Tryptophan requirement of juvenile Asian sea bass Lates calcarifer
Cited times in Scopus
The dietary requirement of tryptophan for juvenile Asian sea bass (Lates calcarifer Bloch) was studied. The juveniles (mean initial weight, 5.30 ± 0.06 g) were given semi-purified test diets containing fish meal, gelatin, squid meal, and crystalline amino acids, for 12 weeks. Each set of isonitrogenous and isocaloric test diets contained graded levels of tryptophan. Fish (15 per tank) were reared in 250-L fiberglass tanks provided with continuous flow-through sea water at 26°C and salinity of 28 p.p.t. Fish were fed twice daily at a feeding rate of 8% of the body weight day−1 for the first 4 weeks and at 3.5–2.5% of the body weight day−1 from 5 to 12 weeks. The experiment was in a completely randomized design with two replicates per treatment. Mean percentage weight gains and feed efficiency ratios were significantly different in fish fed varying tryptophan levels. Survival was 100% in all treatments. On the basis of break-point analysis of the growth response, the dietary tryptophan requirement of juvenile Asian sea bass is 0.41% of the dietary protein. This information will be useful in further refinement of practical feed formulations for the Asian sea bass.
Suggested CitationColoso, R. M., Murillo-Gurrea, D. P., Borlongan, I. G., & Catacutan, M. R. (2004). Tryptophan requirement of juvenile Asian sea bass Lates calcarifer.
- AQD Journal Articles 
Showing items related by title, author, creator and subject.
Studies on the nursery rearing of seabass, Lates calcarifer (Bloch) fry in illuminated floating net cages Fermin, Armando C.; Bolivar, Ma. Edna C.; Gaitan, Albert (Ministry of Agriculture and Water; King Abdulaziz City for Science and Technology; Riyadh Chamber of Commerce and Industry, 1994)The feasibility of rearing seabass, Lates calcarifer, fry for fingerling production in illuminated floating nursery cages was determined. In experiment 1, seabass fry of 20.0 mm mean TL were stocked at 600 and 1200 in 1 ...
Larval intervals of the sea bass, Lates calcarifer, based on the development of swimming and feeding functions. Kohno, H.; Duray, M.; Ohno, A.; Taki, Y. (Asian Fisheries Society, 1994)Developmental sequences of characters concerned in swimming and feeding function were examined on laboratory-reared seabass larvae. Based on a scheme of development events constructed in this study, the early life hisory ...
Garcia, LM (Asian Fisheries Society, 1994)Recent advaces in the spontaneous and hormoneinduced breeding of caged sea bass (Lates calcarifer bloch, Family Centropomidae) are reviewed. Spontaneous spawnings follow a semilunar rhythm, with most spawings accurring in ...