CAT fish production
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Transcript CAT fish production
By Rory Mackie
Overview
Aquaculture Industry Overview
The African Sharp-tooth Catfish
Options for Zimbabwe
Mr Muramba
Conclusion
Aquaculture: A Global Perspective
What is Aquaculture?
Aquaculture is the rearing of aquatic organisms in
captivity
Give a man a fish and you feed him for a day, Teach a
man to fish and you feed him...... Only until the wild
stock lasts, Teach a man to grow fish and you feed him
for a lifetime (Aquaculture Innovations)
Aquaculture Growth
1993 – 17.8 Million tons produced
2006- 51.62 Million tons
Average growth of 8% p.a.
Nigerian aquaculture produced 751 000 tonnes of fish of
which:
80,000 tonnes were African Sharp tooth Catfish
Doubles every 3 years
Zimbabwean Aquaculture produced 3 to 4,000 tonnes,
Bream only (Lake Harvest)
10,000 Tonnes of wild fish production (Kapenta)
Figures: FAO 2009 and Aquaculture Zimbabwe Trust
Why Aquaculture?
Dwindling wild fish catches
Increased demand for fish
Growing world population
Increased expendable income
Greater demand for healthy white meat
The African Sharptooth Catfish
(Clarias Gariepinus)
Catfish, Muramba or Barble
Advantages
The ULTIMATE aquaculture species
Air breather – Can obtain o2 from the atmosphere
Fast Growth - 6 Months to 1kg
High stocking density – Up to 750kg/m3 in RAS
Disease resistant – High tolerance to poor water
quality
High fecundity – 50,000 eggs/kg of female
High dress out percentages – Over 50%
Low labour demand, low water demand
Storage – Can survive out of water for several days
Options for Rural Zimbabweans
Earth Ponds
Advantages
Cheap - Easy to build, minimal equipment required
Low level of expertise – Minimal management
Natural heating – Sun is for free
Low risk – As compared to other aquaculture systems
15 Tons per Hectare *
150kg from a 10m x 10m pond (Bream 20 to 30kg’s)
Feeding with a nutritional compete sinking pellet
F.C.R of 1.8*
Cost per Kg of Protein $1.44 (Cost of Feed 80c/Kg )
Fish can be dried and stored
*Manual for the Commercial Pond Production of African Catfish in
Uganda USAID and Fisheries Investment for Sustainable Harvest
Mr Muramba
Recirculating Air System
Commercial production of Catfish fingerlings
Commercial production of Catfish for sale as a food
fish
15mx4m Insulated building
2 Labourers
1o Tonnes a month
100,000 Fingerlings a month
Conclusion
Test Case
Results from Zimbabwe
Education
Courses
Training