TY  - SER
AU  - Husain,A.K.M.Akhter
AU  - Lin,Chang Kwei
AU  - Wee,Kok Leong
AU  - Little,David C.
ED  - British Council, 
TI  - First feeding of walking catfish (Clarias macrocephalus)
T2  - Thesis
PY  - 1988///
CY  - Bangkok
PB  - Asian Institute of Technology
KW  - Fish-culture
KW  - Catfishes
N1  - A Thesis submitted in partial fulfilment of the requirements for the degree of Master of Science, School of Environment, Resources and Development; Thesis (M.Sc.) - Asian Institute of Technology, 1988
N2  - Five experiments were conducted to elucidate the first feeding of  walking catfish( Clarias macrocepha lus).  Moina macrocopa feeding on heterotrophs and autotrophs were ana lysed  separately, their proximat e composition was 70% protein ,12% crude fat,5%  ash, and its wet biomass contained 90% moisture. Fry feeding rate was  determined on five Mo i na densities (10, 25, 50, 100 and 150 Moina) per  fry of different ages ( 5, 10 and 15 days), their gastric evacuat ion rate  was determined at time intervals of 10, 30, 60 and 120 minutes. The  feeding rate of 5-, 10- and 15-day old fry was 12.4, 12.2 and 40.7 Moina  /fry/feeding , respectively. Feeding r ate and gastric evacuation rate  increased with increasing f ry age.  Rea ring of Clarias fry wi th different diets (live Moina, frozen Moina,  dried Moina , beef liver plus fish flesh and Powder feed indicates that  it is impractical to r ear Clarias fry with avail able artificial diets as  first feed because of low survival . Fry survival with l ive Moina feed was  79%, frozen Moina 40%, powder feed 17% and the dried Moina and Beef liver  were 0% during a 15 -day rearing period.  Survival and growth rates were determined for Clarias fry fed on live  Moina for different time periods (5, 8 and 10 days) and then reared the  same fry with four experimental diets for 15,12 and 10 days, r espectively.  Average fry daily feeding rate was live Moina 34% and 30% artificial diets  (dry wt.basis) of body weight. Fry fed with live Moina produced maximum  survival rate , growth rate and feed conversion ratio among all the diets  tested. Clarias fry were reared at 5 different densities (10, 25 , 50,  100 and 250 fry/L) in recirculated wate r system show that fry growth rate  and survival were not significant ly different among various stocking  density
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ER  -