Balancing Rations
Pearson Square

  • oldest and simplest method of balancing rations
  • can only be used to determine the proportions of two ingredients
  • frequently used for smaller herds and flocks

A List of the Protein Levels of Different Feeds

           FOOD SOURCE     %PROTEIN, BY WT


Dried fish flakes          76
Dried liver            76
Dried earthworms                76
Duckweed           50
Torula yeast                50
Brewers yeast             39
Soybeans (dry roasted)37
Flaxseed             37
Alfalfa seed         35
Beef, lean            28
Earthworms         28
Fish            28
Sunflower seeds  26.3
Wheat germ        25
Peas & Beans, dried   24.5
Sesame seed      19.3
Soybeans (boiled)        17
Wheat bran         16.6
Oats, whole        14
Rice polish         12.8
Rye            12.5
Wheat         12.5
Barley        12.3
Oats           12
Corn            9
Millet           9
Milo             9
Rice, brown         7.5


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This page was last updated on: November 26, 2007
DOWNLOAD Pearson Square 1.0 - Palm Pilot
Running the installation program located inside the zip file will place the software and the required support files in your Palm Desk synchronization conduit.

DOWNLOAD  Pearson Square 1.1 Calculator
The program is free and is provided as a compressed zip file. To obtain a copy of WinZip, they have an  icon to click on to get it also.

Pearson Square
Enter a value in the Percent 1, Percent 2, Goal Percent,
and Total Weight fields. Click the button labeled "Click to Compute".

Arithmetic and Minerals - Virginia Cooperative Extension

How To - Calculate Calcium and Phosphorus in Rations

Pearson Square/Steven H. Umberger, Extension Animal Scientist, Virginia Tech

Ration Balancing, by Hand or by Computer - Purdue University

Pearson Square - University of Kentucky College of Agriculture

Formulating Rations With the Pearson Square - Colorado State University