Sulphur amino acid requirement of juvenile Asian sea bass Lates calcarifer
Share
စိတ္တဇ
The dietary requirement of juvenile Asian sea bass Lates calcarifer for total sulphur amino acids was studied. Fish (average initial weight of 2.59 plus or minus 0.08 g) were reared in twelve 500 L fibreglass tanks provided with flow-through seawater at 26 degree C and salinity of 31 ppt for 12 weeks. They were fed semipurified test diets containing 6.2, 7.2, 8.1, 9.0, 10.8, or 12.6 g methionine/kg dry diet and a basal level of 3.1 g cystine/kg dry diet. The mean crude protein of the diets (containing defatted Peruvian fishmeal, squid meal, soybean meal, and free amino acid mixture to simulate the pattern of hydrolysed sea bass protein) was 46.02 %. The crude fat content of the diets was 10.51 % from a 1:1 mixture of cod liver oil and soybean oil. Survival was 100 % in all treatments. On the basis of the growth response, the total sulphur amino acid requirement of juvenile Asian sea bass was estimated to be 13.4 g/kg dry diet (2.9 % of protein). Fish fed low levels of L-methionine had significantly lower weight gains and feed efficiency ratios as well as slightly higher hepatosomatic indices. No nutritional deficiency signs were observed other than growth depression in fish fed on diets that were low in methionine. This information is valuable in further refinement of formulations of practical diets for the Asian sea bass.
Suggested Citation
Coloso, R. M., Murillo-Gurrea, D. P., Borlongan, I. G., & Catacutan, M. R. (1999). Sulphur amino acid requirement of juvenile Asian sea bass Lates calcarifer. Journal of Applied Ichthyology , 15(2), 54-58. https://doi.org/10.1046/j.1439-0426.1999.00123.x
ဘာသာရပ်
Taxonomic term
စုစည်းမှုများ စုစည်းမှုများ
- AQD Journal Articles [1222]
Related items
Showing items related by title, author, creator and subject.
-
Seabass grow-out and marketing: lessons from Australia, Malaysia, and Thailand
Buendia, Romeo (Aquaculture Department, Southeast Asian Fisheries Development Center, 1997) -
Optimized feeding strategies in the larviculture of the Asian seabass Lates calcarifer.
Dhert, Philippe.; Duray, Marietta; Lavens, Patrick.; Sorgeloos, Patrick. (Asian Fisheries Society, 1990)This paper reports on the progress made at the Tigbauan hatchery of SEAFDEC in the Philippines, with the larviculture of the Asian seabass Lates calcarifer when using w3-HUFA enriched Brachionus and Artemia . In view of ... -
Illuminated-cage nursery of the Asian sea bass, Lates calcarifer Bloch, (Centropomidae): effects of initial body size and stocking density
Fermin, Armando C. (Asian Fisheries Society; World Aquaculture Society - Southeast Asian Chapter, 2000)This study was conducted to determine the appropriate initial body size and the corresponding stocking density of sea bass, Lates calcarifer, during nursery rearing in illuminated cages. Hatchery-produced sea bass fry of ...