.0^a	238.5^b	6.43	<.0001	0.001	0.003
6–10 d	199.5^b	237.9^a	221.7^a	222.8^a	214.9^b	201.3^b	5.49	<.0001	0.003	0.003
11–17 d	250.5^b	331.1^a	322.2^a	312.3^a	339.9^a	310.6^a	8.54	<.0001	<.0001	< .0001
18–24 d	350.8^b	410.3^a	392.4^b	392.7^b	347.9^b	347.2^b	14.1	0.004	0.096	0.004

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.