. 2021 Sep 3;46(1):37–47. doi: 10.1007/s11259-021-09827-x

Table 3.

Growth performance of broiler chickens during the 42 days of rearing

Parameter	Group¹					SEM	Significance
N = 100	1	2	3	4	5	SEM	Significance
BW (g)
1-day old chicks	43.83	44.10	42.80	43.92	42.89	0.20	NS
1-day old chicks	± 1.24	± 1.60	± 1.60	± 1.31	± 0.98
day 10	379.44	387.56	387.56	381.85	381.85	2.07	NS
day 10	± 6.36	± 11.16	± 25.56	± 16.24	± 6.46
day 22	1213.84^b	1285.40^ab	1294.27^a	1289.96^a	1289.18^a	8.14	< 0.05
day 22	± 36.70	± 31.91	± 70.21	± 69.21	± 28.13
day 35	2095.00^b	2423.92^a	2472.66^a	2476.85^a	2471.70^a	27.60	< 0.05
day 35	± 128.74	± 69.54	± 136.96	± 190.18	± 101.11
day 42	2348.79^b	2867.59^a	2970.348^a	2993.83^a	2996.03^a	40.52	< 0.05
day 42	± 161.94	± 86.78	± 185.20	± 130.14	± 144.43
BWG (g)
days 1–10	335.61	343.46	339.05	338.30	338.96	2.01	NS
days 1–10	± 6.54	± 10.21	± 25.12	± 15.70	± 6.15
days 11–22	834.39^b	897.84^a	912.42^a	907.74^a	907.33^a	6.92	< 0.05
days 11–22	± 34.36	± 26.64	± 51.40	± 56.09	± 24.95
days 23–35	882.06^b	1138.39^a	1178.39^a	1186.90^a	1182.52^a	20.98	< 0.05
days 23–35	± 100.49	± 50.06	± 90.81	± 126.80	± 81.88
days 36–42	252.89^b	443.67^a	497.68^a	516.97^a	524.32^a	18.10	< 0.05
days 36–42	± 102.64	± 64.75	± 64.51	± 78.72	± 85.31
days 1–42	2304.96^b	2823.49^a	2927.55^a	2949.91^a	2953.14^a	40.52	< 0.05
days 1–42	± 162.03	± 86.10	± 184.42	± 130.01	± 145.87
FI (g; per bird)
days 1–10	343.35	353.76	370.51	361.43	335.32	4.09	NS
days 1–10	± 17.62	± 28.23	± 35.40	± 26.03	± 25.43
days 11–22	935.04^c	1006.87^b	1013.70^b	1010.94^b	1110.71^a	10.08	< 0.05
days 11–22	± 32.64	± 37.82	± 36.13	± 62.53	± 50.70
days 23–35	1605.53^c	1759.67^b	1813.40^ab	1864.13^ab	1892.82^a	18.95	< 0.05
days 23–35	± 111.60	± 71.44	± 91.90	± 80.23	± 89.78
days 36–42	508.33^b	810.73^a	800.16^a	873.67^a	860.60^a	20.89	< 0.05
days 36–42	± 68.15	± 66.06	± 40.94	± 46.24	± 77.47
days 1–42	3541.02^c	3938.02^b	4170.21^ab	4210.69^ab	4312.98^a	50.30	< 0.05
days 1–42	± 213.23	± 138.35	± 301.86	± 240.00	± 230.99
FCR (kg/kg)
days 1–10	1.03	1.03	1.10	1.07	0.99	0.01	NS
days 1–10	± 0.05	± 0.10	± 0.16	± 0.07	± 0.07
days 11–22	1.12^b	1.12^b	1.11^b	1.11^b	1.22^a	0.01	< 0.05
days 11–22	± 0.04	± 0.04	± 0.04	± 0.08	± 0.06
days 23–35	1.84^a	1.55^b	1.55^b	1.58^b	1.60^b	0.03	< 0.05
days 23–35	± 0.23	± 0.07	± 0.12	± 0.14	± 0.10
days 36–42	2.36	1.85	1.62	1.72	1.67	0.08	NS
days 36–42	± 1.16	± 0.23	± 0.15	± 0.29	± 0.24
days 1–42	1.54	1.39	1.42	1.43	1.46	0.02	NS
days 1–42	± 0.17	± 0.03	± 0.12	± 0.09	± 0.07

a,b…, means in the same line with no common superscript differ between groups (p < 0.05); NS, no significance; ± SD, standard deviation; SEM, standard error of the mean for all data; ¹, 1, no addition of aluminosilicates to feed or litter; 2, 0.800 kg/m² of halloysite in litter; 3, 0.400 kg/m² of halloysite and 0.400 kg/m² of zeolite in litter; 4, 0.800 kg/m² of zeolite in litter; 5, 0.200 kg/m² of halloysite and 0.600 kg/m² of zeolite in litter; groups 2–5, addition of halloysite and zeolite to feed (proportion 25:75; starter, 0.5%; grower 1, 1%; grower 2, 1.5%; finisher, 2%); ², BW, body weight, g; BWG, body weight gain, g; FI, feed intake, g; FCR, feed conversion ratio, kg/kg