| Author | Thakur, Dhirendra Prasad |
| Call Number | AIT Thesis no.AE-96-22 |
| Subject(s) | Shrimp culture--Environmental aspects
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of
Master of Science |
| Publisher | Asian Institute of Technology |
| Abstract | A total nutrient budget was analyzed for intensive culture in a closed system for shrimp (Penaeus monodon). The experiment was conducted to determine effect of stocking density (25 and 50/m2 ) and bottom substrate on nutrient regime, water quality and shrimp growth performance in 4m2 concrete tanks for 70 days. In the total nutrient budget shrimp feed accounted for 76.11-90.37% of the nitrogen and 69.35-88.68% of the phosphorus inputs; shrimp assimilated 20.99-27.96% of nitrogen and 10.07-12.69% of phosphorus inputs. The major portion of nutrients were accumulated in the sediment ranging between 28.78-52.86% for nitrogen and 41.29-66.92% for phosphorus inputs. The drained water during harvest contained 13.24-28.70% of nitrogen and 12.32- 32.86% of phosphorus inputs. There were no significant differences between the treatments in total ammonia nitrogen and nitrite nitrogen concentration in water. Total nitrogen and total phosphorus in water increased with time as culture progressed. Total nitrogen and total phosphorus in the culture system were linearly correlated to the total feed input. Survival and FCR ranged between 48- 84% and 1.3 -2.1 and were not significantly (P>0.05) different among the treatments. Weight gain and production ranged between 7.50-11.60g and 15.1-63.3 kg/ha/day and were significantly higher (p<0.05) for the higher stocking density. |
| Year | 1996 |
| 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 | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Lin, Chang Kwei; |
| Examination Committee(s) | Hambrey, John;Sunantar Setboonsarng; |
| Scholarship Donor(s) | DANIDA; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1996 |