Parameter

Treatments¹

SEM

P-value

T0

T1

T2

T3

Trat²

Linear³

Quadratic³

Milk, kg・d⁻¹

34.2^a

32.1^b

28.4^c

26.8^d

0.30

0.01

0.01

0.10

ECM, kg・d⁻¹

34.3^a

31.8^b

27.9^c

26.6^d

0.33

0.01

0.01

0.10

Fat, kg・d⁻¹

1.35^a

1.25^a

1.10^b

1.04^b

0.03

0.01

0.01

0.62

Fat, %

3.92

3.90

3.91

3.80

0.07

0.62

0.27

0.50

Protein, kg・d⁻¹

1.18^a

1.11^a

0.96^b

0.92^b

0.02

0.01

0.01

0.55

Protein, %

3.44

3.48

3.39

3.43

0.05

0.69

0.67

0.99

Lactose, %

5.05^a

5.04^a

4.99^ab

4.89^b

0.04

0.02

0.01

0.24

TS, %

13.14

13.15

13.00

12.88

0.10

0.21

0.05

0.49

SNF, %

9.24^ab

9.28^a

9.09^bc

9.07^c

0.06

0.03

0.01

0.52

Urea, %

0.034^b

0.038^a

0.034^b

0.035^ab

0.001

0.,01

0.96

0.17

Casein, %

2.63^ab

2.65^a

2.58^ab

2.57^b

0.02

0.02

0.01

0.44