Pearson-Square Feed Ration

Parts and percent of two feeds to hit a target nutrient level via the Pearson square.

Example

You enter

You get

Details, formula, and sources

With pounds of each for a given batch and a blend verification.

parts_a = |B - target|; parts_b = |A - target|; pct_a = parts_a/(parts_a+parts_b)*100. The target must lie strictly between A and B.

Pearson square method - standard land-grant animal-science ration formulation (USDA / university extension; Ensminger 'Feeds & Nutrition'), by name.

Free at university extension sites; the square is public arithmetic.

Estimate. AHJ and licensed professional govern.

Field names used by the API: feed_a_pct, feed_b_pct, target_pct, pct_a, pct_b