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

Effect of Stocking Densities on Production and Economic Return from the Shrimp, Penaeus Monodon (fabricius) Under Semi-intensive Culture System in Bangladesh

M. Mostafa
Fisheries & Marine Resource Technology Discipline, Khulna University, Khulna 9208, Bangladesh

Mike. Elliott
Institute of Estuarine and Coastal Studies, The University of Hull, Hull, HU6 7RX, UK

Mahmudur Rahman
Business Administration Discipline, Khulna University, Khulna 9208, Bangladesh

Abstract/ Executive Summary:

A study on production and economic return from the semi-intensive culture of Penaeus monodon (Fabricius) in relation to the stocking densities of 12, 15, 18 and 21 PL/ m² of 112 days culture period is presented. The study was conducted to determine the suitable stocking density for maximum economic return. The results of the four treatments, T1 (12 PL/m² ), T2 (15 PL/m² ), T3 (18 PL/m² ) and T4 (21 PL/m² ) show that during the culture period, average weight gain of the species was significant (p< 0.02) where the highest (27.53 + 0.28 g) and the lowest (22.16 + 0.44 g) weight was gained by the stocking density 12 PL/m² (T1) and 21 PL/m² (T4) respectively. The growth rate of the species also varied significantly (p<0.003). The results also showed that with the increasing of stocking density, the growth and survival rate of the species decreased although the total production (Kg/ha) increased. Simultaneously, with the increasing of total production in different treatments (with increased stocking density) the production costs also increased. It was observed that the highest (3327.5+121.5 kg/ha) and the lowest (2920.5+114.5 kg/ha) production was gained by the stocking density of 21 PL/ m² (T4) and 12 PL/m² (T1) respectively. However, the economic analysis showed that the trial with the stocking density 15 PL/m2 (T2) gained the highest (TK. 333701/ha/yr) economic return followed by the stocking 12 PL/m² (T1) while the lowest return (TK. 280788/ha/yr) came from the highest stocking density, 21 PL/m² (T4). This result indicated that increasing of stocking density may earn higher production but may not be suitable for increased economic return. Moreover, it could be a cause of economic loss.

Keywords: Tiger shrimp; Penaeus monodon; Semi-intensive; Stocking density; Economic return

Location: Semi-intensive culture farm, “Chokoria Shrimp Culture Farm”, Cox’s Bazar under the Shrimp Culture Project of Grameen Bank, Bangladesh.

Start Date:

End Date:

Program Area: Animal Health and Management

Commodity: Shrimp

Objectives:

Generally, it is observed that, with increasing production (with increased stocking density) the production costs also increase. Therefore, the present study was conducted with the view to find out the optimum stocking density that can give the maximum economic return.

Methodology:

The data for the present study was collected from a semi-intensive culture farm, “Chokoria Shrimp Culture Farm”, Cox’s Bazar under the Shrimp Culture Project of Grameen Bank, Bangladesh.

Experimental Ponds: Eight ponds of the farm were selected for the study. The size of the ponds were approximately 01 (one) hectare. All the selected ponds were prepared scientifically with same procedure. Each pond contained outlets, inlets, pumps, paddle wheels and other facilities for the maintenance of water quality required for semiintensive culture. Fries collected from both the nature and hatchery were stocked in randomly selected ponds with four stocking densities, 12, 15, 18 and 21 PL/ m² . Two replicates were used for each density. The four treatments, T1 (12 PL/m² ), T2 (15 PL/m² ), T3 (18 PL/m² ) and T4 (21 PL/m² ) were conducted for 112 days. A commercial pelleted feed, “Saudi Bangla Shrimp Feed” was used to feed the shrimps in all the ponds.

Source of Information: Khulna University Studies 2(2):

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The present study indicates that the culture environment of Penaeus monodon in Bangladesh is very suitable as growth, survival and production of the species show good performances in comparison with the results of other regions of the world. The results also showed that, with the increasing of stocking density, the growth and survival of the species decreased although total production (Kg/ha) increased. However, with increasing production (with increased stocking density) the production costs also increased. Therefore, in the present study, the economic analysis has been conducted to determine the optimum stocking density for maximum economic return that could make the farmers aware of increased economic return from semi-intensive practice. The result of the present study will be valuable to initiate the farmers to shrimp culture through a semi-intensive system and as well as to promote the culture technology in the country.

Knowledge Management: Journal