Changes of phosphorus absorption from several feed ingredients in rainbow trout during growing stages and effect of extrusion of soybean meal.
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- SATOH SHUICHI
- Laboratory of Fish Nutrition, Tokyo University of Fisheries
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- TAKANEZAWA MINORU
- Laboratory of Fish Nutrition, Tokyo University of Fisheries
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- AKIMOTO ATSUSHI
- Marine Farming R&D Center, Nippon Formula Feed Manufacturing Company
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- KIRON VISWANATH
- Laboratory of Fish Nutrition, Tokyo University of Fisheries
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- WATANABE TAKESHI
- Laboratory of Fish Nutrition, Tokyo University of Fisheries
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Abstract
The absorption of phosphorus (P) contained in several feed ingredients by rainbow trout was compared during the growing stages of the fish. The ingredients tested were pollock meal, sardine meal, poultry feather meal (PFM), meat and bone meal (MBM), defatted soybean meal (SBM), soy protein concentrate (SPC), corn gluten meal (CGM), and defatted soybean meal extruded at 150°C (exSBM). Phosphorus absorption was determined for fish of sizes 2 g, 5 g, 10 g, 20 g, 50 g, 100 g, and 200 g. Absorption of P from the two fishmeals slightly decreased as bodyweight increased. Conversely, P absorption from PFM and the plant ingredients was very low by the 2 g fish, but increased during the early growth stages and seemed to have reached a plateau in fish bigger than 10 g. Absorption from exSBM was much higher than that from SBM at all bodyweights examined. Phosphorus absorption from the different ingredients were: pollock meal 31-46%; sardine meal 49-59%; MBM 36-46%; PFM 36-84%; SBM 3.4-37%; exSBM 25-58%; SPC 3.7-34%; and CGM, 0-17%. The results demonstrate that, depending on the ingredient P absorption in rainbow trout changes as the fish grows. Extrusion cooking at 150°C improved the availability of P in SBM.
Journal
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- Fisheries science
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Fisheries science 68 (2), 325-331, 2002
The Japanese Society of Fisheries Science
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Details 詳細情報について
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- CRID
- 1390282679405964032
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- NII Article ID
- 130003742450
- 10008273126
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- NII Book ID
- AA10993718
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- ISSN
- 14442906
- 09199268
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- NDL BIB ID
- 6151944
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed