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Nursery culture of grouper (Epinephelus fuscoguttatus Forsskal) and sea bass (Lates calcarifer Bloch) in brackish water ponds: Co-feeding of zooplankton and formulated diets containing L-tryptophan

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Date
2012
Author
Gapasin, Rolando S. J.
Alava, Veronica R.
Marte, Clarissa L.
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Abstract
This study compared co-feeding zooplankton (ZP, mixed copepods and mysids) and formulated diets (FD) supplemented with L-tryptophan (TRP) on the survival and growth of grouper and sea bass fry nursed in brackish water ponds. Grouper (84 fry m−3) and sea bass (150 fry m−3) were reared for 30 days and 60 days, respectively, in net cages within two separate 743 m2 nursery ponds. Five treatments (with three replicates each) were compared (P < 0.05): FD-1 = ZP + basal FD (no added TRP, but containing 0.29% endogenous TRP); FD-2 = ZP + (FD 0.58% TRP); FD-3 = ZP + (FD 1.22% TRP); FD-4 = ZP + (FD 2.50% TRP); and FD-5 = minced fish (Sardinella sp.) + basal FD (no additional TRP). TRP supplementation in grouper diets produced no significant affect on growth but increased survival at rates of 0.58% and above. TRP supplementation at 2.5% (FD-4) produced significantly better sea bass growth than other diets but had no affect on survival. Zooplankton improved both survival and growth in both grouper and sea bass juveniles compared to the minced fish diet, and may be a practical and lower cost alternative to indoor nursing.
URI
http://hdl.handle.net/10862/2122
Suggested Citation
Gapasin, R. S. J., Alava, V. R., & Marte, C. L. (2012). Nursery culture of grouper (Epinephelus fuscoguttatus Forsskal) and sea bass (Lates calcarifer Bloch) in brackish water ponds: Co-feeding of zooplankton and formulated diets containing L-tryptophan. Journal of Applied Aquaculture, 24(3), 221-234.
DOI
10.1080/10454438.2012.679146
Subject
brackish water ASFA; diet ASFA; fish culture ASFA; growth ASFA; marine fish ASFA; minced fish ASFA; plankton surveys ASFA; ponds ASFA; processing fishery products ASFA; survival ASFA; zooplankton ASFA; dietary supplements AGROVOC; L-Tryptophan; Nursing AGROVOC; Copepoda AGROVOC; Dicentrarchus labrax AGROVOC; Lates calcarifer AGROVOC
Taxonomic term
Epinephelus fuscoguttatus GBIF; Lates calcarifer GBIF
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