Use this calculation to compare aquaculture production, feeding, growth, water-quality, or hatchery measurements collected with the same definitions and units.

Daily Feed Kilograms (kg/day)

Required number in kg/day.

Feed Energy Mj Per Kg (MJ/kg)

Required number in MJ/kg.

The cited overview of Aquaculture supplies background for the terminology and domain context used by this tool.^[1]

Calculate energy supplied by a feed ration; it does not infer a species' metabolic requirement. Inputs are interpreted exactly in the displayed units and the calculation returns the following fields without presentation rounding.

Dietary Energy Mj Per Day (MJ/day)

Returned number in MJ/day.

• Species, life stage, temperature, salinity, system design, sampling method, and management practice can materially change aquaculture measurements and suitable operating ranges.
• Use finite inputs in the displayed units, preserve source measurements and assumptions, and independently verify consequential decisions.

Complement the calculation with calibrated water-quality instruments, representative sampling, feed and mortality records, and species-specific guidance from qualified aquatic-health or production professionals.

• Protein Requirement

  Calculate protein delivered by a daily feed ration from the feed's stated protein mass percentage.

• Stocking Density

  Calculate live biomass per cubic metre of stocked water; this does not prescribe a safe species-specific density.

• Carrying Capacity

  Convert a user-supplied planning density to total biomass; the tool does not determine an ecologically safe limit.