Description
Return manure and retained nutrient per supplied animal-days.
Animal-production budgets depend on measured quantities, population exposure and wet/dry or yield conventions. A per-animal quantity or material balance can reconcile records without establishing an appropriate housing, water or production target. Biological variation and welfare require independent assessment.
Return manure and retained nutrient per supplied animal-days.
When to use this tool
Use Manure Nutrient One Animal Day Term when checking the stated animal-record quantity, allocation or material basis.
How to use the tool and how it works
- Enter animals, days, manurePerAnimalDay, nutrientFraction, retainedFraction. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read manureMass, retainedNutrient. Use the output convention below.
Return manure and retained nutrient per supplied animal-days. Require nonnegative whole animals, days/rate >= 0 and fractions in [0,1]; manureMass = animals*days*rate, retainedNutrient multiplies nutrient/retained fractions.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| animals | Animals | Required. Safe integer; minimum 0. |
| days | Days | Required. Finite number; minimum 0. |
| manurePerAnimalDay | Manure Per Animal Day | Required. Finite number; minimum 0. |
| nutrientFraction | Nutrient Fraction | Required. Finite number; minimum 0; maximum 1. |
| retainedFraction | Retained Fraction | Required. Finite number; minimum 0; maximum 1. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| manureMass | Manure Mass | Required. Finite number. |
| retainedNutrient | Retained Nutrient | Required. Finite number. |
{
"input": {
"animals": 10,
"days": 5,
"manurePerAnimalDay": 20,
"nutrientFraction": 0.01,
"retainedFraction": 0.8
},
"output": {
"manureMass": 1000,
"retainedNutrient": 8
}
}Limitations and assumptions
- Rate and composition basis are supplied; actual emissions, nutrient availability and appropriate land application 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 representative records and qualified husbandry/veterinary assessment for actual animal welfare, facilities or production decisions.
References
Similar or alternative tools
- Livestock Weighing Time Shrink Term
Apply or reverse a supplied livestock mass-shrink fraction.
- Feed Dry Matter Share Residual
Return dry mass from wet-mass water fraction and a record residual.