A comparison of the growth performance and body composition of the humpback grouper, Cromileptes altivelis fed on farm-made feeds, commercial feeds or trash fish

Rossita Shapawi and Saleem Mustafa and Ng, Wing-Keong (2011) A comparison of the growth performance and body composition of the humpback grouper, Cromileptes altivelis fed on farm-made feeds, commercial feeds or trash fish. Journal of Fisheries and Aquatic Sciences, 6. pp. 523-534. ISSN 1816-4927 (P-ISSN) , 1996-0751 (E-ISSN)

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Abstract

Development of pelleted feed for cultured fish is an important aspect in aquaculture industry. Two farm-made feeds were formulated with a blend of alternative ingredients (poultry by-product meal and palm oil) in the place of marine fish meal and fish oil and fed to humpback grouper (Cromileptes altivelis) fingerlings (4.1±0.1 g) for 14 weeks. The performance of the poultry by-product-based farm-made feeds was compared with a local commercial marine fish feed, an imported commercial marine fish feed and with trash fish (Sardinella spp.). Growth performance of groupers fed the farm-made feeds was better than or comparable to fish fed the commercial feeds or trash fish. Feed Conversion Ratios (FCR) in fish fed pelleted feeds (1.3 to 2.4) were significantly better than the FCR of fish fed trash fish (5.0). The survival rate of fish fed trash fish (50%) was significantly lower compared to other fish groups which had a survival rate of more than 95%. Body proximate and fatty acid composition of the fish at the end of the feeding trial reflects the composition of the diet. The present study showed that not all marine fish feeds are of equal quality but when correctly formulated to meet the requirements of humpback grouper, pelleted feeds consistently give better performance compared to a diet of trash fish. Therefore, switching from trash fish to pelleted feeds is highly recommended for grouper farmers.

Item Type: Article
Keyword: Grouper , Commercial feeds , Farm-made feeds , Grouper , Poultry by-product meal , Trash fish
Subjects: S Agriculture > SH Aquaculture. Fisheries. Angling > SH1-691 Aquaculture. Fisheries. Angling > SH20.3-191 Aquaculture > SH151-179 Fish culture
Department: INSTITUTE > Borneo Marine Research Institute
Depositing User: SAFRUDIN BIN DARUN -
Date Deposited: 20 Sep 2021 10:37
Last Modified: 20 Sep 2021 10:37
URI: https://eprints.ums.edu.my/id/eprint/29069

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