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

Biomass Kilograms (kg)

Required number in kg.

Feeding Rate Percent Per Day (%/day)

Required number in %/day.

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

Convert a chosen daily feeding percentage of live biomass into feed mass per day. Inputs are interpreted exactly in the displayed units and the calculation returns the following fields without presentation rounding.

Daily Feed Kilograms (kg/day)

Returned number in kg/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.

• Feeding Frequency

  Find the minimum whole number of meals to distribute a chosen daily ration without exceeding a chosen mass per meal.

• Protein Requirement

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

• Ammonia Excretion

  Estimate daily total-ammonia-nitrogen excretion from biomass and an externally determined excretion rate.