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Feed Energy Dry Basis Ratio Tool

Convert supplied energy per as-fed mass to energy per dry mass; no feeding recommendation.

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Description

Convert as-fed specific energy to dry-matter basis.

Aquaculture material budgets distinguish as-fed mass, dry mass, specific energy and nutrient fractions. Offered feed, recovered feed and estimated intake are different quantities. Arithmetic balances do not determine biological utilization, an appropriate diet, disease status or a safe feeding recommendation.

Convert as-fed specific energy to dry-matter basis.

When to use this tool

Use Feed Energy Dry Basis Ratio when checking the stated aquaculture feed, material or composition basis.

How to use the tool and how it works

  1. Enter asFedEnergy, dryFraction. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read dryBasisEnergy. Use the output convention below.

Convert as-fed specific energy to dry-matter basis. Require asFedEnergy >= 0 and dryFraction in (0,1]; dryBasisEnergy = asFedEnergy/dryFraction.1

Input fieldMeaning and unitsAccepted input
asFedEnergySpecific energy per unit wet feed mass, not total batch energy.Required. Finite number; minimum 0.
dryFractionDry FractionRequired. Finite number; maximum 1; strictly above 0.
Output fieldInterpretationReturned shape
dryBasisEnergySpecific energy per dry mass, in compatible energy/mass units.Required. Finite number.
json
{
  "input": {
    "asFedEnergy": 10,
    "dryFraction": 0.8
  },
  "output": {
    "dryBasisEnergy": 12.5
  }
}

Limitations and assumptions

  • AsFedEnergy must be energy per as-fed mass, not total energy; digestibility, nutrient needs and a suitable ration are not determined.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
  • Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Use verified feed and animal records, representative measurements and qualified aquaculture/veterinary advice for actual nutrition, welfare or water-quality decisions.

References

  1. Calculation and input contract: aquaculture/feed-energy-dry-basis-ratio — tool.io

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