TABLE 20-20, Model Input Variance for a Specified Level of Productiona - Nutrient Requirements of Dairy Cattle

Group Size	Milk
	kg/d	% DM
1	0.18	9.27	3.92	12.99	3.83	1.33	2.92	0.41	1.25
4	0.18	9.19	3.84	12.83	3.81	1.32	2.92	0.40	1.24
8	0.18	8.91	3.75	12.40	3.71	1.29	2.84	0.39	1.19
16	0.17	8.48	3.63	11.84	3.59	1.25	2.75	0.38	1.16
32	0.17	8.20	3.57	11.54	3.57	1.24	2.75	0.37	1.13
64	0.16	8.27	3.42	11.45	3.51	1.22	2.72	0.38	1.12
128	0.16	7.43	3.30	9.75	3.10	1.07	2.44	0.32	1.02
256	0.15	7.07	3.37	9.09	3.00	1.03	2.37	0.32	1.06
	Milk Protein
Dt_DMIn	Dt_NDF	Dt_DEIn	Abs_His	Abs_Ile	Abs_Leu	Abs_Lys	Abs_Met	Abs_Thr
	kg/d	% DM	Mcal/d	g/d
1	0.19	9.10	3.78	10.35	21.37	33.24	29.55	8.97	18.65
4	0.18	9.05	3.76	10.37	21.29	33.21	29.45	8.93	18.58
8	0.18	8.82	3.64	10.31	21.11	32.75	29.19	8.74	18.41
16	0.18	8.68	3.55	9.93	20.77	31.88	28.57	7.97	18.03
32	0.17	8.22	3.44	9.46	20.04	30.37	27.27	7.56	17.33
64	0.17	8.12	3.26	9.13	19.22	29.29	26.38	7.18	16.73
128	0.16	7.91	3.19	8.87	19.00	28.56	25.60	7.09	16.31
256	0.15	7.46	3.18	8.52	17.94	26.58	24.18	6.56	15.30
	Milk Fat
Dt_DMIn	Dt_NDF	Dt_FA	Dt_C16	Dt_C18.0	Dt_C18.1t	Dt_C18.1c	Dt_C18.2	Dt_C18.3
	kg/d	% DM
1	0.18	9.28	1.26	0.306	0.107	0.022	0.45	0.47	0.16
4	0.18	9.19	1.26	0.306	0.107	0.022	0.45	0.47	0.16
8	0.18	9.13	1.26	0.306	0.106	0.021	0.45	0.47	0.16
16	0.18	8.89	1.20	0.290	0.100	0.020	0.43	0.45	0.15
32	0.17	8.67	1.17	0.282	0.098	0.019	0.41	0.44	0.15
64	0.17	8.36	1.10	0.264	0.095	0.018	0.39	0.42	0.14
128	0.16	8.06	1.09	0.254	0.094	0.018	0.39	0.41	0.14
256	0.15	7.96	1.11	0.275	0.106	0.019	0.39	0.40	0.13

Group Size

Milk

Dt_DMIn

Dt_NDF

Dt_DEIn

Dt_St

Dt_CP

Dt_CPA

Dt_CPB

Dt_CPC

Dt_FA

kg/d

% DM

0.18

9.27

3.92

12.99

3.83

1.33

2.92

0.41

1.25

0.18

9.19

3.84

12.83

3.81

1.32

2.92

0.40

1.24

0.18

8.91

3.75

12.40

3.71

1.29

2.84

0.39

1.19

0.17

8.48

3.63

11.84

3.59

1.25

2.75

0.38

1.16

0.17

8.20

3.57

11.54

3.57

1.24

2.75

0.37

1.13

0.16

8.27

3.42

11.45

3.51

1.22

2.72

0.38

1.12

128

0.16

7.43

3.30

9.75

3.10

1.07

2.44

0.32

1.02

256

0.15

7.07

3.37

9.09

3.00

1.03

2.37

0.32

1.06

Milk Protein

Dt_DMIn

Dt_NDF

Dt_DEIn

Abs_His

Abs_Ile

Abs_Leu

Abs_Lys

Abs_Met

Abs_Thr

kg/d

% DM

Mcal/d

g/d

0.19

9.10

3.78

10.35

21.37

33.24

29.55

8.97

18.65

0.18

9.05

3.76

10.37

21.29

33.21

29.45

8.93

18.58

0.18

8.82

3.64

10.31

21.11

32.75

29.19

8.74

18.41

0.18

8.68

3.55

9.93

20.77

31.88

28.57

7.97

18.03

0.17

8.22

3.44

9.46

20.04

30.37

27.27

7.56

17.33

0.17

8.12

3.26

9.13

19.22

29.29

26.38

7.18

16.73

128

0.16

7.91

3.19

8.87

19.00

28.56

25.60

7.09

16.31

256

0.15

7.46

3.18

8.52

17.94

26.58

24.18

6.56

15.30

Milk Fat

Dt_DMIn

Dt_NDF

Dt_FA

Dt_C16

Dt_C18.0

Dt_C18.1t

Dt_C18.1c

Dt_C18.2

Dt_C18.3

kg/d

% DM

0.18

9.28

1.26

0.306

0.107

0.022

0.45

0.47

0.16

0.18

9.19

1.26

0.306

0.107

0.022

0.45

0.47

0.16

0.18

9.13

1.26

0.306

0.106

0.021

0.45

0.47

0.16

0.18

8.89

1.20

0.290

0.100

0.020

0.43

0.45

0.15

0.17

8.67

1.17

0.282

0.098

0.019

0.41

0.44

0.15

0.17

8.36

1.10

0.264

0.095

0.018

0.39

0.42

0.14

128

0.16

8.06

1.09

0.254

0.094

0.018

0.39

0.41

0.14

256

0.15

7.96

1.11

0.275

0.106

0.019

0.39

0.40

0.13

From: 20, Model Description and Evaluation

Cover of Nutrient Requirements of Dairy Cattle

Nutrient Requirements of Dairy Cattle: Eighth Revised Edition.

National Academies of Sciences, Engineering, and Medicine; Division on Earth and Life Studies; Board on Agriculture and Natural Resources; Committee on Nutrient Requirements of Dairy Cattle.

Washington (DC): National Academies Press (US); 2021 Aug 30.

NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.

TABLE 20-20Model Input Variance for a Specified Level of Productiona

TABLE 20-20Model Input Variance for a Specified Level of Production^a