Quality evaluation of different types of non-fish meal diets for yellowtail.
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- WATANABE TAKESHI
- Department of Aquatic Biosciences, Tokyo University of Fisheries
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- AOKI HIDEO
- Owase Branch, Fisheries Research Institute of Mie Fisheries Research Institute of Mie
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- WATANABE KANAKO
- Department of Aquatic Biosciences, Tokyo University of Fisheries
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- MAITA MASASHI
- Department of Aquatic Biosciences, Tokyo University of Fisheries
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- YAMAGATA YOICHI
- Owase Branch, Fisheries Research Institute of Mie
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- SATOH SHUICHI
- Department of Aquatic Biosciences, Tokyo University of Fisheries
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Two feeding experiments were conducted to evaluate the feed quality of non-fish meal diets having the same protein ingredient composition but prepared as different types, and to determine the supplemental effect of crystalline essential amino acids (EAA) on feed utilization by young yellowtail, Seriola quinqueradiata. Non-fish meal diets formulated with soy protein concentrate, defatted soybean meal, corn gluten meal, meat meal, and krill meal were prepared as either soft dry pellets (SDP) or extruded pellets (EP) by using a large- or a small-sized twin screw extruder under different preparation conditions; or as a single moist pellet (SMP), each with and without EAA mixtures. Commercial yellowtail SDP was used as the control diet. Fish weighing 134 g and 237 g on average were reared with the experimental diets, for 93 (net cages) and 44 (aquariums) days, respectively. The fish fed both the control and test diets were found to have a good appetite. Growth rate and feed gain ratio were highest in the control diet group. The physiological condition of fish fed the control diet was evaluated as superior compared to those on the non-fish meal diets. Among the non-fish meal diet groups, the best performances were obtained for fish fed the SDP type diet with EAA supplement, and performance parameters excelled in the order of SDP, EP and SMP both among the diets with and without supplemental EAA. This suggests that the nutritional quality of non-fish meal diet was affected by the diet preparation method. It also indicates that supplementation of EAA could improve the quality of non-fish meal diets, irrespective of the diet type, probably as a result from the enhancement of feed protein utilization.
収録刊行物
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- Fisheries science
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Fisheries science 67 (3), 461-469, 2001
公益社団法人 日本水産学会
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詳細情報 詳細情報について
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- CRID
- 1390001204429081984
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- NII論文ID
- 130003903562
- 30014677661
- 10008269259
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- NII書誌ID
- AA10993718
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- COI
- 1:CAS:528:DC%2BD3MXltVKjsLY%3D
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- ISSN
- 14442906
- 09199268
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- NDL書誌ID
- 5813208
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 使用不可