Assessment and recommendations for sustainable development of shrimp farming in the Mekong Delta : a case study of Baclieu Province, Vietnam | |
| Author | Duong Tri Dung |
| Call Number | AIT Thesis no.AQ-06-20 |
| Subject(s) | Shrimp culture--Vietnam--Baclieu Coastal zone management--Vietnam--Baclieu |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. AQ-06-20 |
| Abstract | A study on the shrimp farming in the coastal zone of Mekong delta was conducted to identify the current status and the main causes of failure of intensive shrimp culture and to provide recommendations for sustainable development of shrimp farming. A total of 75 households of which 70 were involved in intensive system, 3 in semi-intensive and 2 in improved extensive system were interviewed using a questionnaire. PRA workshops were organized with 8 and 13 participants in Longdiendong (LDD) village and VinhhauA (VHA) village, respectively. The number of farmers using the extensive and improved extensive systems is decreasing while that using the intensive system is increasing. The intensive farming of black tiger shrimp (Penaeus nionodon) dominates with 93% of shrimp farming systems in surveyed areas. The intensive shrimp farmers are around 40 years old, with 3-5 experience years of shrimp culture although the previous works were rice farming (91.43° ~). The number of years a farmer lived in the area was positively correlated with shrimp production of a shrimp culture household while experience was not correlated. This implies that a farmer's background knowledge of the area contributes to his success in shrimp culture than his limited experience of 3-5 years. Most of the farmers own around 1-3 hectares and the water area for intensive shrimp culture is around 1.0 hectare in which the average area of a shrimp pond is 0.46 ±0.4 ha and 0.39±0.28 ha in LDD and VHA, respectively. Lime is applied in shrimp ponds at around 3000 kg'ha, stocking density is about 15-30 seed/m' and only commercial feeds are used. Closed farming system is being applied but the farmers seldom test water quality before stocking (47.15%) and lots of chemicals are used for prevention and treatment of shrimp disease without knowledge on them, thus, shrimp disease usually appears every 2-3 years that was the main reason of shrimp culture failure. The cost for intensive farming of black tiger shrimp is too high and the intensive shrimp farmers could not recover their investment when the disease breaks three times in five years because the cumulative net cash flow (CNCF) is -68.65 MVND in such case. The intensive shrimp farming system has been developed by the farmer themselves without planning and training from extension office. It is therefore necessary to make a master plan for shrimp culture and to improve the irrigation system and provide technical support in the coastal area for sustainable development |
| Year | 2006 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. AQ-06-20 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Aquaculture and Aquatic Resources Management (AQ) |
| Chairperson(s) | Ikejima, Kou ;Gallardo, Wenresti G. (Co-chairperson) ; |
| Examination Committee(s) | Yi, Yang ;Berg, Hakan ;Ashton, Elizabeth Clare (external) ; |
| Scholarship Donor(s) | Cantho University, Vietnam; |
| Degree | Thesis (M. Sc.) - Asian Institute of Technology, 2006 |