Supplemental Effect of Astaxanthin in Broodstock Diets on the Quality of Yellowtail Eggs
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- Verakunpiriya Visuthi
- Laboratory of Fish Nutrition, Department of Aquatic Biosciences, Tokyo University of Fisheries
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- Mushiake Keiichi
- Komame Station of Japan Sea-Farming Association
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- Kawano Kazutoshi
- Komame Station of Japan Sea-Farming Association
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- Watanabe Takeshi
- Laboratory of Fish Nutrition, Department of Aquatic Biosciences, Tokyo University of Fisheries
書誌事項
- タイトル別名
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- Supplemental Effect of Astaxanthin in B
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抄録
Different levels of pure astaxanthin (0, 20, 30, and 40 ppm) were supplemented in soft-dry pellets (SDP), in order to clarify the effect of this carotenoid on the quality of eggs and spawning performance of yellowtail. Three-yearold fish of average body weight 6.1kg were separatelyfed one of each test diet. The feeding experiment was carried out in cages for about 5 months prior to spawning. Seven males and 7 females from each test diet group were transferred to 65m3 indoor spawning tanks to permit them to spawn spontaneously, while those which remained in the cages were artificially inseminated. Fish of both spawning investigations were induced to maturity by HCG injection (600 IU/kg-fish).<br> When the brood fish were allowed to spawn spontaneously, those fed SDP supplemented with 30 ppm astaxanthin gave superior results for total production, quality of eggs and the final number of normal larvae. These observations were identical to those from the artificially inseminated group. Thus, the supplementation of astaxanthin in SDP was found to be effective for broodstock yellowtail and seemed to be optimal at around 30 ppm (30mg/kg-diet); beyond which the qualityof eggs diminished.
収録刊行物
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- Fisheries science
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Fisheries science 63 (5), 816-823, 1997
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
- 1390282679406041216
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- NII論文ID
- 130003903089
- 10004871802
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- NII書誌ID
- AA10993718
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- NDL書誌ID
- 4326640
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- ISSN
- 09199268
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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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- 抄録ライセンスフラグ
- 使用不可