Pearson-Square Feed Ration
Parts and percent of two feeds to hit a target nutrient level via the Pearson square.
Example
You enter
- Feed A nutrient % 9
- Feed B nutrient % 44
- Target % 16
You get
- Pct a 80
- Pct b 20
Checked against published worked examples from: Pearson square (land-grant animal science).
Details, formula, and sources
ScopeWith pounds of each for a given batch and a blend verification.
Formula or tableparts_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.
Source and editionPearson square method - standard land-grant animal-science ration formulation (USDA / university extension; Ensminger 'Feeds & Nutrition'), by name.
Free accessFree at university extension sites; the square is public arithmetic.
What governsEstimate. AHJ and licensed professional govern.
API field namesfeed_a_pct, feed_b_pct, target_pct, pct_a, pct_b
- Single nutrient balances one nutrient (e.g. crude protein), not energy and protein togetherPearson square method