| Author | Somboon |
| Call Number | AIT Thesis no. AE-94-45 |
| Subject(s) | Fish-culture
|
| Note | A thesis submitted in partial fulfillment of the requirements of
the degree of Master of Science, School of Environment, Resources & Development |
| Publisher | Asian Institute of Technology |
| Abstract | The use of rice bran as a supplementary food for nursing polycultures and
monocultures of Nile tilapi a, common carp and silver barb fry in hap as was
compared to the use of fertilizer alone. Human waste in a form of septage was
used as organic fertilizer at the rate of 150 ltg COD ha day .
Survival to 8 weeks of all species combinations, except the tilapia
monoculture, was very poor and high variable. Survival to 4 weeks was good for
all treatments but water quality, possibly exacerbated by bird predation,
subsequently reduced survival of common carp and silver barb. Poor survival
was correlated with low dissolved oxygen in the early morning to the most
sensitive species, the silver barb.
Use of septage at these rates is probably too high for nursing· carps in
monoculture or polyculture but not Nile tilapia. The high tolerance of Nile
tilapia to low, early morning dissolved oxygen was also indicated by the high
survival and production of cleaner fish stocked outside the hapas. |
| 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) | Little, David C.
|
| Examination Committee(s) | Edwards, Peter ;Yakupitiyage, Amararatne
|
| Scholarship Donor(s) | The Government of Germany (DAAD) |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1994 |