Integration of catfish (Clarius macrocephalus) cage culture with tilapia in earthen pond | |
| Author | Charearn Udomkarn |
| Call Number | AIT Thesis no. AE-89-39 |
| Subject(s) | Tilapia Fish-culture Catfishes |
| 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 |
| Abstract | An experiment on catfish ( Clarias macrocephalus } cage culture integrated with tilapia species was carried out in 8 cages and 3 earthen ponds . for 16 weeks. The effects of catfish stocking density on growth rate, survival rate and production of catfish and tilapia were investigated. Catfish fingerlings (average 24 g ) were stocked in 8 cages (0.9 x 1 . 1 x 0 .9 m3 /cage ) at the density of 100 and 200 fish I m2 • Four cages were suspended in t h e first pond which stocked 200 tilapia fingerlings and another four cages in the second pond without tilapia. Two hundred tilapia fingerlings were stocked in the third pond which received chicken manure and urea weekly, as the control. Catfish were fed with commercial floating pellets twice daily at 390 of fish body weight per day. Results of fish production showed no significant ( P < 0.05) differences in daily weigh t gain, percentage weight gain, specific growth rate, survival rate, and food conversion ratio of catfish stocked at different density . Production of catfish was significantly higher at stocking density of 200 fish / m2 (16 . 7 kg/m 2 ) than 100 fish /rn2 (8.6 Ji;:g/m2 ) • There were significant ( P < 0 . 05 ) differences in daily weight gain, percentage weight gain and specific growth rate o f catfish at different conditions (ie., integration and nonintegrating with tilapia ) but no significant differences in survival rate , production and food conversion ratio. Tilapia fed on wastes from catfish culture gave higher production ( 26 kg/200 m2 } than tilapia reared on chicken manure ( 8 . 75 kg/m2) . |
| Year | 1989 |
| Type | Thesis |
| School | School of Environment, Resources, and Development |
| 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) | Knud-Hansen, Christopher F. ;Little, David C. ; |
| Scholarship Donor(s) | Canada International Development Agency (CIDA ) ; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1989 |