2026-03-05T17:45:36Z https://fra.repo.nii.ac.jp/oai

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漁獲されたキジハタ天然魚の餌付け Food acclimatization of wild red-spotted grouper Epinephelus akaara under captive condition Takeuchi, Hiroyuki 834 竹内, 宏行 70704261 タケウチ, ヒロユキ Imai, Tadashi 861 今井, 正 60555267 イマイ, タダシ Morita, Tetsuo 831 森田, 哲男 30553408 モリタ, テツオ Sakiyama, Kazutaka 843 崎山, 一孝 90426312 サキヤマ, カズタカ red spotted grouper; food acclimatization; captive condition; broodstock culture We investigated the period until diet acceptance in the wild red-spotted grouper Epinephelus akaara under captive condition. Experiments were conducted under three dietary treatments: two commercial diets, floating pellet (FP) and sinking pellet (SP), and combination of SP and sliced fish (SP+SF). We repeated the observation twice using different-sized fish with average initial body weights 390 g (n = 23) and 290 g (n = 18), respectively. The fish accepted SP and SP+SF within four days both in the two trials. In the SP + SF treatment, fish accepted SF at first and then fed on SP 12-days later in the large fish and 3-days later in the small fish, respectively. The first feeding of large fish on FP (11-days) was later than small fish (4-days). Therefore, wild red-spotted grouper is recommended to feed the SF or SP. article アクオス研究所 2022-03 VoR application/pdf 水生動物 2022 Aquatic Animals 2434-8643 https://fra.repo.nii.ac.jp/record/97/files/10055978.pdf https://fra.repo.nii.ac.jp/records/97 jpn 10.34394/aquaticanimals.2022.0_aa2022-4 Fraism 10055978 水生動物 https://www.doi.org/10.34394/aquaticanimals.2022.0_aa2022-4