Item

Control

Experiment

SEM

P-value

DMI (kg/d)

19.65

21.79

0.26

<0.01

Milk yield (kg/d)

33.21

36.61

1.37

0.06

Milk fat rate (%)

3.37

3.39

0.25

0.97

Milk fat yield (kg/d)

1.13

1.20

0.03

0.28

Milk protein rate (%)

3.37

3.28

0.06

0.32

Milk protein yield (kg/d)

1.10

1.23

0.07

0.34

Lactose rate (%)

4.69

4.88

0.03

<0.01

Somatic cell count (ten thousand/ml)

20.51

15.1

6.93

0.53