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Redclaw Crayfish Farming

Redclaw (Cherax quadricarinatus) is a freshwater crayfish native to Australia.  Redclaw has a smooth lustrous
shell, deep blue to green colour, with males exhibiting a bright red colour on the margins of their large claws  

Rationale for Investment
  • Production technology available.
  • High profitability.
  • Huge international markets.
  • Significant potential for growth.

Commercial and Technical Merits

  • Redclaw is excellent for aquaculture due to its physical, biological and commercial attributes.
  • Robust species with broad geographic potential & simple life cycle.
  • Production technology uncomplicated, viable & proven.
  • Simple feeds.
  • Relatively economical to produce.
  • Looks like a lobster and good eating qualities,  premium end of the crustacean market spectrum.
  • A$12 to 19/kg farm-gate price depending on size.
  • Sold as live product, cooked or frozen.

Keys to Commercial Success

  • Climate and geography.
  • Selection of strains with high fecundity and fast growth rates.
  • Pond size, shape, design and water quality, temperature, recycling. and effluent management.
  • Superior brood stock and establishment of a system for producing juveniles for stocking.
  • Shelter and feed for juvenile production and grow-out stock.
  • Selection of harvesting techniques.
  • Postharvest management techniques & processing technology.
  • Marketing and transportation know-how.
  • Consumer awareness and product standards.
  • Quality, quantity and consistency of supply.
  • Produce redclaw with attributes according to consumer and market requirements.
Profitability Analysis
Australian operations
Assumptions

Pond area of 4.7 hectares: 7 juvenile + 40 grow-out ponds.
This represents the minimum pond area for commercial viability.

20 year project life.

Annual harvest 394 kg/grow-out pond from Year 2 onwards.

Average growing time 9 months to 65 g mean weight which fetches A$14/kg at farm gate.

Farm establishment cost = A$347,900 (land, labor, machinery, farm infrastructure).

Average farm profit A$5.25/kg/year.

Total production costs = A$8.25/kg each year (all operating costs, capital costs, & allowance for owner's labor and management).
Analysis

Discounted Payback Period = 4 years (to recover initial outlay).

At an annual yield of 394 kg/grow-out pond the minimum price for the investment to be profitable was A$8.25/kg.

Conversely, at an assumed price of A$13.50/kg, the minimum yield for profitability was 232 kg/grow-out pond.

Grow-out periods vary between 6 to 15 months depending on weight desired for marketing. Analysis of the interaction between prices, survival rates and market weights showed that the most profitable option was a grow-out period of 9 months.

Indicated gross profit is:
$2,500 X 40 = A$100,000/year from Year 2.
  Source: Rural Industries Research & Development Corporation (1997)
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