Start / Livestock and aquaculture

Fish farming

Stocking density, daily feed, conversion and cost, aeration, water exchange, growth up to harvest, cost per kg and pond liming.

Stocking density

Calculate the stocking density of fish in fish per cubic metre and kilos of live weight per cubic metre, and the number of fish for the target density.

Fish and biomass per cubic meter of pond

Daily fish feed

Calculate the daily feed for fish from the biomass and the feeding rate, and divide the amount by the number of meals in the day.

Kilos of feed per day and per meal based on biomass

Conversion and fish feed cost

Calculate the feed conversion of the fish lot, the feed consumed, the biomass gain and the feed cost per kilo produced, net of deaths.

Feed conversion, total feed and cost per kilo of fish

Pond aeration

Estimate the oxygen that the fish biomass consumes per day and the aeration power needed, from the consumption rate and aerator efficiency.

Oxygen per day and aerator power for the biomass

Water exchange

Calculate the flow needed to renew the water in the fish pond or tank, for the number of times per day or the exchange time you want.

Flow to renew the pond volume in the desired time

Growth and harvest

Calculate how many days the fish take to reach harvest weight, from the initial weight, the specific growth rate and the target weight.

Days to fish harvest weight by growth rate

Cost per kg and break-even

Calculate the cost per kilo of fish produced, the margin per kilo and the break-even point in kilos for the cycle, from fixed costs, variable costs and the selling price.

Cost per kilo produced and minimum production to break even

Pond liming

Calculate the amount of limestone for the fish pond, corrected for the limestone's PRNT, based on the recommended dose and the flooded area.

Limestone corrected by PRNT for the pond area