Lactating Holstein Cow Rations for Drought

Ed Rayburn
Extension Forage Agronomist
WVU Extension Service
7/99

The following three rations were developed by Bill Hoover, WVU Agriculture Nutrition Specialist, to show how by-product feeds can be used on dairy farms to substitute for forage, which is in short supply. These types of rations have been used by Dr. Hoover at Morgantown and provided the indicated results with the University's dairy herd. If you have different by-products available or have specific questions contact Dr. Hoover (304-293-2631) for more detailed help.

The type of cow used for all three of these rations was:

Lactating Holstein cow
Age: 42 months Lactation #: 3
Body wt: 1425 lbs Avg gain: 0.8 lbs/day
Milk prod: 80 lbs/day DIM: 120 days
Milk Fat: 3.5% Milk Protein: 3.3%
Condition Score: 2.6  

Ration 1

Mix – Feed

AsFed

LbsDM

DM

NE1

CP

WHEAT STRAW

3.25

3.00

92.2

0.44

3.5

Grass hay, mature

3.37

3.00

89.0

0.52

7.0

BEET PULP

7.74

7.00

90.4

0.81

9.8

SOY HULLS

6.68

6.00

89.8

0.80

13.7

WHEAT MIDDS

7.92

7.00

88.4

0.71

19.0

Cottonseed w lint

4.35

4.00

92.0

1.01

23.0

CORN GROUND

16.84

15.00

89.1

0.90

9.9

SBM 44%

6.71

6.00

89.4

0.88

48.2

Limestone

0.51

0.50

99.0

0.00

0.0

Ca 23% : P 18%

0.10

0.10

97.0

0.00

0.0

This ration provides:

Nutrient (unit)

Total

Reqt

CP (%DM)

16.38

16.13

UndegP (%CP)

34.60

28.14

DegP (%CP)

65.40

64.76

NE1 (Mcal/lb)

0.80

0.72

ADF (%DM)

21.02

16.00*

NDF (%DM)

37.48

29.00

EfNDF (%NDF)

45.39

80.00

Ration 2

Mix – Feed

AsFed

LbsDM

DM

NE1

CP

Grass hay mature

3.37

3.00

89.0

0.52

7.0

CORN COBS

3.26

3.00

91.9

0.50

4.7

CORN GLUT FD

5.65

5.00

88.5

0.87

18.5

SOY HULLS

7.80

7.00

89.8

0.80

13.7

WHEAT MIDDS

9.05

8.00

88.4

0.71

19.0

Cottonseed w lint

4.35

4.00

92.0

1.01

23.0

CORN GROUND

16.84

15.00

89.1

0.90

9.9

SBM 44%

5.59

5.00

89.4

0.88

48.2

Limestone

0.71

0.70

99.0

0.00

0.0

This ration provides:

Nutrient (unit)

Total

Reqt

CP (%DM)

16.90

16.13

UndegP (%CP)

34.49

28.73

DegP (%CP)

65.51

62.27

NE1 (Mcal/lb)

0.80

0.72

ADF (%DM)

18.93

16.00*

NDF (%DM)

38.09

29.00

EfNDF (%NDF)

35.67

80.00

Ration 3

Mix – Feed

AsFed

LbsDM

DM

NE1

CP

DRIED BREWERS

5.43

5.00

92.0

0.68

34.5

CORN GLUT FD

3.39

3.00

88.5

0.87

18.5

Barley malt sprts

7.78

7.00

90.0

0.74

19.0

Cottonseed w lint

5.43

5.00

92.0

1.01

23.0

CORN GROUND

16.84

15.00

89.1

0.90

9.9

SBM 44%

1.12

1.00

89.4

0.88

48.2

Limestone

1.01

1.00

99.0

0.00

0.0

Stover

7.06

6.00

85.0

1.23

5.9

This ration provides:

Nutrient (unit)

Total

Reqt

CP (%DM)

16.86

16.13

UndegP (%CP)

36.46

30.48

DegP (%CP)

59.42

67.27

NE1 (Mcal/lb)

0.86

0.72

ADF (%DM)

16.81

16.00*

NDF (%DM)

37.72

29.00

EfNDF (%NDF)

22.63

80.00