Measurement

Formula

R

R²

P value

Arabians

Height at withers

HW = 94.420 + (4.589 * Age)

0.904

0.818

<0.001

Heart girth

HG = 78.786 + (7.813 * Age)

0.935

0.875

<0.001

Cannon bone girth

CBG = 10.871 + (0.633 * Age)

0.868

0.754

<0.001

Campolina

Height at withers

HW = 91.152 + (5.032 * Age)

0.864

0.746

<0.001

Heart girth

HG = 78.936 + (7.378 * Age)

0.817

0.668

<0.001

Cannon bone girth

CGB = 11.913 + (0.571 * Age)

0.729

0.531

<0.001

Mangalarga Marchador

Height at withers

HW = 90.621 + (5.518 * Age)

0.918

0.842

<0.001

Heart girth

HG = 80.639 + (8.338 * Age)

0.915

0.837

<0.001

Cannon bone girth

CGB = 11.057 + (0.686 * Age)

0.837

0.701

<0.001

Quarter Horse

Height at withers

WH = 88.341 + (4.786 * Age)

0.815

0.664

<0.001

Heart girth

HG = 81.768 + (6.758 * Age)

0.822

0.675

<0.001

Cannon bone girth

CBG = 11.988 + (0.510 * Age)

0.780

0.608

<0.001