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Table 1 Ingredients and nutritional composition of the conventional diet (CON) and the high-grain diet (HG)

From: Effects of high-grain diet feeding on fatty acid profiles in milk, blood, muscle, and adipose tissue, and transcriptional expression of lipid-related genes in muscle and adipose tissue of dairy cows

Item

Diet

CON

HG

Ingredient, % of DM

 Alfalfa hay

24.00

17.00

 Oaten hay

24.00

17.00

 Corn silage

12.00

6.00

 Corn grain

19.40

24.92

 Soybean

13.50

13.48

 Barley

—

12.00

 DDGS1

3.80

5.91

 CaCO3

0.80

1.48

 Ca(HCO3)2

1.10

0.92

 NaCl

0.40

0.37

 Premix2

1.00

0.92

Nutrient composition3

 DM, %

46.77

48.03

 CP, % of DM

16.16

16.12

 Crude fat, % of DM

3.05

3.05

 NDF, % of DM

36.14

29.92

 NFC4, % of DM

35.39

42.34

 Starch, % of DM

17.96

27.82

 Ash, % of DM

5.97

4.87

 Ca, % of DM

1.14

1.18

 P, % of DM

0.52

0.51

 NEL5, Mcal/kg of DM

1.57

1.64

 NFC/NDF

0.97

1.42

  1. 1Dried distillers grains with solubles
  2. 2Premix contained the following ingredients per kilogram of diet: vitamin A, 22.5 kIU; vitamin D3, 5.0 kIU; vitamin E, 37.5 IU; vitamin K3, 5.0 mg; Mn, 63.5 mg; Zn, 111.9 mg; Cu, 25.6 mg; and Fe, 159.3 mg
  3. 3DM dry matter, CP crude protein, NDF neutral detergent fiber, NFC non-fibrous carbohydrate, NE net energy
  4. 4Calculated as NFC = 100 − (%NDF + %CP + %ether extract + %ash). NDF was inclusive of residual ash
  5. 5Calculated based on Ministry of P. R. China recommendations [26]
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Journal of Animal Science and Biotechnology

ISSN: 2049-1891