Table 5.

Content of muscles and fat in broiler chicken carcass

Item	Group1					SEM	Significance
n = 10	1	2	3	4	5
Weight and proportion in carcass
Breast muscles (g)	512.89b	783.22a	771.18a	743.38a	725.59a	16.64	< 0.05
	± 67.91	± 34.54	± 58.76	± 64.97	± 84.72
Breast muscles (%)	29.52b	32.78a	32.92a	30.73ab	30.76ab	0.32	< 0.05
	± 2.01	± 1.21	± 1.37	± 1.74	± 2.84
Leg muscles (g)	374.08b	491.91a	489.65a	508.96a	521.55a	10.11	< 0.05
	± 50.09	± 30.19	± 73.53	± 43.75	± 39.07
Leg muscles (%)	21.56	20.61	20.80	21.08	22.16	0.25	NS
	± 1.90	± 1.56	± 1.74	± 1.78	± 1.62
Total muscles (g)	886.97b	1275.13a	1260.83a	1252.34a	1247.14a	25.06	< 0.05
	± 105.87	± 47.13	± 121.99	± 94.07	± 101.87
Total muscles (%)	51.08	53.40	53.72	51.81	52.92	0.37	NS
	± 2.63	± 2.23	± 1.50	± 2.77	± 3.18
Skin with subcutaneous fat (g)	163.78b	199.92a	196.32a	191.27ab	205.85a	4.06	< 0.05
	± 20.31	± 19.52	± 27.14	± 17.86	± 26.34
Skin with subcutaneous fat (%)	9.43a	8.36ab	8.41ab	7.92b	8.73ab	0.14	< 0.05
	± 0.60	± 0.67	± 1.29	± 0.71	± 0.94
Abdominal fat (g)	20.58	23.56	22.22	25.30	22.92	1.25	NS
	± 6.30	± 11.53	± 6.33	± 7.72	± 11.70
Abdominal fat (%)	1.17	0.98	0.95	1.04	0.98	0.05	NS
	± 0.31	± 0.46	± 0.26	± 0.29	± 0.50
Total fat (g)	184.36b	223.48a	218.54ab	216.57ab	228.77a	4.07	< 0.05
	± 25.10	± 22.80	± 24.26	± 23.72	± 29.24
Total fat (%)	10.60a	9.34ab	9.35ab	8.96b	9.71ab	0.15	< 0.05
	± 0.73	± 0.72	± 1.14	± 0.89	± 1.11

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%)