Consulta: subjectFacets:"Food absorption"
Registros recuperados: 6
Data/hora: 01/06/2024 12:38:07

Nutriments et biomasse microalgale de l'interface eau-glace au large de Kuujjuarapik, Baie d'Hudson, Arctique Canadien
Provedor de dados: 5
Autores: Maestrini, S; Rochet, M; Legendre, L; Demers, S.
Nutrient analyses were done in melted ice, frazil and sea water of the upper part of the water column, where as major constitutive elements of micro-algae were analysed. Measurements of nutrient uptake were carried out with frazil algae incubated at -1.5 degree C in a field incubator. Differential-enrichment bioassays and mean N/P ratio (5.9) demonstrated that actual growth of the cultures was nutrient-limited. Nitrogen governed the algal yield when illumination and grazing allowed the microalgae to grow. It concluded that the epontic dynamics is not only controlled from above, by the seasonal (climatic) changes in light intensity as generally assumed, but also from below, by the short-term (hydrodynamic) events of vertical mixing that replenish the...
Tipo: Text
Palavras-chave: Nutritive value; Growth; Food absorption; Algae; Ice water interface; Biomass; Nutrients (mineral).
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/acte-1533.pdf

Nutrition phosphoree chez Chondrus crispus (Rhodophycees)
Provedor de dados: 5
Autores: Chopin, T; Floc'H, J; Bodeau, B; Penot, M.
Phosphorated nutrition of the red alga Chondrus crispus Stackh. is studied is two morphologically very dissimilar forms of the thallus. Phosphorus measurements, which were monthly carried out at different parts of the alga, showed first that the distribution of this element is not homogeneous along the thallus, and second that seasonal variations occur. It is suggested that the classical polymorphism of the species can be taken into account as concerns its physiology. Besides, from absorption and exsorption experiments which were performed with super(32)P as a tracer, it is shown that the high concentration factor of phosphorus in the alga as compared to the environmental seawater (up to 17.9 x 10 super(4)) can be explained as an effect of metabolic process.
Tipo: Text
Palavras-chave: Chondrus crispus; Algae; Distribution; Metabolism; Seasonal variations; Food absorption; Phosphorus; Plant nutrition.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1175.pdf

Nutrition of the seabass Lates calcarifer
Provedor de dados: 5
Autores: Cuzon, Gerard; Chou, R; Fuchs, Jacques.
The Primary Production Department of Singapore (PPD) studies covered the weaning of seabass from fingerlings stage onwards and the dietary protein requirement of early grow-out fish. Dietary protein requirement of early grow-out seabass was demonstrated to be between 40-50%, at dietary lipid level of 12%, using fishmeal protein. Nevertheless fish growth was significantly higher with trashfish feed, but apparent protein retention was significantly better with formulated feed.
Tipo: Text
Palavras-chave: Lates calcarifer; Fry; Nutritional requirements; Biochemistry; Food absorption; Growth rate; Fish meal; Seed (aquaculture); Dietary deficiencies; Fingerlings; Lipids; Proteins; Diets; Pellet feeds.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1425.pdf

L'absorption intestinale des lipides chez la truite arc-en-ciel (Salmo gairdneri )
Provedor de dados: 5
Autores: Vernier, J; Sire, M.
Though the absorption of dietary lipids is much slower in S. gairdneri than in mammals, the mechanism does not differ fundamentally. The long chain fatty acids resulting from intraluminal hydrolysis are esterified by the epithelial cells and transferred as VLDL-like particles and chylomicrons to lymph. The size of granules depends on the nature of the ingested fatty acids. The intracellular stages of this lipoprotein synthesis are defined.
Tipo: Text
Palavras-chave: Salmonidae; Pisces; Lymph; Fatty acids; Nutrition; Lipoproteins; Lipids; Intestines; Food absorption; Metabolism.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1245.pdf

Growth factors in Penaeid shrimp feeding
Provedor de dados: 5
Autores: Guillaume, Julien; Cruz, R; Cuzon, Gerard; Wormhoudt Van, A; Revol, A.
Some nutrients known as non essential in vertebrates could be essential in invertebrates and could be related to some "unknown growth factors" which were evidenced or suspected, mainly in mollusc or crustacean flesh or meal, by several authors working on different species of crustaceans. A set of experiments was carried out in our laboratory in order to isolate one of these factors found in squid meal.
Tipo: Text
Palavras-chave: Penaeus japonicus; Food absorption; Digestive system; Haemolymph; Amino acids; Glucose; Digestion; Enzymes; Experimental research; Feeding; Shrimp culture; Laboratory culture.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1464.pdf

Absorption efficiency in post-larvae of the shrimp Litopenaeus vannamei fed a diet of marine yeast from mangrove mudflats
Provedor de dados: 50
Autores: Solorzano-Reyes,Fulvia; Velásquez-López,Patricio C.
ABSTRACT The present study investigated marine yeast as a food source in the Pacific white shrimp Litopenaeus vannamei. Yeast absorption efficiency was determined by measuring the proportion of organic matter assimilated by shrimp post-larvae (PLs). The yeast was isolated and propagated in the laboratory from a sediment sample obtained from a mangrove mudflat. Shrimp post-larvae at six stages, from PL-5-days-old to PL-35-days-old were fed exclusively with yeasts, at three concentrations (1.5 × 105, 3 × 105, 5 × 105cell/mL). The overall average of yeast absorption was around 65.85 ± 11.42 %. The two-way analysis of variance ANOVA (p &lt; 0.05) showed that the efficiency of yeast absorption was not affected by the concentrations of yeasts as a food source:...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estuarine aquaculture; Food absorption; Mangroves; Microorganisms; Pacific white shrimp.
Ano: 2021
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612021000200073