Nutritive Value of Gelatinized Corn Meal as a Carbohydrate Source to Grass Carp and Hybrid Tilapia Oreochromis niloticus×O.aureus
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- Takeuchi Toshio
- Department of Aquatic Biosciences, Tokyo University of Fisheries
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- Hernández Martha
- Department of Aquatic Biosciences, Tokyo University of Fisheries
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- Watanabe Takeshi
- Department of Aquatic Biosciences, Tokyo University of Fisheries
書誌事項
- タイトル別名
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- Nutritive Value of Gelatinized Corn Meal as a Carbohydrate Source to Grass Carp and Hybrid Tilapia <i>Oreochromis niloticus×O. aureus</i>
- Nutritive Value of Gelatinized Corn Mea
- Nutritive Value of Gelatinized Corn Meal as a Carbohydrate Source to Grass Carp and Hybrid Tilapia <i>Oreochromis niloticus×O. aureus</i>
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The effect of extrusion on the nutritional value of corn meal for grass carp Ctenopharyngodon idella and hybrid tilapia Oreochromis niloticus×O. aureus fingerlings was studied. Raw and extruded corn meal were mixed in five proportions at a 50% level in the diet, with a gelatinized ratio (GR) ranging from 29 to 100%.<br> The apparent starch digestibilities improved gradually by increasing the GR level. The energy digestibility was slightly improved in grass carp, while it was almost constant in tilapia. The percent gain, feed efficiency and protein efficiency ratio improved smoothly by increasing the GR level. However, the feed efficiency was still high (114% for grass carp and 119% for tilapia) even in the fish fed on a diet with raw corn meal. In tilapia, the daily feed consumption was not related to the GR. In the whole body composition, an increase of lipid content was observed with an increase of GR.<br> A gradual increase in gelatinization thus improves gradually the nutritive value of corn meal for grass carp and tilapia. However, the effect is not so strong. Both species are good at utilizing corn meal, even in its raw form and at a high concentration, particularly tilapia.
収録刊行物
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- Fisheries science
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Fisheries science 60 (5), 573-577, 1994
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
- 1390001204428373248
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- NII論文ID
- 130003741934
- 40005348365
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- NII書誌ID
- AA10993718
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- NDL書誌ID
- 3644396
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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