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Titolo:
The influence of dietary protein sources on tissue free amino acid levels of fingerling rainbow trout
Autore:
Yamamoto, T; Unuma, T; Akiyama, T;
Indirizzi:
Natl Res Inst Aquaculture, Inland Stn, Fish Feed Sect, Tamaki, Mie 5190423, Japan Natl Res Inst Aquaculture Tamaki Mie Japan 5190423 ki, Mie 5190423, Japan Natl Res Inst Aquaculture, Coastal Stn, Reprod Technol Sect, Nansei, Mie 5160193, Japan Natl Res Inst Aquaculture Nansei Mie Japan 5160193 ei, Mie 5160193, Japan Natl Res Inst Fisheries Sci, Res Coordinating Sect, Kanagawa 2368648, Japan Natl Res Inst Fisheries Sci Kanagawa Japan 2368648 nagawa 2368648, Japan
Titolo Testata:
FISHERIES SCIENCE
fascicolo: 2, volume: 66, anno: 2000,
pagine: 310 - 320
SICI:
0919-9268(200004)66:2<310:TIODPS>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
NINHYDRIN-POSITIVE SUBSTANCES; SALMO-GAIRDNERII RICHARDSON; ONCORHYNCHUS-MYKISS; POSTPRANDIAL CHANGES; FISH-MEAL; PLASMA; METHIONINE; METABOLISM; YELLOWTAIL; CYSTINE;
Keywords:
diet; fish meal; free amino acids; malt protein flour; Oncorhynchus mykiss; soybean meal; tissue;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Yamamoto, T Natl Res Inst Aquaculture, Inland Stn, Fish Feed Sect, Tamaki,Mie 5190423, Japan Natl Res Inst Aquaculture Tamaki Mie Japan 5190423 423, Japan
Citazione:
T. Yamamoto et al., "The influence of dietary protein sources on tissue free amino acid levels of fingerling rainbow trout", FISHERIES S, 66(2), 2000, pp. 310-320

Abstract

To estimate the quantitative adequacy of amino acids in practical dietary proteins, free amino acid (FAA) levels in various tissues of rainbow trout Oncorhynchus mykiss fed different protein sources were compared. Four diets, the proteins of which were derived mainly from fish meal (FM diet), soybean meal (SBM diet), malt protein flour (MPF diet), and the combination of SBM and MPF (COMB diet), were fed to duplicate groups (30 fish/group, 10 g/fish) for 6 to 9 weeks at 15 degrees C, until each treatment group reached the weight of the FM diet group attained in 6 weeks. The fish for FAA analysis were sampled 12 h after the last feeding. The body weight of the FM group was attained in 7 weeks by the COMB diet group, and in 9 weeks by the SBMand the MPF diet groups. Concentrations of free threonine, methionine, andlysine in most of the tissues of the COMB diet group, as well as the SBM and the MPF diet groups, were quite lower than those of the FM diet group. Levels of these amino acids between the four diets and most of the tissues examined were highly correlated. Although the threonine content in the COMB diet was slightly lower than the FM diet, these findings suggest that not only methionine and lysine but also threonine is still insufficient in the COMB diet.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 16/07/20 alle ore 06:42:20