| Author | Nguyen Minh Nien |
| Call Number | AIT Thesis no. AE-94-32 |
| Subject(s) | Shrimp culture--Vietnam, Central
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master
of Science, School of Environment, Resources & Development |
| Publisher | Asian Institute of Technology |
| Abstract | This study attempted to review and survey the current status, constraints of shrimp
seed production in Central Vietnam, and the potential for further development.
The survey was done by a systematic sampling of shrimp hatcheries for collecting
primary data. There were about 300 hatcheries in Central Vietnam of which the small scale
operators were predominant. The interview was carried out with 112 hatcheries comprising
13 in Danang city, 25 in Quinhon city and 74 in Khanhhoa province. Those were
considered the main areas of shrimp seed production in Vietnam. Although the basic
elements of hatchery technology have been applied into Vietnam since the beginning of
1970s, it is still a new, diverse and highly risky business. As most of hatcheries are less
than 5 year old, it indicated the recent rapid development of the shrimp seed production in
Vietnam. This study suggests that under the present conditions in Vietnam, the small size
hatcheries with a total volume of larviculture tanks of 20-25 m3
, are more suitable to
management and economically viable. The water supply is becoming a severe problem in
the next years because of waste disposal from hatcheries without treatment. Most
wastewater is drained to sea (83 %). Deterioration of water quality and transmission of
diseases are unavoidable. The survey of hatcheries shows that 35 % of hatcheries were
operating at a loss in 1993. There are certain constraints for shrimp seed production in
Vietnam: (1) Diseases, (2) Water pollution, (3) Broodstock supply, (4) careless use of drugs
and chemicals, ( 5) Quality of feeds and chemicals, ( 6) High cost of imported goods. The
priorities for improvement are: (1) Disease prevention and treatment, (2) Water treatment
and pollution control, (3) Broodstock supply. Several recommendations were put forward
for the development of the shrimp seed production in Central Vietnam. |
| Year | 1994 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Lin, Chang Kwei
|
| Examination Committee(s) | Little, David C. ;Szyper, James P.
|
| Scholarship Donor(s) | The Royal Danish Government |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1994 |