Description
Adjust feed mass while conserving supplied dry matter.
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.
Adjust feed mass while conserving supplied dry matter.
When to use this tool
Use Feed Batch Dry Mass Adjustment when checking the stated aquaculture feed, material or composition basis.
How to use the tool and how it works
- Enter recordedMass, oldMoisture, newMoisture. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read newMass, change. Use the output convention below.
Adjust feed mass while conserving supplied dry matter. Require recordedMass >= 0 and both moisture fractions in [0,1); newMass = recordedMass*(1-oldMoisture)/(1-newMoisture), change = new-recorded.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| recordedMass | Recorded Mass | Required. Finite number; minimum 0. |
| oldMoisture | Initial wet-basis water mass fraction, below one. | Required. Finite number; minimum 0; strictly below 1. |
| newMoisture | Target wet-basis fraction, below one; conserves dry matter. | Required. Finite number; minimum 0; strictly below 1. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| newMass | New Mass | Required. Finite number. |
| change | Change | Required. Finite number. |
{
"input": {
"recordedMass": 100,
"oldMoisture": 0.2,
"newMoisture": 0.1
},
"output": {
"newMass": 88.88888888888889,
"change": -11.111111111111114
}
}Limitations and assumptions
- This assumes dry matter is conserved; actual storage losses, feed quality and appropriate feeding are not assessed.
- 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
Similar or alternative tools
- Feed Energy Dry Basis Ratio
Convert as-fed specific energy to dry-matter basis.
- Feed Protein Ingested Mass Term
Return estimated ingested dry and protein mass.