Effects of marine-based protein sources feed and amino acid supplementation on feeding response of slipper lobster Thenus orientalis
Although fish meal (FM) is a common ingredient in aquaculture feeds, lobsters often reject these formulated feeds. Attractants can help improve feed intake in crustaceans. In this study, the response of Thenus orientalis to different protein sources and amino acids was investigated. T. orientalis wa...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | en |
| Published: |
Elsevier B.V.
2025
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| Subjects: | |
| Online Access: | https://eprints.ums.edu.my/id/eprint/44464/1/FULL%20TEXT1.pdf https://eprints.ums.edu.my/id/eprint/44464/ https://doi.org/10.1016/j.ejar.2025.05.006 |
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| Summary: | Although fish meal (FM) is a common ingredient in aquaculture feeds, lobsters often reject these formulated feeds. Attractants can help improve feed intake in crustaceans. In this study, the response of Thenus orientalis to different protein sources and amino acids was investigated. T. orientalis was fed with marine-based proteins (FM, Acetes meal (AM), scallop meal (SM), and squid meal (SQM)) and amino acids (L-glutamic acid monosodium salt monohydrate (GlA), betaine (Bet) and glycine (Gly)) at different inclusion levels. The total intake rate (TIR) for each diet was calculated using behavioural tests. T. orientalis favoured the SQM diet with a TIR of 100%, but chemoattractants reduced the TIR, especially in the SQM diet. The amino acid interactions in SQM diets were promising. Differences between amino acid additions within AM diets were insignificant; however, the combination of GlA and Gly added to the AM diet promoted better TIR compared to other treatments. The SQM diet alone was effective, while diets enriched with amino acids had different effects. The study suggests amino acid combinations in different protein sources influence T. orientalis feeding behaviour. |
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