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Table 2 Daily intake of components and the minerals of dairy cows, by lactation state

From: Mineral status and enteric methane production in dairy cows during different stages of lactation

 

Lactation stage1

Item

Early

Middle

Late

Daily intake2, kg/day

 DM

29.8

25.7

22.2

 OM

27.1

23.6

20.2

 Ash

2.6

2.2

1.9

 CP

5.3

4.8

4.2

 EE

1.5

1.1

0.9

 CF

4.8

4.6

4.4

 aNDF

10.2

9.5

8.7

 ADF

6.2

5.9

5.6

Macro mineral intake, g/day

 Ca

241

183

157

 Na

143

116

104

 K

339

316

299

 Mg

98.2

79.7

64.3

Micro mineral intake, mg/day

 Fe

8.53

8.41

8.31

 Mn

1.85

1.63

1.42

 Zn

2.24

1.97

1.71

 Cu

0.86

0.75

0.64

  1. 1Early = early-stage lactation (1–100 days); Middle = middle-stage lactation (101–250 days); Late = late-stage lactation (> 250 days)
  2. 2DM = dry matter; OM = organic matter; CP = crude protein; EE = ether extract; CF = crude fiber; aNDF = neutral detergent fiber; ADF = acid detergent fiber
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BMC Veterinary Research

ISSN: 1746-6148

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