Shrimp Farming Economics: Cost per Kilo, Survival and What Moves the Margin

Shrimp farming looks simple from the outside — fill a pond, stock post-larvae, feed, harvest — and is unforgivingly numerical in practice. Profit is the difference between farm-gate price and a cost per kilogram assembled from a handful of biological and operational drivers, and small changes in those drivers swing the result from loss to solid margin. This guide takes the cost stack apart line by line, so that investment and upgrade decisions are made on the levers that actually move it.

1. The unit economics stack

Cost per kilogram of harvested shrimp is not one number but a chain: post-larvae cost divided by survival, feed cost multiplied by feed conversion divided by survival again, energy for aeration and pumping, labour, health management, pond preparation, and harvest and logistics. Every driver multiplies the others, which is why single-fix thinking fails — a cheap PL source with poor survival can cost more than an expensive certified one. The shrimp cost per kg calculator assembles the chain into a number you can stress-test.

2. Stocking density and crop intensity

Density sets the ceiling on everything else. Extensive systems stock lightly and rely on natural productivity; intensive systems stock heavily and must buy the aeration, water exchange and feed management to support it. Higher density raises potential yield per hectare but raises risk, power consumption and management intensity at the same time. Density should be chosen from aeration capacity, water supply and the skill of the team — not from the yield a brochure promises. The stocking density calculator and shrimp pond aeration calculator keep that choice honest.

3. Survival is the multiplier

Survival is the single most powerful number in shrimp economics because it divides nearly every cost already sunk into the crop. The feed, PL, energy and labour invested in shrimp that die is carried by the shrimp that survive. A few percentage points of survival — especially late in the cycle when each animal embodies months of feed — can be worth more than any equipment decision on the farm. The shrimp survival profit calculator shows how steep that sensitivity is, and it is why biosecurity spending is an operating investment, not overhead.

4. FCR and feed cost

Feed is the largest single cost line, and economic FCR — total feed fed divided by total biomass harvested, including feed invested in mortality — is the metric that matters. Feed quality, feeding regime, water quality and health all show up in FCR. Automatic feeders with acoustic or timer control exist precisely because small, frequent, well-targeted meals convert better than twice-daily broadcasting. Model the sensitivity with the FCR calculator, the FCR cost impact calculator and the feed budget calculator.

5. Growth rate and cycles per year

Pond time is a fixed cost: rent or capital charge, labour and management run whether the shrimp grow fast or slowly. Faster growth to harvest means more crops per year from the same asset, which spreads every fixed cost across more kilograms. Growth depends on temperature, water quality, PL genetics and feeding — and it is why a slightly more expensive input that shortens the cycle by two weeks can outpay a cheaper one.

6. Harvest size and the price ladder

Shrimp are priced by size count, and larger animals command a meaningfully higher price per kilogram in most markets. The economic question is not 'how many kilograms' but 'how many kilograms at which count'. Holding a crop longer buys size at the cost of more feed, more risk days and a later next crop — the optimum is a calculation, not a habit. Partial harvests and size-grading gear exist to manage exactly this trade-off.

7. Energy and aeration

In intensive ponds, aeration is the main electrical load and the main defence against the early-morning oxygen crashes that kill crops. The fair comparison between aerators is kilograms of oxygen transferred per kilowatt-hour plus reliability and local service, not purchase price. Energy belongs in the unit economics, not in a separate budget line — the shrimp farm energy calculator prices it against the local tariff, and aeration in tropical shrimp ponds covers the sizing discipline.

8. Post-larvae quality and the hatchery link

The crop is largely decided in the hatchery. Certified, screened PL from a reputable source cost more per thousand and routinely pay for themselves through survival and growth; unscreened PL are the cheapest input and the most expensive outcome. For vertically integrated or remote projects, an on-site hatchery or nursery changes the economics again — the shrimp hatchery package workflow walkthrough shows how that scope is tendered in lots.

9. Health, biosecurity and labour

Disease is the dominant downside risk in shrimp farming, and most of it is managed before symptoms appear: pond preparation and drying between cycles, reservoir and inlet treatment, bird and crab exclusion, quarantine of new stock, and water quality monitoring discipline. Labour scales with intensification — a skilled technician managing feeding and water data produces more margin than additional unskilled hands.

10. Price, logistics and market access

Farm-gate price is set by the market, but realised price is set by what arrives: chilling at harvest, transport time, documentation and the buyer's size and quality specifications. Farms that plan the cold chain as part of the production system — not as an afterthought at harvest — keep the price the market offered. The cold storage calculator and processing capacity calculator size that side of the operation.

11. Which levers actually pay back

Ranking the levers by typical impact per unit of management effort: survival first, because it multiplies everything; FCR second, because feed is the biggest line; growth and cycles per year third, because fixed costs spread; harvest size strategy fourth; and only then equipment substitution. Upgrades should be evaluated the same way — added yield and survival against added OPEX and capital, as in the shrimp farm upgrade economics article and the upgrade checklist.

12. From numbers to a sourcing decision

When the economics point at a specific weakness — aeration capacity, feed delivery, water treatment, PL supply — the fix becomes a procurement question with a defined specification. FishMatch Group structures that specification into a brief, reviews it manually with the project owner, and only then approaches matched suppliers; nothing is sent automatically and supplier identities stay confidential until introductions. Start with a human-reviewed RFQ or test the numbers first in the shrimp economics calculators. Calculator outputs are indicative planning figures, not financial advice.