TY  - BOOK
AU  - Somboon
AU  - Little,David C.
AU  - Edwards,Peter
AU  - Yakupitiyage,Amararatne
ED  - The Government of Germany (DAAD), 
TI  - A comparison of different species ratios in the nursing of three species of freshwater fish in nylon hapas suspended in earthen ponds
T2  - Thesis
PY  - 1994///
CY  - Bangkok
PB  - Asian Institute of Technology
KW  - Fish-culture
N1  - A thesis submitted in partial fulfillment of the requirements of  the degree of Master of Science, School of Environment, Resources & Development; Thesis (M.Sc.) - Asian Institute of Technology, 1994
N2  - 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
UR  - http://203.159.5.9/ait-thesis/detail.php?q=B15598
ER  -