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

Water Quality Management on the Enhancement of Shrimp (penaeus Monodon Fab.) Production in the Traditional and Improved-traditional Ghers of Bangladesh

S.U. Ahmed
Bangladesh Fisheries Research Institute. Brackishwater Station, Khulna 9280, Bangladesh

M.S.Islam
Bangladesh Fisheries Research Institute. Brackishwater Station, Khulna 9280, Bangladesh

M.R. Saha
Bangladesh Fisheries Research Institute. Brackishwater Station, Khulna 9280, Bangladesh

A.F.M. Shofiquzzoha
Bangladesh Fisheries Research Institute. Brackishwater Station, Khulna 9280, Bangladesh

Abstract/ Executive Summary:

On-farm research on enhancement of P. monodon production through water quality management was carried out in five ghers of Paikgacha, Khulna. Based on the prevailing condition of the ghers, lime in the form of CaC0₃, urea and TSP were used as the major inputs to minimize the soil-water acidity and to ensure the availability of natural food particles in the water bodies. Exchange of water at required level also practised for the qualitative improvement of culture water. Ghers of varying sizes showed that water quality management and fertilization have a positive impact on production performance of P. monodon (61.59% increment) that yielded an average production of 385.43 kg/ha/crop against the present traditional rate of 238.50 kg/ha/year.

Keywords: P. monodon, Water quality, Traditional farming

Location: Paikgacha, Khulna

Start Date: 00-00-1996

End Date: 00-00-1996

Program Area: Animal Health and Management

Commodity: Shrimp

Objectives:

To find out the appropriate shrimp farm management techniques with a view to obtain higher production.

Methodology:

Preparation of ghers - The study was carried out in five selected ghers of Paikgacha. Construction of dikes and gates were completed by the farmers as per instruction and then allowed to exposed the drain out wet field by sun light for about fifteen days. Based on the level of acid content gher bottom was flushed 3-5 times with tidal water to minimize the acidity. Lime were also applied depending upon the pH level of the soil. Cow dung and mustard oil cake (MOC) were applied at the rate of 500 kg and 100 kg/ha, respectively. Inorganic fertilizers, like, triple super phosphate (TSP) and urea were also applied at the rate of 30 kg/ha (TSP:U=3:1). After 4 to 5 days of fertilization, ghers were filled with water up to a depth of about 15-20 cm and then after one week, the depth of each gher was finally maintained at about 90 cm on an average. Stocking of P. monodon seed - P. monodon postlarvae from local rivers of average 0.006g were stocked at a rate of 1.5 to 1.75/m². Depending upon the unavailability of local seeds farmers sometime used imported seeds from Thailand, India, Taiwan and Indonesia. In all the cases, PL were screened before stocking by high rate of aeration in 100 ppm formalin solution for about thirty minutes. Water management - Water quality parameters such as dissolve oxygen (DO), pH, salinity, water temperature, transparency, un-ionized ammonia, hydrogen sulphide and alkalinity content were monitored weekly basis. Based on the prevailing soil-water condition and as per need, fortnight water exchange were done by tidal flushing during new and full moons followed by application of chemical fertilizers at a rate of 15kg/h (TSP: U = 1: 3). To keep the pH and alkalinity ofwater at a standard level, lime in the form of CaC0₃ was applied as per requirement (150-150 kg/ha). Growth data recording - For the calculation of growth performance average weight of shrimp were recorded by fortnight sampling. The final growth and survival rate was calculated at the end of the culture period. Major portion of the shrimps were harvested after 120-150 days of rearing. But partial harvest of the marketable size shrimps before the stipulated period were encouraged to enhance the growth of smaller ones by increasing space and feed for the individuals of the remaining stock.

Source of Information: Bangladesh J. Fish. Res., 4(1): 63-68, 1999

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Water quality management and fertilization have a positive impact on production performance of P. monodon (61.59% increment) that yielded an average production of 385.43 kg/ha/crop against the present traditional rate of 238.50 kg/ha/year.

Knowledge Management: Journal