Pangasius Culture in Cage

Pangasius Culture in Cage
I. BRIEF DESCRIPTION OF THE PROJECT:
The project is a rectangular floating fish cage with metal frame measuring 12m x
6m. installed in Small Farm Reservoir or Small Water Impounding Project (SFR/SWIP).
The floating frame is made of galvanized iron pipes joint together with the use of
scaffolding clamps with plastic drums (210 liter capacity) as floaters. The whole structure
is anchored on at least two sides to prevent it from drifting. The net cage is attached to
the floater like an inverted mosquito net where cultured fish are stocked.
The cage is made of nylon nets size 18 mesh measuring 10 meter long by 5
meters wide and 3 meters high. The customized net cage is attached to the floating frame
with at least .5 meters freeboard to prevent the stocks from escaping. The approximate
effective volume of the above mentioned cage is about 125 cubic meters.
The cage is stocked with P. hypopthalmus a tropical warm water catfish, which
grows to a maximum size of 8 kg. Under intensive aquaculture conditions the species will
reach harvest size of 1 kg. more or less in approximately 6-9 months. The fish are highly
resistant to crowding and low oxygen and convert low protein feeds. In Vietnam, much of
the production is done in large floating cages suspended in rivers, or in earthen ponds.
Cage production ranges from 35 to 65 kg/m 3
while pond production can exceed 35 MT/
ha.
To date, there are about 3,000 hectare combined area of SFRs and SWIPs
established in the region. These are potentials areas that can be tapped to produce
alternative fish species such as Pangasius. Our fish sufficiency level regionwide is only
about 65%. The demand for fish as source of protein especially in land-locked areas is
wanting. Hence, venturing into other species for culture could increase our sufficiency
level and generate job opportunities and increase income which could support our
government in the fight against poverty.
II. BRIEF TECHNICAL ASPECT
The recommended areas to be tapped are the existing SFRs and SWIPs which are
currently not optimized for aquaculture purposes. Water quality must be suitable for fish
culture with at least 2-3 meters deep or above during summer. Selected areas must be free
from water pollutants and accessible by land transportation for ease of inputs delivery
and movement of produced for marketing.
Stocking shall be done early in the morning or late in the afternoon to avoid too
much stress, which may result to high mortality. Proper care shall be taken to acclimatize
the newly procured fingerlings from the hatchery to the temperature of the SWIP/SFR by
floating the bags in the cages for at least 15 minutes before releasing the fingerlings into
the water.
Pangasius fingerlings size 14 will be fed with commercial feeds following a
feeding rate of 5% of their ABW to be adjusted bi-monthly ( see below feeding rate).
Feeding will be based on the following:
Culture Period Type of Feeds Feeding Rate Feeding
month Starter fry mash 5% of BW
2 month Starter fry mash 4.5%of BW
rd
3 month Juvenile floating 4%of BW
th
4 month Juvenile floating 3.5% of BW
th
5 month Adult floating 3% of BW
th
6 month Adult floating 2.5% of BW
III. INVESTMENT COST
Technical Information:
Production Area: 125m 3
1 st
nd
Frequency
2 times a day
(50% AM, 50%
PM)
Culture Period/Cycle:
floating fish cage
6 months
Stocking Rate:
3
8 pcs/ m
Average Survival Rate @ Harvest: 95%
Average Body weight @ Harvest: 1.2 kgs.
Total Harvest per Cycle 1,140 kgs.
Farm Gate Price: P 80.00
Gross Sales: P 91,200

A. Development and Equipment/Paraphernalia
Fish Cage Construction
Materials: 93,300.00
2 rolls Knotted net (size # 17, 100 m/roll) 14, 000.00
24 pcs. G.I. pipe sched 40 ø 1 ¼ “ 36, 000.00
24 pcs. Plastic drums, 210L capacity 19, 200.00
52 pcs. Scaffolding clamp 13, 600.00
2 rolls PE rope #20 (anchor) 1,700.00
4 rolls PE rope #10 1,800.00
6 rolls PE rope #7 1,700.00
4 spools PE rope #2 (Hirata) 300.00
Labor for Construction and Installation of Cages 5,000.00
Basic Structures:
Caretaker Hut/Bodega 3,000.00
Equipments/Tools: 3,200.00
Bamboo Raft 2,000.00
Weighing Scale 500.00
Tubs or pails 500.00
Scoop Net 100.00
Records keeping materials 100.00
Total Construction Cost 99,500.00
Depreciation Cost/Year
Item Cost (Php) Life Span (Years) Annual Dep. Cost (Php)
G.I Pipes 36,000 8 4,500
Plasctic Drums 19,200 8 2,400
Scaffolding Clamp 13,600 8 1,700
Nylon Net 24,500 3 8,200
Bamboo Raft 3,000 3 1,000
Caretaker Hut 3,200 3 3,100
Total Annual Depreciation Cost 20,900
B. OPERATING COST/CYCLE 45,900.00
Fingerlings:
1000 pcs of Pangasius fingerlings @ 4.00 /pc 4,000.00
Commercial Feeds: 27,900.00
6 bags Starter feeds @ 650.00/bag 3,900.00
15 bags Juvenile feeds @ 600.00/ bag 9,000.00
25 bags Adult feeds @ 600.00/ bag 15,000.00
Other Overhead Costs 14,000.00
Labor Cost 12,000.00
Harvesting Cost 1,000.00
Marketing Cost 1,000.00
A. CALCULATION BENEFITS
Gross Revenue: 182,400.00
Net Income/Year: 69,700.00
Return of Investment (ROI): 74.7
Payback Period : 1.33
Commodity Leader/Contact person: Dominador Abalos
Email Address: domsky_49@yahoo.com
Contact Number: 09293973366