Merck Manual

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Recommended Minimum NDF Concentrations Based on Proportion of NDF Coming from Forage Sources a

Recommended Minimum NDF Concentrations Based on Proportion of NDF Coming from Forage Sources a

NDF from Forage (% of Dietary Dry Matter)

NDF from Forage (% of NDF)

Minimum Total NDF (% of Dietary Dry Matter)

19

75

25

18

66

27

17

58

29

a Reprinted with permission from the National Academies Press, copyright 2001, National Academy of Sciences. As the proportion of neutral detergent fiber (NDF) from forage sources decreases, the minimum requirement for total NDF increases. These represent minimum requirements; diets with higher NDF concentrations present no problem and are generally appropriate for animals with relatively low energy requirements.