Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Growth and Production Performance of Red Tilapia and Nile Tilapia (oreochromis Niloticus Lin.) Under Low-input Culture System

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

P.C. Modak
Dept. of Agricultural Statistics, BAU, Mymensingh 2202, Bangladesh

Abstract/ Executive Summary:

Comparative production potential of red tilapia (a mutant hybrid of Oreochromis niloticus x O. mossambicus) and nile tilapia (Oreochromis niloticus) under low-input aquaculture was studied in six ponds of 360 m²each with an average water depth of 90 cm. Three ponds were stocked with fingerlings of 0. niloticus (average weight 11.4±3.48 g) while three other ponds were stocked with red tilapia (average weight 10.72±2.5 g) at a density of 20,000 fingerlings/ha. Supplementary feed consisting of rice bran was given daily at 4-6% of standing biomass. Ponds were fertilized at fortnightly intervals with cattle manure @ 750 kg/ ha. After six months of rearing, gross fish productions of 3,218 and 3,017 kg/ha were obtained from 0. niloticus and red tilapia ponds, respectively. Of this, table size fish (>80 g in size) production amounted to 2,366 and 2,823 kg/ha from 0. niloticus and red tilapia culture, respectively. Analysis of cost and benefits showed higher benefit from red tilapia culture.

Keywords: Red tilapia, Nile tilapia, Growth

Location: Freshwater Station, Bangladesh Fisheries Research Institute, Mymensingh

Start Date: 00-10-1992

End Date: 00-03-1993

Program Area: Animal Health and Management

Commodity: Tilapia

Objectives:

To assess the production of red tilapia using only rice bran as supplementary feed and the advantages of its culture, if any, over that of Nile tilapia (Oreochromis niloticus) under similar culture management.

Methodology:

The study was undertaken in drainable earthen ponds of 360 m²each, with an average water depth of 90 em during October '92 through March '93. The ponds were prepared by draining and application of lime to the pond bottom at the rate of 250 kg/ha. Three days after the application of lime, ponds were filled with ground water and fertilized with cattle manure at the rate of 750 kg/ha. Five days after the application of cattle manure, inorganic fertilizers - urea and triple super phosphate (TSP) were applied at the rate of 8.0 and 17.0 kg/ha, respectively. Three days subsequent to application of inorganic fertilizers, stocking was done: three ponds with fingerlings of Nile tilapia (Oreochromis niloticus) of average weight 10.4 (±3.48) g and another three ponds with red tilapia fingerlings of average weight 10.72 (±2.5) g. Stocking density of fingerlings in all ponds was maintained at 20,000/ha. Rice bran (with 5.95% protein) was applied in ponds every day as supplementary feed at the rate of 6% of the standing fish biomass. During December and January months when the temperature of water dropped from 24 to 16 °C, feeding was reduced to 4% of standing fish biomass. Subsequent to stocking, all the ponds ware fertilized regularly at fortnightly intervals with cattle manure at the rate of 750 kg/ha. The ponds were sampled at fortnightly intervals to assess growth and condition of fish and feeding was adjusted on the estimated fish biomass in ponds. Two month after stocking, ponds were netted at fortnightly intervals using a 0.5 em mesh seine net and the fry I fingerlings caught in the net were harvested. Records were maintained on the number and weight of fry harvested. All the ponds were completely harvested after six months of rearing, first by seining and later by draining the pond. Dissolved oxygen, pH and temperature of water were measured at weekly intervals using a HACH kit. Student's t-test was used to compare the treatment means at 5% level of significance.

Source of Information: Bangladesh J. Fish. Res., 3(1): 11-17, 1999

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Nile tilapia performs well in terms of feed conversion efficiency, its relatively low growth and higher fry production makes it less promising than red tilapia in overall production potential. However, low breeding intensity in case of red tilapia could be a constraint for large-scale seed production.

Knowledge Management: Journal