Table 4 Foot and tibia ash % content, and tibia silicon contents (mg/kg tibia ash weight) of broiler chicks fed diets containing varying levels of novel silicon supplement (MONO-Si) up to day 42 during Trial 2 (n = 6 pens per treatment).

	Dietary Silica (MONO-Si) content mg/kg				SEM²	p value
	0	250	500	1000	SEM²	p value
D14 Foot ash (%)	14.7^c1	16.3^ab	15.6^bc	16.9^a	0.31	<0.001
D14 Tibia ash (%)	46.1^b	48.9^ab	50.4^ab	51.9^a	1.14	0.035
D42 Foot ash (%)	15.1	14.7	15.6	15.2	0.37	0.368
D42 Tibia ash (%)	44.2^ab	45.0^ab	46.2^a	43.5^b	0.60	0.031
D21 Tibia Si (mg/kg)	20.0^b	21.0^ab	22.4^a	22.4^a	0.47	0.003
D28 Tibia Si (mg/kg)	18.1^b	19.0^ab	20.0^ab	20.1^a	0.45	0.02
D35 Tibia Si (mg/kg)	21.9	22.7	23.6	23.9	0.71	0.235
D42 Tibia Si (mg/kg)	18.4	18.6	20.3	20.0	0.69	0.153

Differing superscript letters within a row denote means are significantly different at P < 0.05. SEM refers to standard error of mean.

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