. 2017 May 15;7:1894. doi: 10.1038/s41598-017-02026-2

Table 4.

Area under the curve (AUC) of footpad lesion scores in broilers fed three supplemental trace mineral levels during d 7 to 21, d 21 to 42, and d 7 to 42 of age.

Item	Treatment			SEM	P-value
Item	NTM	LTM	HTM	SEM	P-value
AUC d7–21	21.99^a	21.43^a	15.14^b	1.97	0.036
AUC d21–42	55.15^a	43.22^b	42.98^b	4.37	0.043
AUC d7–42	76.31	64.70	66.45	4.70	0.074

^a,bMeans within a row with different superscripts differ at P < 0.05.

Reported standard error of the mean (SEM) is the average SEM of the individual least-square means.