. 2021 Apr 20;100(7):101188. doi: 10.1016/j.psj.2021.101188

Table 3.

Chemical profiles (LSM±SEM) of dust from commercial broiler flocks housed on various bedding materials. Dust samples were collected using settle plate method at end of batch (35−49 days of age).

	Chemical analysis (LSM±SEM) of dust samples from commercial broiler flocks raised on different bedding materials
Element	Wood shavings bedding (n = 7)	Sawdust bedding (n = 7)	Rice hulls bedding (n = 7)	Straw bedding (n = 7)	P value	Coefficient of variation (CV %)
C (%)	41.8 ± 0.6^ab	42.1 ± 0.6^a	39.2 ± 0.6^c	39.6 ± 0.6^bc	0.004	5
N (%)	9.1 ± 0.6^b	10.5 ± 0.6^b	13.7 ± 0.6^a	14.1 ± 0.6^a	<0.001	22
Al (µg/g)	2543 ± 535^a	729 ± 535^a	2146 ± 535^a	2096 ± 535^a	0.12	80
B (µg/g)	204 ± 44^a	15 ± 44^b	18 ± 44^b	16 ± 44^b	0.01	216
Ca (%)	1.2 ± 0.1^b	1.6 ± 0.1^a	1.7 ± 0.1^a	1.4 ± 0.1^ab	0.004	20
Co (µg/g)	1.0 ± 0.2^a	0.3 ± 0.2^b	0.9 ± 0.2^a	0.3 ± 0.2^b	0.01	92
Cr (µg/g)	11 ± 4^a	11 ± 4^a	1 ± 4^a	2 ± 4^a	0.25	189
Cu (µg/g)	209 ± 28^a	163 ± 28^ab	26 ± 28^c	68 ± 28^bc	<0.001	88
Fe (µg/g)	1580 ± 484^a	2041 ± 484^a	1168 ± 484^a	1476 ± 484^a	0.65	80
K (%)	1.9 ± 0.1^b	1.7 ± 0.1^b	2.7 ± 0.1^a	2.4 ± 0.1^a	<0.001	22
Mg (%)	0.6 ± 0.1^b	0.6 ± 0.1^b	0.7 ± 0.1^ab	0.8 ± 0.1^a	0.02	25
Mn (µg/g)	306 ± 39^a	297 ± 39^a	340 ± 39^a	361 ± 39^a	0.63	31
Mo (µg/g)	0.3 ± 0.4^b	0.2 ± 0.4^b	3.0 ± 0.4^a	0.4 ± 0.4^b	<0.001	154
Na (µg/g)	3808 ± 268^b	3662 ± 268^b	4336 ± 268^ab	4979 ± 268^a	0.008	20
P (%)	0.8 ± 0.1^a	1.1 ± 0.1^a	1.2 ± 0.1^a	1.0 ± 0.1^a	0.16	29
S (%)	0.5 ± 0.1^c	0.6 ± 0.1^bc	0.8 ± 0.1^ab	0.8 ± 0.1^a	<0.001	25
Se (µg/g)	1.1 ± 0.4^a	1.2 ± 0.4^a	1.6 ± 0.4^a	1.4 ± 0.4^a	0.72	71
Zn (µg/g)	278 ± 1318^a	790 ± 1318^a	312 ± 1318^a	3837 ± 1318^a	0.20	277

Means within rows that do not share a common letter in the superscript differ significantly (P < 0.05).

P-values shown in bold font indicate a significant difference between high (bold) and low (underlined) group means.