Culture of Angelfish

Angelfish is a freshwater ornamental fish with laterally compressed round body and elongated triangular shaped dorsal and anal fins.

It is a piscivorous species that prey on small fish and other macro-invertebrates. It is a hardy species and can attain a maximum size of 12-15cm in length. It is one of the species with high demand in the local and foreign markets.

Construction of Net Cages

  • Construct 20 units of 1m x 3m net cages.

Pond Preparation

  1.   Drain the pond.
  2.   Level the pond bottom and dry for 5 days.
  3.   Apply fertilizer (chicken manure) at a rate of 1,500 kg/ha or 150 grams/m2.
  4.   Fill the pond with water up to one meter depth after five days of fertilization.

Installation of Cages

  • Install net cages in the pond by tying the top and bottom sides in the G.I. pipes.

Stocking

  •   Measure and weigh angelfish fingerlings before stocking.
  •   Stock the fish in cages early in the morning at 40 pcs/m2.

Feeding

Feed angelfish with commercial feeds (PO2) twice daily by broadcast method at the following rates: Culture period (mo.) = Feeding Rate (% body weight)

  • 1st = 10
  • 2nd = 5
  • 3rd = 3

Formula for Daily Feeding Ration

Daily Feed Ration (DFR) = ABW x N x FR

  • Where: ABW = ave. body wt. of fish
  • N = total no. of fish
  • FR = Feeding rate or percent body weight

Example:

  • for 120 pcs. angelfish with an
  • average wt. of 2g @ 10% FR
  • DFR = 2g x 120 x 10%
  • DFR = 24g

Water Management

Change 20% of the water volume weekly.
Maintain the following water quality parameters:

  • pH = 7.8
  • dissolve oxygen = 3-5mg/L
  • Temperature = 25-30 °C

Monthly Evaluation of Stocks

  • Weigh at least 10 pcs angelfish for feed adjustment purposes.

Harvesting

  • Harvest angelfish after three months of culture. This should be done early in the morning to avoid stress in the fish.
  • Record the number of stocks.
  • Condition the fish in tanks for marketing.

Prospectus

Assumptions:

  • Culture (cropping period) – 3months
  • No. of cropping/year – 3 Croppings
  • Stocking density – 40 pcs/m²
  • Survival rate – 90%
  • No. of net cages – 20 units (1m x 3m x 1m)
  • Pond area (existing) – 200m²

Fixed Costs:

  • 1 unit water pump = P 30,000.00
  • 1 unit oxygen tank = 3,000.00
  • 3.5 bundle B-net (single width at P3,500.00/bundle) = 12,250.00
  • 3 rolls P.E. rope at P250.00/roll = 750.00
  • 8 rolls nylon twine #1 at P25.00/roll = 200.00
  • 2 pcs scoop net = 900.00
  • Tubs and pails = 1,500.00
  • 17 pcs G.I. pipe at P350.00/pc = 5,950.00
  • Total = P 54,550.00

Operational Expenses:

  • 2,400 pcs angelfish fingerlings at P2.00/pc = P 4,800.00
  • 20 kg Prawn feed at P71.00/kg = 1,562.00
  • 45 L gasoline at P32.00/L = 1,440.00
  • 1 sack chicken manure at P60.00/sack = 60.00
  • 2 bundles plastic bags at P575.00/bundle = 1,150.00
  • Labor for the construction of 20 cages at P220.00/cage = 4,400.00
  • Labor for the cutting of G.I. pipe = 340.00
  • Labor for the installation of pipes and cages = 1,000.00
  • 1 caretaker at P4,000.00/month = 12,000.00
  • 2 laborers during harvest at P400.00/each = 800.00
  • Total = P 27,552.00

Gross Income:

  • 2,400 X 90% survival = 2,160 pcs at P20.00/pc P 43,200.00

Net Income:

  • P43,200.00 – P27,552.00 = P 15,648.00

ROI = P15,648.00 ÷ P27,552.00 x P100 = 56.79%

For more information, please contact:

BFAR Region 4A RFRDC  – Freshwater Fisheries Research Station
Bambang, Los Baños, Laguna
Tel.: (049) 827-3612

 

 

Loading...

Leave a Reply

Your email address will not be published. Required fields are marked *