Dear Fish Farmer,
Introducing.......
The Best Kept
Secret in fish farming
.......a golden opportunity
By Israel Ademuyiwa Adediran
Dear
Fish Farmer, Secret in fish
farming
Introducing....... ......a golden opportunity
The Best Kept
By Israel Ademuyiwa Adediran
We’ll like to tell you
about one of the best kept secret in the world of fish farming: THE
RECIRCULATING AQUACULTURE TANK PRODUCTION SYSTEM. You may recognize the name.
But probably don’t know
what it is all about or why this article is written. We’ll make it
quick.....lets read on.
The facts below will
surprise you, concerning the BENEFITS OFFERED by this method of aquaculture as
opposed to the flow-through or conventional fish farming methology.
|
Recirculation
|
Conventional
|
|
1.
Quick growth of fishes yielding
as much as 1.2kg in 5months.
|
Slower growth,
farmers
get 200gms fish in 6 month to 1yr.
|
|
2.
High stocking
density between
100-540 fishes per square metre yielding as much as N100,000 worth of fish
per square metre in 5 months.
|
Low stocking
density as
most propaganda on fish farming talk of 2
to 10 fishes per square metre yielding N1,500 worth of fish per square metre.
|
|
3.
Tremendous water
savings with 10,000 litres of water producing 4.2 tonnes of fish = ½ gallon of water to raise 1kg of fishes.
|
Huge waste of
water with
1 million gallons of water per acre to produce 1kg of fish.
|
|
4.
Cost savings with no need
for netting and security fence since it is mostly located in a limited space
close to or within living quarters.
|
Fish
farming dreams are always preceded with thoughts of acquiring acre of remote
swampland with the attendant gargantuan
cost of fencing, security guards and netting against frogs, cats, snakes,
birds, etc.
|
|
5. Most of the
fishes are visible making access easy to
monitor their size, number, health and to Grade.
|
Green
and murky water is one big nightmare of earthen pond owners as fish observation distorted.
|
|
6.
Oxygen level
is about 3-10 times higher (20%-98% concentration) because of the pumps
aeration and water falls (with optional pure oxygen injector) and the absence
of green or murky water.
|
The
stagnant waters of fish ponds contains only 8%, oxygen, and quickly drops to 0.001% within 24hrs but fishes
grows faster with more oxygen, for
catfish in an open ponds this is bad news as the green algae in pond
water also consumes oxygen at night when catfish are supposed to be active.
|
|
7. 210 tonnes per acre is possible!
|
Only
2.5 tonnes per hectares is possible.
|
|
8. Harvesting is easy and can be
done by 2 people.
|
Harvesting is
another nightmare with
huge net large number of labourers and heavy stress on fish.
|
COST
OF CATFISH FARM AS AT MARCH 2004
|
No
|
Size
|
Income
Tonnage
|
Cost
of Construction
Excl:
Land, Fence, Borehole, Power Gen
|
Cost
of Operation for 1year
Incl:
Pellet Machine, Nets, Fingerlings, Feeds, Labour.
|
Total
|
|
1.
|
2
ponds of 2mx4m
|
6T
for 1.5m income annually
|
750,000
|
720,000
|
1,470,000
|
|
2.
|
2
ponds 2mx5m with Grading pond
|
10T
for N25m income annually
|
900,000
|
1,100,000
|
2,000,000
|
|
3.
|
4
ponds of 2mx5m with Grading pond
|
20T
for N5m income annually
|
1,522,000
|
1,750,000
|
3,272,000
|
|
4.
|
6
ponds of 2mx5m with Grading ponds
|
30T
for N7.5m income annually
|
2,550,000
|
2,650,000
|
5,200,000
|
|
5.
|
6
ponds of 3mx7m with Grading ponds
|
60T
for N15m income annually
|
5,150,000
|
6,150,000
|
11,300,000
|
|
6.
|
Mobile
Circular Vats system
|
5T
for N1.2m income annually
|
850,000
|
400,000
|
1,250,000
|
|
7.
|
250,000
fingerlings production facility
|
N2.5m
per 2months or 15m per annum
|
3,900,000
|
3,900,000
|
7,800,000
|
|
8.
|
Hatchery
& Nursery set for 10 tanks 40,000 fingerlings
|
400,000
per 2 months or N2.4m per annum
|
400,000
|
800,000
|
1,200,000
|
For
updated Bill of Quantities and prices, Whatsapp – 08096680061 or mail mrfishbiodisk@gmail.com or catfish192001@yahoo.com
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