Table 5 Values for plasma homocysteine concentration at 48 and 70 weeks of age, production data, radiographic density, mechanical and physicochemical bone properties measured at 70 weeks of age between CBS genotype Ost106225194/Ost112522587 (AA/AA vs. GG/GG) in Population 5

Radiographic, mechanical, metabolite and production data

 Body weight

Body weight (g)

0.291

1,64

 Egg traits

Egg number

0.574

1,64

Egg breaking strength (48 wk of age)

0.508

1,61

 Plasma homocysteine

Homocysteine 48 wk of age (µM/L)

0.024

1,52

Homocysteine 70 wk of age (µM/L)

0.016

1,64

Detailed morphometry and physicochemical analysis

 Bone type

  Whole tibia

Breaking strength (N)

228.1

6.6

228.2

9.0

0.998

1,36

  Whole tibia

Stiffness (Nm)

316,939

8456

322,940

9526

0.64

1,36

  Whole tibia

Density (mm Al equiv/mm³)

1.60

0.01

1.61

0.01

0.412

1,36

% cortical bone

56.84

2.33

50.84

2.30

0.075

1,36

 Tibia cortical

  Tibia cortical

Density (mmAl equiv/mm³)

0.018

0.001

0.022

0.001

0.024

1,36

  Tibia cortical

MinCO3 1415

0.209

0.003

0.170

0.003

< 0.001

1,36

  Tibia cortical

CI 1030/1020

0.584

0.004

0.633

0.007

< 0.001

1,36

  Tibia cortical

PO₄/Amide I

3.97

0.11

6.40

0.12

< 0.001

1,36

  Tibia cortical

LNK 1660/1690

2.54

0.12

4.17

0.19

< 0.001

1,36

  Tibia cortical

AngSpread 002

54.9

0.91

49.4

0.66

0.004

1,35

  Tibia cortical

FWHM002

0.45

0.01

0.46

0.017

0.842

1,36

  Tibia medullary

Density (mmAl equiv/mm³)

0.025

0.003

0.024

0.002

0.743

1,36

  Tibia medullary

MinCO3 1415

0.18

0.03

0.16

0.02

0.576

1,36

  Tibia medullary

CI 1030/1020

0.77

0.022

0.73

0.02

0.149

1,36

  Tibia medullary

PO₄/Amide I

1.17

0.09

1.25

0.10

0.585

1,36

  Tibia medullary

LNK 1660/1690

3.20

0.09

3.20

0.07

0.998

1,36

  Tibia medullary

FWHM002

0.58

0.03

0.56

0.02

0.425

1,35