Skip to main content

United States-Canadian Tables of Feed Composition Nutritional Data for United States and Canadian Feeds, Third Revision (1982) / Chapter Skim
Currently Skimming:

Analytical and Biological Data
Pages 3-6

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 3...
... DRY MATTER Typical dry matter values are shown; however, the moisture content of feeds varies greatly and the dry matter content may be the main reason for variation in the composition of foodstuffs on an "as-fed" basis. Because dry matter can vary greatly and because one of the factors regulating total feed intake is the dry matter content of feeds, diet formulation on a dry matter basis is preferred over using the as-fed basis.
Read the entire page →
From page 4...
... PROTEIN Crude Protein The crude protein value shown in these tables is the nitrogen value times 100/16 or 6.25, because protein on the average contains 16 percent nitrogen. To determine the apparent protein content of a given feed more accurately, conversion factors for that feed can be used; however, these factors have been determined for only a few feeds Jones, 1941~.
Read the entire page →
From page 5...
... The digestible protein content for the total diet can be more accurately calculated from the crude protein content of the diet using the equations of Knight and Harris (1966~. PLANT CELL WALL CONSTITUENTS INCLUDING CRUDE FIBER Total insoluble dietary fiber is represented by cellulose, hemicellulose, and lignin.
Read the entire page →
From page 6...
... Corn oil and cottonseed oil are approximately 50 percent linoleic acid; safflower oil is 75 percent linoleic acid. Yellow corn is the major source of linoleic acid in many feed formulas.
Read the entire page →

Key Terms

  • dry matter
  • metabolizable energy
  • energy values
  • crude protein
  • digestible energy

  • total digestible
  • digestible protein
  • net energy
  • linoleic acid
  • ether extract

  • digestible nutrients
  • acid detergent
  • detergent fiber
  • plant cell
  • protein content

  • digestible crude
  • energy digestible
  • energy metabolizable
  • digestible ether
  • gross energy

  • total feed
  • true metabolizable
  • protein value
  • apparent protein
  • percent linoleic

  • nutrients total
  • matter values
  • matter content
  • fatty acid
  • true lignin


    • This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
    More information on Chapter Skim is available.