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| Registros recuperados: 101 | |
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| Миронов, О. Г.; Гапонюк, Т. О.; Муравьева, И. П.; Замыслова, Т. Н.. |
| В прибрежных наносах линии уреза северного побережья Севастопольской бухты впервые определено содержание белков, аминокислот и углеводов. Установлено преобладание количества белков над углеводами, в то время как в море в целом преобладают углеводные соединения. Если в целом в Севастопольской бухте наблюдаются сезонные колебания концентрации органических веществ, то в условиях наносов, постоянно омывающихся морской водой, сезонная динамика не наблюдается. Отношение концентрации углеводов к белку в наносах составляет десятые и сотые доли, что в десятки раз ниже, чем в поверхностном слое грунтов как открытого моря, так и бухт. Средняя концентрация белков и углеводов в наносах выше, чем в грунтах того же механического состава. |
| Tipo: Journal Contribution |
Palavras-chave: Белки; Аминокислоты; Углеводы; Прибрежные наносы; Черное море; Proteins; Amino acids; Carbohydrates; Marine deposits; Littoral zone; Black Sea Littoral zone Carbohydrates Amino acids Proteins Carbohydrates Amino acids Proteins http://aims.fao.org/aos/agrovoc/c_1300 http://aims.fao.org/aos/agrovoc/c_342 http://aims.fao.org/aos/agrovoc/c_6259. |
| Ano: 2003 |
URL: http://repository.ibss.org.ua/dspace/handle/99011/157 |
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| Dias, Jorge; Gomes, Ef; Kaushi, Sj. |
| The incorporation of an attractant mixture by substitution of an equivalent amount of basal dietary mixture was studied in terms of feed intake and growth performance in European seabass juveniles (mean initial weight : 17 g) fed plant-protein rich diets during 21 days. Three diets had as main protein sources; fish meal, or one of two soy protein concentrates (S and E). To the basal mixture of these last two diets, as well as to a corn-gluten based diet, an attractant amino acid mixture was added at a 2.5% level. Daily feed intake was measured throughout the experimental period. Feed intake and weight gain were highest in seabass fed the fish meal based diet. In those fed the soy protein concentrate diets, the addition of the attractant mixture improved... |
| Tipo: Text |
Palavras-chave: Dicentrarchus labrax; Plant proteins; Feed intake; Amino acids; Feed attractants. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/00335/44653/57337.pdf |
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| Medale, Francoise; Kaushik, Sadasivam. |
| Fish require diets containing 30 to 55% of crude protein and an amino acid supply precisely adapted to meeting the needs for optimal growth. Fish meal is an ideal protein source for aquafeed because it has a high protein level (65% to 72%) with an ideal proportion of all ten indispensable amino acids that meet the requirements of all fish species. However, finding alternatives to fish meal has become an absolute necessity in order to reduce the reliance of aquaculture on marine ingredients. Animal by-product meals (meat meal, bone meal, blood meal, poultry by-product meal, hydrolysed feather meal) are used as alternative protein sources in aquafeed in extra-European countries. Since the use of animal protein in aquafeed is forbidden in Europe (except non... |
| Tipo: Text |
Palavras-chave: Plant proteins; Fish meal; Fish feeding; Antinutritionnal factors; Amino acids. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6556.pdf |
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| Hermin, M; Daumas, R; Drogue, N. |
| The bacterial activity of the superficial sediment layer was evaluated by incorporation super(14)C-labelled amino-acids mixed an hydrolysate of chlorella cells. Estimation of super(14)C-CO sub(2) super(14)C and super(14)C-A.A. by H.P.L.C. give some informations on the utilization of free dissolved. A.A. and on the transport of labelled compounds from water to sediment. The adsorption mechanism of A.A. on the mineral particles draw to the sediment a larger part of A.A. in the first period; but 28% of this adsorbed A.A. were discharged by an acid treatment. A part of super(14)C-A.A. was incorporated in unhydrolysable organic matter. Di-COOH A.A. are more resistant to bacterial degradation than the other A.A., but arginine is completely metabolized in ten... |
| Tipo: Text |
Palavras-chave: Biogeochemistry; Bacteria; Chromatographic techniques; Metabolism; Amino acids; Sediment water exchanges. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/acte-945.pdf |
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| Jennerjahn, Tc; Ittekkot, V. |
| The nature of sedimentary organic matter from mangroves and the continental margin of eastern Brazil (8 degrees-24 degrees S) has been investigated in order to obtain information on sources and diagenetic processes. The organic matter content of mangrove sediments is three to four times higher than the maximum content of continental margin sediments. Downslope distribution of organic carbon, nitrogen, amino acids and hexosamines shows an enrichment in water depths between 800 m and 1000 m. The distribution of individual amino acids and hexosamines is highly variable in sedimentary organic matter from mangroves and the continental margin, and the observed compositional differences are mainly due to diagenetic alteration. Organic matter is highly reactive in... |
| Tipo: Text |
Palavras-chave: Organic carbon; Amino acids; Carbon cycle; Mangroves; Continental margin. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/00093/20403/18070.pdf |
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| Registros recuperados: 101 | |
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