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7 Cards in this Set

  • Front
  • Back
Feeds are made up of the following components:
2.Ether Extract (EE)
3.Crude Protein (CP)
4.Crude Fiber (CF)
6.Nitrogen Free Extract (NFE)
Proximal Analysis
•Henneberg and Stohman
•Researchers at the Weende Ins, Germany
•Obtained by difference after DM analysis
•Dry at 105 oC to constant weight
• Use 60-70 oC for silages (volatiles)
•Contains the minerals
•Ignite sample in muffle furnace (600 oC) for 6-8 hrs
Ether Extract (EE)
•Represents the lipids (high energy)
•True fats and oils (tiglycerides), phospholipids, waces, sterols, pigments, cholesterol, etc.
•Extract sample in petroleum ether and then evaporate off the ether
•Residue remaining is the ether extract
•A (vision/ skin integrity), D, E (natures antioxidant) and K(blood clotting) fat soluble vitamins
Crude Fiber
•Structural carbohydrates (cell wals)
•Obtained by subjecting the sample to successive treatments with boiling acids and boiling bases
Crude Protein
•Nitrogen is stable in an acid environment
•CP Calculated from percent nitrogen in the sample
•Assumption: CP contains 16% N (100/16= 6.25)
•Therefore %CP= %N X 6.25
•Hence you can use: %CP/6.25=%N