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

Table 3.

Growth performance at 14, 28 and 42 d of age of broilers fed three supplemental trace mineral levels.

Item	BW (g)	cBWG (g)	cFI (g)	cFCR	cPI
Day 14
NTM	0.474^b	0.429^b	0.509^b	1.191	277.4^b
LTM	0.499^a	0.454^a	0.534^a	1.174	295.5^a
HTM	0.504^a	0.460^a	0.545^a	1.186	299.1^a
SEM	0.0107	0.0105	0.0067	0.018	14.5
P-value	0.0002	0.0002	0.0023	0.3197	0.0226
Day 28
NTM	1.768^b	1.724^b	2.308^b	1.339	457.8
LTM	1.814^ab	1.770^ab	2.325^b	1.313	484.8
HTM	1.859^a	1.814^a	2.399^a	1.323	469.2
SEM	0.0309	0.0308	0.0268	0.0094	13.1
P-value	0.0189	0.0191	0.028	0.0517	0.3196
Day 42
NTM	3.423	3.378	5.209	1.543^a	509.2
LTM	3.482	3.437	5.221	1.518^ab	527.2
HTM	3.577	3.533	5.312	1.505^b	529.0
SEM	0.0997	0.0995	0.1119	0.0151	18.9
P-value	0.1495	0.1488	0.6273	0.0221	0.3252

^a,bMeans within a column 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.