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Monoculture of Climbing Perch, Thai Koi, Anabas Testudineus (bloch) Under Different Stocking Densities at On-farm

A.H.M. Kohinoor
Freshwater Station, Bangladesh Fisheries Research Institute Mymensingh 2201, Bangladesh

M.G. Hussain
Freshwater Station, Bangladesh Fisheries Research Institute Mymensingh 2201, Bangladesh

M. Zaher
Freshwater Station, Bangladesh Fisheries Research Institute Mymensingh 2201, Bangladesh

D.A. Jahan
Freshwater Station, Bangladesh Fisheries Research Institute Mymensingh 2201, Bangladesh

A.K.M.S. Islam
Freshwater Station, Bangladesh Fisheries Research Institute Mymensingh 2201, Bangladesh

Abstract/ Executive Summary:

An on-farm trial was undertaken in nine earthen ponds (400 to 640 m²) to evaluate the growth and production potentials of climbing perch, Thai koi (Anabas testudineus) for the period of four months from March through June 2006. Three stocking densities such as 75,000 (T₁), 100,500 (T₂) and 125,000/ha (T₃) were tested with three replications. Fish were fed with commercial (SABINCO) pelleted feed (35% crude protein). Fish productions obtained in three treatments such as T₁, T₂ and T₃ were 6,480±217, 6,384±154, 6,617±187 kg^-¹ha, respectively. The results demonstrated higher mean growth in T₁ than in T₂ and T₃. However, the net benefit was achieved Tk. 7,26,975 from T₁, where the stocking density was 75,000/ha.

Keywords: Anabas testudineus, Monoculture, Stocking density

Location: Trishal upazilla, Mymensingh district, Bangladesh

Start Date: 00-03-2006

End Date: 00-06-2006

Program Area: Animal Health and Management

Commodity: Koi/Climbing

Objectives:

1. To evaluate the production potentials of Thai koi at on farm management under different stocking densities.

Methodology:

The experiment was carried in nine farmer's ponds of 400 to 640 m² with depth of 1.2 to 1.5 m in Bailor village under Trishal upazilla in Mymensingh district, Bangladesh for a culture period of four months during March to June 2006. Before beginning of the experiment, ponds were drained, renovated and cleaned of aquatic vegetation and all small fish and other larger aquatic organisms. Later all ponds were limed (CaO) at the rate of 250 kg/ha. Then after three days, ponds were filled up with underground water and fertilized with cattle dung at the rate of 2,000 kg/ha. The ponds were allocated into three treatments groups and each having three replicates. Fingerlings of Thai Koi (Anabas testudineus) were stocked at the rate of 75,000, 1,00,500 and 1,25,000/ha under treatment-1 (T₁), treatment-2 (T₂) and treatment-3 (T₃) on 01 March 2006. Before stocking, the initial mean weights of the fry were measured using sensitive balance (OHAUS Model CS-2000). After stocking, in all the treatments, a 35% protein containing pelleted feed (SABINCO feed) were applied at the rate of 16-4% of estimated fish biomass twice daily at 10.00 hr in the morning and at 15.00 hr in the afternoon. The fingerlings were fed at the rate of 16% of their body weight for the first two weeks and it was reduced to 4% on the subsequent weeks. During the culture trial, in every month all the ponds were lime at the rate of 125 kg/ha. Fish sampling was done at fortnightly interval through seine netting and weighing SO fish to measure the growth to assess the health status and for feed adjustment. Water quality parameters such as water temperature (°C), DO (mg/l), pH, alkalinity (mg/l) were monitored weekly from 0930 to 1000 hrs. Water temperature was recorded using a Celsius thermometer and transparency was measured by using a Seechi disc of 20 em diameter. Dissolve oxygen and pH were measured directly using a digital portable oxygen meter (OAKTON) and portable pH meter (HANNA 8424), respectively. Alkalinity was determined following the titrimetric method. Plankton sample was collected fortnightly using 25 p.,m mesh plankton net and later analysed numerically with the help of a Sedgewick-Rafter counting cell (SR-cell) under a compound microscope.

Source of Information: Bangladesh J. Fish. Res., 11(2), 2007: 173-180

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

In the present study, the net return was higher than the above findings. The production as well as economic return obtained was very encouraging and the Thai Koi fish culture would add an extra in such a way that farmer may get a chance to consume them readily than sale them to the market.

Knowledge Management: Journal