Consulta: subjectFacets:"Biochemical composition"
Registros recuperados: 44
Data/hora: 19/05/2024 11:22:42

A physiological and biochemical approach to selecting the ideal diet for Ostrea edulis (L.) broodstock conditioning (part A)
Provedor de dados: 5
Autores: Gonzalez-araya, Ricardo; Queau, Isabelle; Quere, Claudie; Moal, Jeanne; Robert, Rene.
To select the best microalgae for Ostrea edulis conditioning, four single species diets were fed to batches of broodstock, which were then compared using physiological and biochemical approaches. Ingestion and absorption were first studied, showing that Chaetoceros gracilis and Skeletonema marinoï were efficiently ingested (4.9–5.3 mg g−1 h−1) and absorbed (1.9–2.5 mg g−1 h−1) while Tetraselmis suecica led to the lowest physiological responses (0.36 and 0.12 mg g−1 h−1 respectively). When O. edulis were fed any microalgae except T-ISO with only 79 mg g−1, gonads accumulated carbohydrates from 116 to 141 mg g−1 and the extent of accumulation depended on the species supplied in the order T. suecica&lt;C. gracilis&lt;S. marinoï. When oysters were fed either...
Tipo: Text
Palavras-chave: Ostrea edulis; Conditioning; Algal diets; Ingestion; Absorption; Biochemical composition.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00033/14449/11748.pdf

Amelioration de la forme et de la qualite de l'huitre Crassostrea gigas Thunberg dans les claires de Marennes-Oleron.
Provedor de dados: 5
Autores: Deslous-paoli, Jean-marc; Zanette, Yvan; Heral, Maurice; Masse, Henri; Garnier, Jacqueline.
The breeding of Pacific oysters Crassostra gigas, in non tidal ponds, before commercialization, brings about an improvement of the shell and of the quantity and quality of the tissues. In fact, the Berthome's indice (1978) moves from 1.36 in June to 0.68 December, and the density of the shell increases in the same time from 1.79 to 1.98. On the other hand, the percentage of tissues in the oyster is 12.4% at the end of gametogenesis and more than 9% at the end of breeding. The dry tissues are composed of 10.3 of ash, 40.3% of proteins, 12.6% of lipids and 9% of carbohydrate. 95% of the carbohydrate are glycogen. The resulting energetic values are measured to 5.10 cal-mg super(-1) of dry tissues ash free.
Tipo: Text
Palavras-chave: Crassostrea gigas; Tissues; Biochemical composition; Shells; Growth; Oyster culture.
Ano: 1981
URL: http://archimer.ifremer.fr/doc/1981/publication-1892.pdf

Amélioration des productions phytoplanctoniques en écloserie de mollusques : caractérisation des microalgues fourrage
Provedor de dados: 5
Autores: Robert, Rene; Chretiennot-dinet, Marie-josèphe; Kaas, Raymond; Martin-jezequel, Véronique; Moal, Jeanne; Le Coz, Jean-rene; Nicolas, Jean-louis; Bernard, Eudes; Connan, Jean-paul; Le Dean, Loic; Le Gourrierec, Gaetane; Leroy, Bertrand; Quere, Claudie.
in mollusc hatcheries. Consequently, we assessed themost commonly used species to establish their growth and size profiles, their cytomorphological, biochemical, biomolecular identification as well as their cytometer signs, and also their ability to grow under extreme conditions of temperature and salinity. This work aimed at matching the conformity of the strains used in Argenton (dispatched to most of the French commercial hatcheries) to those of a referenced culture collection. A previous screening preceded this study, because of the 45 species and/or clones held originally, Argenton kept no more than 15 species. As most of the latter are also represented in referenced collection, our strains are therefore correctly identified. On the other hand, the...
Tipo: Text
Palavras-chave: Ecological limits; Biomolecular profile; Flow cytometry; Biochemical composition; Cytomorphology; Phytoplankton; Mollusc; Hatchery; Ecotolérance; Profil biomoléculaire; Cytométrie en flux; Composition biochimique; Cytomorphologie; Phytoplancton; Mollusques; Ecloserie.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/rapport-1546.pdf

Aspects biométriques et biochimiques de la croissance de l'huître Crassostrea virginica en élevage suspendu à Solomons (Baie de Chesapeake)
Provedor de dados: 5
Autores: Goulletquer, Philippe; Prou, Jean; Heral, Maurice.
Growth and proximate biochemical composition of the American oyster Crassostrea virginica were studied in the Patuxent river (Maryland), located in the middle reach of the Chesapeake bay (U.S.A.). The effects of stocking densities and environmental variables (depth, temperature) were examined in 1989-1990 on oyster population by using off-bottom culture. No significant density effect was observed on the shell growth, which is described by using a seasonally oscillating function. In contrast, the meat growth and the proximate biochemical composition were bath affected by the stacking density and the depth location. The variability of the resulting effects was observed based on a seasonal trend. Different hypothesis mainly related tO environmental conditions...
Tipo: Text
Palavras-chave: USA; Chesapeake Bay; Oysters; Growth; Biochemical composition; Crassostrea virginica; Croissance; USA; Chesapeake Bay; Huîtres; Biochimie; Biométrie; Crassotrea virginica.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/1994/publication-3076.pdf

Biochemical composition and energy value of Crassostrea gigas (Thunberg) cultured in the bay of Marennes-Oleron
Provedor de dados: 5
Autores: Deslous-paoli, Jean-marc; Heral, Maurice.
In the bay of Marennes-Oleron the dry flesh of Crassostrea gigas ranged from 29 to 52% proteins, 10 to 23% ash, 6 to 20% lipids and 0 to 4% carbohydrates of which 48.3 ± 21.6% were glycogen. The energy value ranged from 18.84 to 23.47 joule. Mg(-1) ash free dry weight (mean 20.27 J. mg(-1). Reproductive effort varied from 17.8 to 55.9% dry weight for males, and 43.1 to 61.9% for females during the first and third year of reproduction respectively. A high energy value for female gametes (23.47 to 26.24 J. mg(-1) dry tissue) was mainly due to a higher level of lipids (17.3 to 23% of dry tissue) in female gametes as compared to that in male gametes (5.9 to 12.3% of dry tissue). During the period of mass-loss which began in October and finished in March, the...
Tipo: Text
Palavras-chave: Crassostrea gigas; Winter loss of flesh; Reproductive effort; Energy value; Biochemical composition; Crassostrea gigas; Amaigrissement hivernal; Effort de reproduction; Valeur énergétique; Composition biochimique.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/1988/publication-2872.pdf

Biochemical substrates expenses and respiration at short-term starvation of marine planktonic animals
Provedor de dados: 5
Autores: Pavlova, Z; Morozova, A; Gaudy, R; Shchepkin, V.
One of the most important indices at estimation of productivity characteristics of hydrobionts is oxygen consumed in the process of respiration. Usually respiration (standard metabolism) is measured in small-volume respirometres (30-50 ml) where animals' activity is considerably restricted. It may underestimate respiration in comparison to natural one. Therefore respirometres of larger volume were used. Simultaneously under same conditions we tried to estimate energy requirements by expense of main biochemical components of organic matter (lipids, protein, glycogen). Results were used to calculate energy budget and to compare energy expenditures, measured according to consumed oxygen and tissue substrates expense.
Tipo: Text
Palavras-chave: Euchirella curticauda; Pleuromamma abdominalis; Scolecithrix danae; Ostracoda; Copepoda; Starvation; Oxygen consumption; Biochemical composition; Zooplankton; Energy budget; Respiration; Biological production.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/acte-1520.pdf

Changes in proximate composition and lipid quality of atherina atherina sp. during sun drying process
Provedor de dados: 20
Autores: Selmi, S.; Bouriga, N.; Faure, E.; Trabelsi, M.
Dans le présent travail, l’effet du séchage solaire sur la composition biochimique et la qualité des lipides des athérines a été étudié. La teneur en lipides, protéines et en cendres dans l’athérine a augmenté significativement (p &lt;0.05) après le séchage. Cependant, celle de l’humidité a montré une  forte diminution pour atteindre 22.37% dans le produit final. D’autre part, l’étude des indicateurs d’altération des lipides (Oxydation et Hydrolyse) nous a montré que la qualité des lipides des athérines est affectée par ce type de traitement. En effet, les taux des hydropéroxydes et des acides gras libres ont augmenté significativement (p &lt; 0.05) après le séchage pour atteindre respectivement 2.02 meq active O2/kg huile et 3.67%. La formation des...
Tipo: Journal Contribution
Palavras-chave: Biochemical composition; Dried products; Drying; Hydrolysis; Methodology; Oxidation; Processing fishery products; Quality assurance; Atherina; Http://aims.fao.org/aos/agrovoc/c_688.
Ano: 2008
URL: http://hdl.handle.net/1834/4152

Chemical composition of some marine algae from the mediterranean sea of alexandria, egypt
Provedor de dados: 20
Autores: El-Sarraf, W.M.; El-Shaarawy, G.
No abstract is included
Tipo: Journal Contribution
Palavras-chave: Accumulation; Bioaccumulation; Biochemical composition; Algae; Bioaccumulation.
Ano: 1994
URL: http://hdl.handle.net/1834/1243

COMPARATIVE GROWTH AND BIOCHEMICAL COMPOSITION OF FOUR STRAINS OF Nostoc AND Anabaena (CYANOBACTERIA, NOSTOCALES) IN RELATION TO SODIUM NITRATE
Provedor de dados: 37
Autores: ROSALES LOAIZA,Néstor; VERA,Patricia; AIELLO-MAZZARRI,Cateryna; MORALES,Ever.
Nitrogen concentration is an essential parameter in cyanobacterial cultures to produce enriched biomass with biotechnological purposes. Growth and biochemical composition of Nostoc LAUN0015, Nostoc UAM206, Anabaena sp.1 and Anabaena sp.2 were compared at 0, 4.25, 8.5 and 17 mM NaNO3. Cultures under laboratory conditions were maintained for 30 days at a volume of 500 mL. Anabaena sp.1 yielded the highest value of dry mass of 0.26 ± 2.49 mg mL-1 at 8.5 mM NaNO3. For chlorophyll, phycocyanin and phycoerythrin, maximum values were achieved at 17 mM NaNO3 with 18.09 ± 1.74, 102.90 ± 6.73 and 53.47 ± 2.40 μg mL-1, respectively. Nostoc LAUN0015 produced its maximum value of protein 644.86 ± 19.77 μg mL-1, and 890 mg mL-1 of carbohydrates in the absence of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anabaena; Biochemical composition; Biomass; Culture; Nitrate; Nostoc.
Ano: 2016
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2016000200003

Composition en acides gras des différents organes du pétoncle "Flexopecten glaber" (pectinidae) dans la lagune de Bizerte (Tunisie)
Provedor de dados: 20
Autores: Telahigue, K.; Rabeh, I.; Chetoui, I.; Romdhane, M.S.
Dans le présent travail, les profils lipidiques des acides gras du pétoncle Flexopecten glaber récolté dans la lagune de Bizerte pendant le mois de mai 2007 ont été déterminés. Les pourcentages des différents groupes d’acides gras dans les organes (manteau, muscle adducteur, gonade, branchies et glande digestive) ont été calculés. Les résultats de la chromatographie en phase gazeuse ont révélé des pourcentages élevés en C20:5n-3 et en C14:0 et le rapport C22:6n-3/C20:5n-3 (DHA/EPA) est inférieur à 1, au niveau de la glande digestive du bivalve. Ceux-ci nous ont permis d’en déduire que le régime alimentaire de ce bivalve est essentiellement basé sur les diatomées. Les pourcentages les plus élevés des acides gras polyinsaturés de la série n-3 (EPA et DHA...
Tipo: Journal Contribution
Palavras-chave: Animal nutrition; Animal organs; Biochemical composition; Diets; Fatty acids; Lagoon fisheries.
Ano: 2009
URL: http://hdl.handle.net/1834/4496

Composition in essential and non-essential elements of early stages of cephalopods and dietary effects on the elemental profiles of Octopus vulgaris paralarvae
Provedor de dados: 5
Autores: Villanueva, Roger; Bustamante, Paco.
During the present study, we aimed at providing a first look at the elemental composition of the early stages of cephalopods as an approach to their elemental requirements in culture. Essential and non-essential elemental profiles of the European cuttlefish Sepia officinalis, the European squid Loligo vulgaris and the common octopus Octopus vulgaris laboratory hatchlings and wild juveniles were analysed. In addition, for O. vulgaris we determined elemental profiles of mature ovary, eggs in different stages of development and followed possible effects of four dietary treatments during paralarval rearing, also analyzing elemental content of the live preys Artemia nauplii and Maja brachydactyla hatchling zoeae. Content was determined for essential (As, Ca,...
Tipo: Text
Palavras-chave: Octopus; Loligo; Sepia; Larvae; Eggs; Biochemical composition.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-2183.pdf

Condiciones hidroquímicas en estaciones 10 millas frente a la costa ecuatoriana durante el 2008
Provedor de dados: 20
Autores: Macías, Patricia; León, Jeannet.
En el presente trabajo se analizaron las distribuciones tanto de oxígeno disuelto como de los principales elementos nutritivos, durante el periodo 2008, registrados en tres estaciones localizadas a 10 millas fuera de la costa ecuatoriana. Los resultados indican que los mayores valores de oxígeno disuelto a nivel superficial fueron detectaron en el primer trimestre, mientras que la concentración de nutrientes se observaron afectadas debido a los procesos de mezcla que permitió enriquecer el área de estudio.
Tipo: Journal Contribution
Palavras-chave: Dissolved oxygen; Nutrients (mineral); Biochemical composition.
Ano: 2009
URL: http://hdl.handle.net/1834/4786

Correlation between fertility and levels of protein, sugar and free amino acids in seminal plasma of Nelore bulls
Provedor de dados: 45
Autores: Assumpção,T.I.; Torres Júnior,R.A.A.; Sousa,M.V.; Ricart,C.A.O.
Correlations between fertility and the concentrations of proteins, reducing sugars and 17 types of free amino acids in the seminal plasma of Nelore bulls were estimated. The samples were collected from 19 bulls that had high quality semen, according to physical and morphological analyses. The bulls had their fertility scores estimated based on the pregnancy of the females mated to them during three consecutive breeding seasons, either by artificial insemination or by natural breeding. A large variability in the concentrations of the molecules was observed among the samples and a significant correlation coefficient (r= 0.90) between levels of proteins and reducing sugars was estimated. None of the components showed a significant correlation with fertility.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bull; Nelore; Seminal plasma; Fertility; Biochemical composition.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000100008

Crepidula fornicata L. (Gastéropode, Calyptraeidae) dans le bassin de Marennes-Oléron : composition et valeur énergétique des individus et des pontes
Provedor de dados: 5
Autores: Deslous-paoli, Jean-marc; Heral, Maurice.
In the bay of Marennes-Oléron, the shell represents 60% and the dry flesh from 3 to 8.5% of the total weight of Crepidula fornicata. Seasonal changes in the biochemical composition of the dry flesh show two periods of spawning for the females and a single period of reproduction for the males, and that the main component of the energy reserve is glycogen. The mean energy value of Crepidula fornicata varies between 15.1 and 19.3 joules/mg of ash-free dry weight of flesh (average 17.7) and this value is higher in the males than the females, during aIl the periods of reproduction. The females lay, as early as their third year, about 56 egg capsules at each spawning, containing a total of Il 725 eggs with an energy value of 22.4 joules/mg ash free dry weight.
Tipo: Text
Palavras-chave: Crepidula Jornicata; Composition biochimique; Valeur énergétique; Marennes-Oléron; Crepidula Jornicata; Biochemical composition; Energy value; Marennes-Oléron.
Ano: 1986
URL: http://archimer.ifremer.fr/doc/1986/publication-2964.pdf

Croissance et qualité de l'huître ceuse Crassostrea gigas dans le bassin de Thau (Hérault) : Résultats d'une étude réalisée en 1990-1991
Provedor de dados: 5
Autores: Pichot, Paul; Landrein, Sonia; Juge, Claude.
During years 1990-1991, a study was carried ouI in order to precise the relationship between sorne physiological features and the biochemical characteristics of dry flesh and hemolymf of oyster Crassostrea gigas, cultivated in the mediterranean lagoon of Thau. Growth rates and biochemical analysis for proteins, lipids and carbohydrates were estimated. The results of this study are given. They include many other data from a study on trophic relationships developed between 1985-1989.
Tipo: Text
Palavras-chave: Méditerranée; Etang de Thau; Crassostrea gigas; Croissance; Composition biochimique; Protides; Lipides; Glucides; Mediterranean; Lagoon of Thau; Crassostrea gigas; Growth; Biochemical composition; Proteins; Lipids; Carbohydrates.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00419/53031/53966.pdf

Effect of the culture system and culture technique on biochemical characteristics of Pavlova lutheri and its nutritional value for Crassostrea gigas larvae
Provedor de dados: 5
Autores: Ponis, Emanuele; Parisi, G; Le Coz, Jean-rene; Robert, Rene; Zittelli, G; Tredici, R.
Pavlova lutheri was cultivated in carboys using batch technique and in a flat alveolar photobioreactor (FAP), using initially batch and then semi-continuous techniques. Growth and productivity of the cultures were compared and their nutritional quality was assessed by analysing their biochemical composition (gross composition, fatty acids and sterols) and by evaluating their food value for Pacific oyster (Crassostrea gigas) larvae as bispecific diet in association with Chaetoceros calcitrans forma pumilum. The highest productivity was achieved with the FAP operating in semi-continuous mode. Gross composition of P. lutheri was similar in all cultures, while cellular organic matter content of the microalga grown in FAP in semi-continuous mode was lower....
Tipo: Text
Palavras-chave: Semi continuous culture; Pavlova lutheri; Flat alveolar photobioreactors; Crassostrea gigas; Carboys; Biochemical composition; Batch culture.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-6117.pdf

Effect of the density of the culture and the depth on the seasonal variation of the biochemical composition of Crassostrea virginica in patuxent river (Chesapeake Bay)
Provedor de dados: 5
Autores: Prou, Jean; Heral, Maurice; Goulletquer, Philippe; Forget, Maïté; Bougrier, Serge; Razet, Daniel.
The project of cultivation of oyster has been designed to evaluate the growth rate, the mortality, the reproductive effort, production and biochemical composition of the oyster function of the density and the depth. This plan was intended: - to build model of growth rate, - to demonstrate the action of the different parameters on growth rate (temperature, food effect...), - to evaluate the density effect to see if the available food could be a limiting factor, - to estimate the effect of the depth joined to the impact of the high turbidity near the bot tom, - to detect the mortality related to the prevalence of diseases.   The project began in July 1989 by dredging 20 000 small oysters at the mouth of the Patuxent River near Cove Point. Three experimental...
Tipo: Text
Palavras-chave: Physiology; Seasonal variation; Biochemical composition; Density; Crassostrea virginica; Cheseapeake Bay.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00200/31104/29503.pdf

Effets de la  salinité et de la température du milieu sur le degré de saturation des acides gras et sur les différentes catégories lipidiques des alevins de Mugil cephalus.
Provedor de dados: 20
Autores: El Cafsi., M.; Kheriji., S.; Masmoudi., W.; Romdhane., M.S.
Le suivi de l’évolution des lipides des alevins de Mugil cephalus en fonction de la salinité et de la température du milieu, montre qu’après acclimatation à 14°C, le rapport acides gras polyinsaturés/acides gras saturés, chez les alevins acclimatés à la basse salinité (0,5‰) augmente de 6,5%. D’autre part, nous avons noté une diminution de 65% de la masse des triacylglycérols et une augmentation de 37% de celle des lipides polaires.  Par ailleurs, nous avons relevé que l’abaissement de la température du milieu de 26 à 14°C, entraîne une augmentation plus importante du rapport acides gras polyinsaturés/acides gras saturés à 0,5‰ qu’à  35‰. La diminution de la température du milieu provoque  une augmentation respective de 365 et de 53%, de la masse des...
Tipo: Journal Contribution
Palavras-chave: Biochemical composition; Salinity; Lipids; Fry; Fatty acids; Temperature; Accumulation; Mugil cephalus; Http://aims.fao.org/aos/agrovoc/c_35403.
Ano: 2000
URL: http://hdl.handle.net/1834/4296

Electron microprobe analysis of suspended matter in the Angola Basin
Provedor de dados: 27
Autores: Bernard, P.; Eisma, D.; Van Grieken, R.
Electron microprobe analysis of suspended-matter samples collected at different water depths at ten stations in the Angola Basin indicated that at each station, from top to bottom, the elementary composition of the suspended matter was very similar and differed from the composition of the suspended matter at the adjacent stations. This indicates that the downward settling of the suspended matter is much faster than the horizontal transport and mixing by the currents. Assuming that the suspended matter settles in the form of flocs, or is scavenged by settling flocs, the suspended matter can indeed reach the bottom in a shorter period than needed for the currents to cover the distance between adjacent stations. Comparison with sediment trap data from the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biochemical composition; Ocean basins; Sediment traps; Sedimentation; Suspended particulate matter.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3977

Etude de la composition biochimique de la chair et des co-produits de la crevette royale "Penaeus kerathurus" du nord et sud de la Tunisie
Provedor de dados: 20
Autores: Limam, Z.; Sadok, S.; El Abed, O.
La comparaison de la composition biochimique de la chair et des déchets (têtes, queues et carapaces) de Penaeus kerathurus du nord et sud de la Tunisie a été réalisée (protéines totales, lipides totaux, matière sèche, composition en acides gras, azote basique volatil total (ABVT) et acides aminés totaux libres (AATL)). La matière sèche a varié entre 23,77 et 26,06%. Pour tous les échantillons les taux d’ABVT sont restés inférieurs aux seuils limites (20 mg /100g). Les teneurs en acides aminés totaux libres et des lipides des co-produits chez les deux lots de Penaeus kerathurus sont supérieures à celles de la partie consommable. Les acides gras polyinsaturés (AGPI) constituent la partie majeure des acides gras totaux des tissus et co-produits de Penaeus...
Tipo: Journal Contribution
Palavras-chave: Prawn culture; Biochemical composition.
Ano: 2010
URL: http://hdl.handle.net/1834/4702

Etude de la composition corporelle de la sole (Solea solea ) au cours du jeune: Influence de la temperature
Provedor de dados: 5
Autores: Richard, P; Djabali, M; Lagardere, Francoise; Lagardere, J.
The effects of starvation on Solea solea at 10 and 20 degree C in sea water, were studied. At 20 degree C fishes start to die on week 4; at 10 degree C they support a longer starvation period (9 weeks). Proximate analysis shows that protein are more steadily used at 20 degree C than at 10 degree C, contrarily to the corporal lipids which are used at the same rate. Starvation results in a reduction of liver lipids and glycogen. This reduction is more pronounced at 20 degree C : 70% of hepatic glycogen is used at this temperature within the first week of starvation against 30% at 10 degree C.
Tipo: Text
Palavras-chave: Solea solea; Soleidae; Pisces; Survival; Tissues; Biochemical composition; Temperature effects; Proteins; Lipids; Starvation; Metabolism.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1246.pdf

Etude de la fraction azotee soluble de l'anchois sale en cours de maturation
Provedor de dados: 5
Autores: Durand, Patrick.
Different parameters have been followed regularly at various times of anchovy (Engraulis encrasicholus ) ripening. Concentration in NaCl and water content as well as values of water activity and pH are constant and remain quite stable during the entire study period. The relatively acid pH value and the quite low measured water activity level created good conditions for preventing microbial putrefaction at room temperature. The free amino acids and non proteinaceous nitrogen increase indicated the modifications occurring in muscular proteins. These changes resulted in an important proteolytic activity modulated by the medium conditions, especially; pH, temperature and ionic strength. The enzymatic activity slowed down regularly with time but was not...
Tipo: Text
Palavras-chave: Enzymatic activity; Nitrogen compounds; PH; Biochemical composition; Cured products.
Ano: 1981
URL: http://archimer.ifremer.fr/doc/1981/publication-1889.pdf

Factors affecting biochemical composition of seston in an eutrophic reservoir (Pampulha Reservoir, Belo Horizonte, MG
Provedor de dados: 57
Autores: BOËCHAT,I. G.; GIANI,A.
Sestonic biochemical composition (lipids, proteins and carbohydrates) may change with varying environmental fluctuations. These changes and the effects in the nutritional status of algae consists of an actual increasing source of interest. The aims of this work were to establish the relationship between biochemical composition of seston and 1) a range of physical, chemical and climatological factors, and 2) the natural fluctuation in the species composition in phytoplankton assemblages of the Pampulha Reservoir, an urban eutrophic lake located in Belo Horizonte, MG. Seasonal changes in the biochemical composition were observed in this study. None of the considered abiotic factors alone seem to affect the biochemical composition. So the effects could only...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biochemical composition; Seston; Seasonality.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000100009

Growth of the black-lip pearl oyster, Pinctada margaritifera, in suspended culture under hydrobiological conditions of Takapoto lagoon (French Polynesia)
Provedor de dados: 5
Autores: Pouvreau, Stephane; Tiapari, Jerome; Gangnery, Aline; Lagarde, Franck; Garnier, Matthieu; Teissier, Hinano; Haumani, G; Buestel, Dominique; Bodoy, Alain.
Growth of the black-lip pearl oyster, Pinctada margaritifera var. cumingi, was studied for an annual cycle, from March 1997 to April 1998, in the lagoon of Takapoto atoll (Tuamotu archipelago, French Polynesia). Growth in shell and in tissue were measured every 15 days on three successive age groups of cultivated pearl oysters. At the same time, hydrobiological parameters (temperature, salinity, oxygen concentration, suspended particulate matter), known to have influence on bivalve growth, were followed each week during culture. No seasonal trend was observed in hydrobiological parameters, except for temperature which varied between 26 degrees C and 31 degrees C. The potential food for pearl oysters (particulate organic matter, POM, mg l(-1)) was slightly...
Tipo: Text
Palavras-chave: Pearl culture; Matter in suspension; Biochemical composition; Length weight relations ship; Tropical lagoon; Growth; Pinctada margaritifera.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-381.pdf

HUFA levels in eggs of wild and cultured broodstock of &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt;
Provedor de dados: 27
Autores: Lavens, P.; Piyatiratitivorakul, S.; Menasveta, P.; Sorgeloos, P.
The variation in egg quality, i.e. the potential of the egg to produce viable fry, is still a limiting factor in the commercial production of marine fish and crustacean fry. Better knowledge in this field would contribute to improved and especially more consistent hatchery outputs and to the development of more suitable broodstock diets. So far, objective criteria to evaluate egg quality are scarce. However, it is very likely that the nutrient composition of the eggs may be a good indicator for egg viability as it reflects the nutrient demands of the developing embryo and larva. Since (n-3) highly unsaturated fatty acids (HUFAs) have been identified as essential nutrients for the larvae of marine fish, shrimp and prawn a case study has been initiated with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biochemical composition; Brood stocks; Comparative studies; Eggs; Fatty acids; Prawn culture; Shrimp culture; Macrobrachium rosenbergii.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2876

L’algue rouge "Gracilaria verrucosa" (hudson) papenfuss de la lagune de Bizerte (Tunisie septentrionale) : essai de culture en mode suspendu et composition biochimique
Provedor de dados: 20
Autores: Mensi, F.; Ksouri, J.; Hammami, W.; Romdhane, M.S.
L'algue rouge, Gracilaria verrucosa, a été cultivée, durant le printemps 2009, en mode suspendu à différents emplacements et profondeurs  représentant les différences biogéochimiques de la lagune de Bizerte au Nord de la Tunisie. La concentration et la distribution des nutriments (ammonium, phosphate) dans l'eau, ainsi que la salinité, la température, l’oxygène et la transparence de l’eau ont été déterminées. Les méthodes analytiques internationales standardisées ont été appliquées. Les effets du  mode de culture, de l’emplacement et de la profondeur sur les rendements en poids, protéines, R-Phycoérythrine et sucres totaux  de l’algue ont été étudiés. La croissance de Gracilaria a été similaire dans les différents sites mais plus lente dans les profondeurs...
Tipo: Journal Contribution
Palavras-chave: Algal culture; Ammonium compounds; Biochemical composition; Biogeochemistry; Carbohydrates; Dissolved oxygen; Environmental conditions; Growth; Intensive culture; Lagoons; Off-bottom culture; Raw materials; Red algae; Biogeochemical cycle.
Ano: 2009
URL: http://hdl.handle.net/1834/4497

Mortalité et croissance de l'huître creuse C. gigas dans le bassin de Marennes Oléron. Résultats obtenus sur le site atelier de Ronce-Perquis en 1997-1999
Provedor de dados: 5
Autores: Soletchnik, Patrick; Le Moine, Olivier; Faury, Nicole; Razet, Daniel; Geairon, Philippe; Robert, Stephane; Goulletquer, Philippe; Taillade, Sylvie.
The 1999 monitoring of the C. gigas mortality rates showed a 32 to 40% loss for the on-bottom rearings located on the Ronce-Perquis oyster bank. In 1997, the averaged mortality rate varied between 23 and 29% without significant site effect. These mortality rates were ranging from 17 to 32% in 1998 with significant limited mortality rate on site 4 (17%). However, those rates were underestimated by 7 to 8%, based on our 1999 study, Actually, the spatial distribution for these rates on 2 experimental sites divided into 25 subunits demonstrated a large variability ranging from 17-37% and 22-56% for sites 1 and 2, respectively. In spite this large variability, the mortality rates results were larger on the muddy bottom site. In contrast to site 1, the oysters...
Tipo: Text
Palavras-chave: Bay of Marennes Oleron; Crassostrea gigas; Reproductive effort; Biochemical composition; Growth; Sampling strategy; Mortality rates; Bassin de Marennes Oléron; Crassostrea gigas; Effort de reproduction; Composition biochimique; Croissance; Méthodologie d'estimation; Taux de mortalité.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/rapport-1641.pdf

New microalgae for the Pacific oyster Crassostrea gigas larvae
Provedor de dados: 5
Autores: Ponis, Emanuele; Probert, Ian; Veron, Benoit; Mathieu, Michel; Robert, Rene.
The number of microalgae of high nutritional value actually available to mollusc hatcheries is limited to a few species and this represents a constraint for the industry. Fifteen microalgal species belonging to seven different taxonomic classes were selected from the Algobank-Caen microalgal culture collection of the University of Caen. An initial screening of these microalgae, based on their cytomorphological characteristics and growth performances, led to the selection of four species (Imantonia rotunda, Emiliania huxleyi, Pseudoisochrysis paradoxa and Diacronema vlkianum), which were then tested as food for Crassostrea gigas larvae. Two species (L rotunda and E huxleyi) were of poor food value for oyster larvae, while P paradoxa and D. vlkianum resulted...
Tipo: Text
Palavras-chave: Biochemical composition; Larval nutrition; Mollusc hatchery; Microalgae.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1547.pdf

Nutritional value of six Pavlovophyceae for Crassostrea gigas and Pecten maximus larvae
Provedor de dados: 5
Autores: Ponis, Emanuele; Probert, I; Veron, Benoit; Le Coz, Jean-rene; Mathieu, Michel; Robert, Rene.
Four unidentified new strains of Pavlovophyceae [Pavlova sp. AC 250 (M), Pavlova sp. AC 248 (Psh), Pavlova sp. AC 251 (Pth), Pavlova sp. AC 538 (Psm)] and two known species [Pavlova pinguis (Ppi), Rebecca salina (ex Pavlova salina, Rsa)] were characterized (productivity, size, dry weight, ash, gross composition, fatty acids, sterols) and their nutritional value in bispecific diets were evaluated both on Crassostrea gigas and Pecten maximus larvae. All microalgae exhibited poor food value for C gigas larvae. P. pinguis and R. salina did not sustain any growth, like the control starved larvae. No exo-toxicity of P. pinguis and R. salina was detected. These two species were weakly ingested by C. gigas larvae, while the four other pavlovophytes were...
Tipo: Text
Palavras-chave: Biochemical composition; Larval nutrition; Nutritional value; Microalgae.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1558.pdf

Partition of protein from sea urchin: Diadema setosum in different salts
Provedor de dados: 20
Autores: Omollo, S.O.
The results are presented of an experiment conducted on sea urchin     (Diadema setosum ) protein partitioning. Different salts were used to     partition the proteins; it was found that the higher the molecular     weight of the salts, the higher the partition required for the     protein.
Tipo: Journal Contribution
Palavras-chave: Diadema setosum; Biochemical composition; Proteins; Proteins; Http://aims.fao.org/aos/agrovoc/c_6259.
Ano: 1986
URL: http://hdl.handle.net/1834/1222

Production and application of on-grown &lt;i&gt;Artemia&lt;/i&gt; in freshwater ornamental fish farm
Provedor de dados: 27
Autores: Lim, L.C.; Soh, A.; Dhert, P.; Sorgeloos, P.
This paper describes a pilot culture system for the production of on-grown &lt;i&gt;Artemia&lt;/i&gt; in freshwater ornamental fish farms. The system had 21 culture units, each consisting essentially of three components: an oval-shaped raceway, an air-water lift system and two waste collectors. Using artificial seawater at 20 ppt for culture and at a mean production rate of 3 kg/m&lt;sup&gt;3&lt;/sup&gt; of water in a 12-day cycle, the system had a production capacity of 8 metric tons of on- grown &lt;i&gt;Artemia&lt;/i&gt; a year. Biochemical analyses were preformed to evaluate the nutritional value of the on-grown &lt;i&gt;Artemia&lt;/i&gt; against three conventional live feeds, viz. live &lt;i&gt;Artemia&lt;/i&gt; nauplii, live &lt;i&gt;Moina&lt;/i&gt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture economics; Aquaculture techniques; Biochemical composition; Diets; Fish culture; Food organisms; Moina; Nutritive value; Ornamental fish; Artemia.
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8491

Reproduction naturelle de Crassostrea gigas Thunberg dans le bassin de Marennes-Oleron en 1979 et 1981: Aspects biochimiques et energetiques.
Provedor de dados: 5
Autores: Deslous-paoli, Jean-marc; Heral, Maurice; Berthome, Jean-paul; Razet, Daniel; Garnier, Jacqueline.
In summer 1979, the natural reproduction of oysters Crassostrea gigas Thunberg, in Marennes-Oleron basin, produced a large number of juveniles which was not the case in summer 1981. If one compares the evolution of the main constituents of the flesh, one can see that, at the beginning of August, before spawning the male oysters in 1981 contained 6,3% less proteins, 34,2% less lipids and 61,2% less glucids than those in 1979 and respectively 12,3%, 21,3% and 69,8% less as far as females are concerned. The energetic value of ash-free dry flesh of female oysters is nearly the same for the two years whereas for male oysters the value is slightly lower in 1981 than in 1979. The total energetic values of male and female oysters show a slight difference between...
Tipo: Text
Palavras-chave: Crassostrea gigas; Seasonal variations; Food availability; Water temperature; Saccharides; Proteins; Lipids; Biochemical composition; Gametogenesis; Spawning; Sexual reproduction.
Ano: 1981
URL: http://archimer.ifremer.fr/doc/1981/publication-1891.pdf

Réseau de surveillance de la croissance et production de l'huître creuse Crassostrea gigas dans le bassin de Marennes-Oléron : bilan de 12 années de suivi (1986-1998)
Provedor de dados: 5
Autores: Le Moine, Olivier; Geairon, Philippe; Soletchnik, Patrick; Faury, Nicole; Goulletquer, Philippe; Robert, Stephane; Razet, Daniel; Heurtebise, Serge.
Thiis report aims to study the oyster Crwsosrrea gigas growth and production over a 12 years time' s span in the bay of Marennes-DIeron. Results of 12 years of oyster growlh did not show any significant oyster biological productivity decrease, nor trend. ln contrast, annual growth showed a large variability, which will be correlated with environmental conditions. Moreover, annual growth variability was greater than the variability due to site location,. besides the Ronce experimental site. The later, located in the south west part of the bay of Marennes-Dleron, has been the leading oyster growth site since 1989. The annual shell growlh variabiliry was greater than oyster dry meat weight fluctuation . Both 1990 and 1991 years were characterized by the...
Tipo: Text
Palavras-chave: Réseau de surveillance; Croissance; Composition biochimique; Mortalité; Crassostrea gigas; Bassin de Marennes-Oléron; Charente-Maritime; Monitoring network; Growth; Biochemical composition; Mortality rate; Crassostrea gigas; Bay of Marennes Oleron; Charente-Maritime.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00031/14244/11520.pdf

Seasonal analysis of condition, biochemical and bioenergetic indices of females of Brazilian flathead, Percophis brasiliensis
Provedor de dados: 83
Autores: Rodrigues,Karina A.; Macchi,Gustavo J.; Massa,Agueda; Militelli,María I.
Percophis brasiliensis is a demersal species that constitutes an important resource of Argentine coastal fisheries. Nevertheless, information about bioenergetic dynamic of reproduction has not been reported. Therefore, seasonal variations of condition factors, biochemical composition and energy density of different tissues were analyzed in order to determine the strategy of energy allocation during the reproductive cycle of this species. Condition indices (hepatosomatic and K) showed a seasonal pattern opposite to that observed for gonadosomatic index, which was characterized by higher values during the reproductive period (spring-summer), decreasing at the end of spawning. Biochemical composition of different tissues also showed a clearly seasonality...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biochemical composition; Condition; Energy density; Reproduction.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100153

Seasonal and plant-part isotopic and biochemical variation in Posidonia oceanica
Provedor de dados: 5
Autores: Cresson, Pierre; Boudouresque, Charles François; Ruitton, Sandrine; Casalot, Laurie; Verlaque, Marc; Harmelin-vivien, Mireille.
Posidonia oceanica is an iconic and highly productive Mediterranean seagrass. As most studies have focused on the fate of its production, temporal and plant part-specific variations of isotopic composition and biochemical content were overlooked. Combined seasonal and plant-part stable isotope composition and biochemical concentrations were measured at the lower depth limit of a P. oceanica meadow (~ 25 meter depth), and explained on the basis of previous knowledge of the specific metabolic functioning of each part. The predominance of compounds with complex chemical structure was reflected by the high concentrations of insoluble carbohydrates, high C/N ratios and high ä13C values. Plant parts clustered in 3 groups with similar isotopic or biochemical...
Tipo: Text
Palavras-chave: Posidomia oceanica; Mediterranean Sea; Stable isotopes; Biochemical composition.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00505/61640/65566.pdf

Sugars, organic acids, and phenolic compounds of ancient grape cultivars (Vitis vinifera L.) from Igdir province of Eastern Turkey
Provedor de dados: 48
Autores: Eyduran,Sadiye Peral; Akin,Meleksen; Ercisli,Sezai; Eyduran,Ecevit; Maghradze,David.
BACKGROUND: The Eurasian grapevine (Vitis vinifera L.) is the most widely cultivated and economically important horticultural crop in the world. As a one of the origin area, Anatolia played an important role in the diversification and spread of the cultivated form V. vinifera ssp. vinifera cultivars and also the wild form V. vinifera ssp. sylvestris ecotypes. Although several biodiversity studies have been conducted with local cultivars in different regions of Anatolia, no information has been reported so far on the biochemical (organic acids, sugars, phenolic acids, vitamin C) and antioxidant diversity of local historical table V. vinifera cultivars grown in Igdir province. In this work, we studied these traits in nine local table grape cultivars viz....
Tipo: Journal article
Palavras-chave: Table grape; Biochemical composition; HPLC; Spectrophotometer; Germplasm characterization.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602015000100002

The reproductive cycle of the European clam Ruditapes decussatus (L., 1758) in two Portuguese populations: Implications for management and aquaculture programs
Provedor de dados: 5
Autores: Matias, Domitilia; Joaquim, Sandra; Matias, Ana Margarete; Moura, Paula; Sousa, Joana; Sobral, Paula; Leitao, Alexandra.
The reproductive cycle, as well as its nutrient storage and utilization, of two populations of Ruditapes decussatus from the main production areas of this species: Ria de Aveiro and Ria Formosa Lagoon (Portugal) were studied here over a 24 month period (May 2010-April 2012). The reproductive cycle of both populations of R. decussatus followed an annual cyclicality that comprised a ripe stage in spring followed by a spawning period that began in late spring and extended throughout summer until early autumn. This extended and continuous spawning period may be an advantageous strategy for this species by ensuring a continuous supply of gametes. Moreover, R. decussatus can adopt different reproductive strategies depending on the geographical origin. The...
Tipo: Text
Palavras-chave: European clam; Ruditapes decussatus; Reproductive cycle; Portuguese populations; Biochemical composition; Seasonal variations.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00152/26292/25461.pdf

The selection of an ideal diet for Ostrea edulis (L.) broodstock conditioning (part B)
Provedor de dados: 5
Autores: Gonzalez-araya, Ricardo; Lebrun, Luc; Quere, Claudie; Robert, Rene.
Four microalgae species (Rhodomonas salina, Thalassiosira weissflogii, Thalassiosira pseudonana and Pavlova lutheri) were evaluated to estimate their potential as food for Ostrea edulis (L.) reproductive conditioning. Best ingestion and absorption were observed with R. salina (3.44 and 1.59 mg g− 1 h− 1, respectively), followed by T. pseudonana (2.75 and 0.98 mg g− 1 h− 1) and P. lutheri (2.40 and 0.91 mg g− 1 h− 1). Oysters fed T. weissflogii exhibited the lowest ingestion and absorption values (1.40 and 0.68 mg g− 1 h− 1). Proximate composition (proteins and carbohydrates) and lipid content (fatty acids and sterols) analysed in four main tissues (gonad, digestive gland, muscle and gills) also differed significantly with diet. Protein ranged from 355 mg...
Tipo: Text
Palavras-chave: Ostrea edulis; Conditioning; Algal diets; Ingestion; Absorption; Biochemical composition.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00090/20092/17731.pdf

Trophic relationships between benthic or planktonic microphytes and infaunal bivalve molluscs
Provedor de dados: 5
Autores: Plantecuny, M; Bodoy, Alain.
In order to estimate energetic relationship, microphytic and benthic bivalve levels of a shallow (1.5 m), sandy ecosystem near Marseille (Gulf of Fos, Southern France) were sampled monthly during 1.5 year, in two sites differing by their wave exposure. In the sheltered area, the bivalve Ruditapes decussatus was the dominant species, while another bivalve, Donax trunculus , was found in the open, wave exposed site. Chlorophyll a and primary production of the phytoplankton and the microphytobenthos, as well as population dynamic, growth and biochemical composition of bivalves (lipids, proteins and carbohydrates) were monitored.
Tipo: Text
Palavras-chave: Ruditapes decussatus; Bivalvia; Periphyton; Phytoplankton; Biochemical composition; Growth; Marine molluscs; Hydrodynamics; Seasonal variations; Primary production; Trophic relationships.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/acte-1528.pdf

Use of alternative media and different types of recipients in a laboratory culture of Ankistrodesmus gracilis (Reinsch) Korshikov (Chlorophyceae) - doi: 10.4025/actascibiolsci.v33i3.8046
Provedor de dados: 3
Autores: Sipauba-Tavares, Lucia Helena; UNESP; Millan, Rodrigo Ney; UNESP; Berchielli, Flávia de Almeida; UNESP; Braga, Francisco Manoel de Souza; UNESP.
A laboratory culture of Ankistrodesmus gracilis algae was evaluated by studying the biology of the species and its chemical composition in a traditional medium (CHU12) and in two alternative culture media, NPK (20-5-20) and macrophyte (Eichhornia crassipes) + NPK, in three different types of recipients (fiberglass, carboy and plastic bag). First peak in the growth curve of Ankistrodesmus gracilis occurred on the ninth day in macrophyte + NPK medium (74.16 x 105 cells mL-1) in a fiberglass recipient. However, highest density (p &lt; 0.01) was reported in medium CHU12 (122.87 x 105 cells mL-1) in a plastic bag on the twelfth day. Cell density was over 70 x 105 cells mL-1 starting on the twelfth day. Growth rate of A. gracilis was similar (p &gt; 0.05) in...
Palavras-chave: 5.06.00.00-1; 50.306-00-0 Algae; Macrophyte medium; NPK; CHU12; Biochemical composition; Growth 2.05.03.00-8 Algae; Macrophyte medium; NPK; CHU12; Biochemical composition; Growth.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8046

Variaciones en la composición bioquímica proximal de la anchoíta durante tres temporadas de pesca (1975-1977)
Provedor de dados: 20
Autores: Moreno, V.J.; Aizpun, J.E.; Malaspina, A.M.
Seasonal variations in major biochemical compoenets (lipids, protein and water)as well as in ash content of muscle and filletin remains of Engraulis anchoita were studied separately along three consecutive fishing seasons (May-December 1975, 1976 and 1977). Five to ten adult fish of each sex and of nearly identical length (total length: 160-165 mm)were selected at approximately monthly intervals from commercial catches at Mar del Plata Harbour. During the course of the three sampling periods, the proportions of the different biochemcial components showed a very similar pattern of variation and the difference from one fishing season to another never exceeded one month.
Tipo: Journal Contribution
Palavras-chave: Biochemical composition; Proteins; Anchovy fisheries; Proteins; Http://aims.fao.org/aos/agrovoc/c_6259.
Ano: 1979
URL: http://hdl.handle.net/1834/2059

Variation in egg and larval quality in various fish and crustacean species
Provedor de dados: 27
Autores: Lavens, P.; Sorgeloos, P.
It is generally accepted, that a major constraint in the further development of marine fish and crustacean aquaculture, is the variable quality of eggs and larvae used for the hatchery-production of fry. Nonetheless, valid criteria to evaluate optimal egg quality have not been identified yet. Instead, particular indicators, are used, e.g. the fertilization and hatching rate, overall culture success during the first rearing period, etc., but these are not totally objective because hatchery-specific conditions may interfere. The biochemical composition of the egg may be one of the possible determinants of egg quality, which can be evaluated on a more objectie basis. In this respect, studied have been initiated to analyze in freshly-released eggs, the levels...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Biochemical composition; Crustacean culture; Eggs; Fatty acids; Fish culture; Hatcheries; Quality control; Vitamin C.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262328.pdf

Variations de la composition biochimique et de la qualité des lipides des Athérines &lt;Atherina&gt; sp. au cours du séchage solaire
Provedor de dados: 20
Autores: Bouriga, N.; Selmi, S.; Faure, E.; Trabelsi, M.
Dans le présent travail, l’effet du séchage solaire sur la composition biochimique et la qualité des lipides des athérines a été étudié. La teneur en lipides, protéines et en cendres dans l’athérine a augmenté significativement (p &lt;0.05) après le séchage. Cependant, celle de l’humidité a montré une  forte diminution pour atteindre 22.37% dans le produit final. D’autre part, l’étude des indicateurs d’altération des lipides (Oxydation et Hydrolyse) nous a montré que la qualité des lipides des athérines est affectée par ce type de traitement. En effet, les taux des hydropéroxydes et des acides gras libres ont augmenté significativement (p &lt; 0.05) après le séchage pour atteindre respectivement 2.02 meq active O2/kg huile et 3.67%. La formation des...
Tipo: Journal Contribution
Palavras-chave: Biochemical composition; Dried products; Drying; Hydrolysis; Methodology; Processing fishery products; Quality assurance; Hydrolysis; Dried products; Drying; Methodology; Quality assurance; Http://aims.fao.org/aos/agrovoc/c_24940; Http://aims.fao.org/aos/agrovoc/c_15740; Http://aims.fao.org/aos/agrovoc/c_2402; Http://aims.fao.org/aos/agrovoc/c_12522; Http://aims.fao.org/aos/agrovoc/c_35287.
Ano: 2008
URL: http://hdl.handle.net/1834/3783

Variations in lipid classes and fatty acid content in tissues of wild &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; (de Man) females during maturation
Provedor de dados: 27
Autores: Cavalli, R.O.; Tamtin, M.; Lavens, P.; Sorgeloos, P.
This study describes the variations in total lipid, lipid classes and fatty acids in the midgut gland (MG), ovary, and muscle tissue of wild-caught &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; to elucidate the importance of these components during sexual maturation. Mature females were captured in the Mae Klong River, Thailand, from July to September 1998, and divided into five groups according to their ovarian development. Total lipid levels in the ovary increased with maturation, but no concomitant decrease in MG lipids was observed. Thus, the lipid requirements of the developing ovary are thought to be more dependent on the immediate ingestion of dietary lipid than on MG reserves. Higher proportions of neutral lipids (NL), mainly triacylglycerols (TG),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biochemical composition; Fatty acids; Lipids; Muscles; Natural populations; Ovaries; Polyunsaturated fatty acids; Prawn culture; Sexual maturity; Macrobrachium rosenbergii; Thailand.
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6923