. 2021 May 25;11(6):1546. doi: 10.3390/ani11061546

Table 5.

Least Squares Means (LSM) their standard errors (SE) and significant differences between the effect levels for the bone mineral density (BMD) of the keel bone.

Effect	BMD (g/cm²)	Effect		BMD (g/cm²)
Effect	LSM ± SE	Effect		LSM ± SE
Generation		Layer line × Housing System
1st Generation	0.180 ^A ± 0.005	BLA	Floor housing	0.196 ^AB ± 0.009
2nd Generation	1.154 ^B ± 0.005	BLA	Cages	0.163 ^CD ± 0.005
Layer Line		L68	Floor housing	0.209 ^A ± 0.011
BLA	0.179 ^A ± 0.006	L68	Cages	0.159 ^BCD ± 0.008
L68	0.184 ^A ± 0.009	WLA	Floor housing	0.159 ^CD ± 0.007
WLA	0.140 ^B ± 0.005	WLA	Cages	0.121 ^E ± 0.004
R11	0.165 ^A ± 0.007	R11	Floor housing	0.184 ^ABC ± 0.009
Housing System		R11	Cages	0.147 ^D ± 0.006
Floor housing	0.187 ^A ± 0.007	Housing System × KBD
Cages	0.147 ^B ± 0.003	Floor housing	Score 2	0.187 ^AB ± 0.007
Keel Bone Deformities (KBD)			Score 3	0.196 ^A ± 0.003
Score 2	0.167 ^B ± 0.004		Score 4	0.195 ^A ± 0.002
Score 3	0.177 ^A ± 0.003	Cages	Score 2	0.147 ^D ± 0.003
Score 4	0.183 ^A ± 0.003		Score 3	0.159 ^C ± 0.003
Keel Bone Fractures (KBF)			Score 4	0.171 ^B ± 0.003
Score 0	0.167 ^A ± 0.004
Score 1	0.167 ^A ± 0.003

^A–E Means within a column and effect with no common superscript differ significantly at p < 0.05.