Group

Intercept

Slope yield

P Level

Slope DIM

P Level

R2

All cows

0.351

0.788

<0.001

−0.0004

<0.001

0.596

First lactation

0.326

0.752

<0.001

−0.00015

<0.001

0.496

Mature cows

0.402

0.772

<0.001

−0.0005

<0.001

0.594