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Adaptation of digestive enzymes to dietary protein, carbohydrate and fibre levels and influence of protein and carbohydrate quality in Penaeus vannamei larvae (Crustacea, Decapoda) ArchiMer
Le Moullac, Gilles; Van Wormhoudt, A; Aquacop, Aquacop.
Activity of digestive enzymes (trypsin, chymotrypsin and amylase) was studied in relation with food in Penaeus vannamei larvae first stages. Microparticles containing casein involved the decrease of soluble protein content and enzyme activities. Specific trypsin activity but not chymotrypsin was correlated (p<1%) to casein level between 10 and 60% in microparticles. Cellulose fibres in food seemed to have little effect on digestive enzymes. Starch, between 1 and 20% in microparticles, had no influence on specific amylase activity. The effect of different feeding conditions were also tested on growth. No clear relationship between growth and enzyme is established since only trypsin is concerned in the case of a casein dose effect in the food. The protein...
Tipo: Text Palavras-chave: Amylase; Chymotrypsin; Trypsin; Digestive enzymes; Food; Larvae; Penaeus vannamei; Amylase; Chymotrypsine; Trypsine; Enzymes digestives; Alimentation; Larve; Penaeus vannamei.
Ano: 1994 URL: http://archimer.ifremer.fr/doc/1994/publication-4431.pdf
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Alimentation expérimentale de l'huître Crassostrea gigas à l'aide de navicules bleus Haslea ostrearia (Simonsen) de différentes tailles ArchiMer
Barille, Laurent; Bougrier, Serge; Geairon, Philippe; Robert, Jean-michel.
The influence on the feeding physiology (clearance, filtration, ingestion, absorption) of the Japanese oyster Crassostrea gigas of low concentrations of suspended particulate matter (SPM ranging from 2 to 20 mg.l-l) and high food quality (mean organic fraction =54 %) was studied in the laboratory. Experimental diets were made up with three strains of the "blue diatom" Haslea ostrearia, which is responsible of the greening of oyster-ponds. The strains were characterized by different sizes (48, 65 and 98 µm respectively) but possessed the same density and biochemical composition. Clearance rate was found constant at 2.2 1.h(-l).g-l dry weight and therefore was not influenced by increasing seston load. Pseudofaeces production was observed for SPM...
Tipo: Text Palavras-chave: Taille des particules; Qualité alimentaire; Haslea ostrearia; Crassostrea gigas; Alimentation; Particle size; Food quality; Haslea ostrearia; Crassostrea gigas; Feeding.
Ano: 1994 URL: http://archimer.ifremer.fr/doc/1994/publication-3070.pdf
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Bases biologiques de la production de deux Mollusques d'intérêt économique: reproduction chez Megathura crenulata, reproduction et développement chez Crassostrea gigas ArchiMer
Cannuel, Rozenn.
The reproductive cycle of Megathura crenulata was documented and quantification of oocyte lipid reserves with lipo-specific stains was explored in both this species and in Crassostrea gigas. The necessity of providing food to female broodstock C. gigas in spring was re-evaluated, because subsequent larval and post-larval rearing performance was not affected by broodstock starvation during conditioning. Developmental study of the organs responsible of particle processing in C. gigas allowed the identification of critical stages related to the ontogenesis of each organ, as well as a better understanding of the evolution of these organs, highly-modified in the Ostreidae. Ciliary type identification and mucocyte mapping from post-larval to adult stage showed...
Tipo: Text Palavras-chave: Mucocytes; Mantle; Gill; Larvae postlarvae juveniles; Feeding; Crassostrea gigas; Megathura crenulata; Development; Reproduction; Mucocytes; Manteau; Branchie; Larves post larves juvéniles; Alimentation; Crassostrea gigas; Megathura crenulata; Développement; Reproduction.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/these-1371.pdf
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Définition d'un modèle d'élevage larvaire intensif pour la daurade Sparus auratus ArchiMer
Ounais-guschemann, Nadia.
This study defines rearing parameters for mass products of 30-day old post larvae. Continuous lighting (600 lux) optimizes the predatory activity and suppresses the feeding rhythm. For 4-5 mm larvae (15 days), food ingestion slows down if the prey concentration in the tank is below 5 rotifers/ml, while there is no such threshold for 6-7 mm larvae (22 days). The rotifer Brachionus plicatilis , between 100 and 200 mu m, is an adequate initial prey, it can be replaced by Artemia salina for 7-8 mm larvae (30 days). It is observed that free amino acids and essential fatty acids contents have a prominent role in larvae growth; docosahexaenoic acid (C22:6n-3) content could be determined. Finally, the development of the swim bladder is facilitated by the renewal...
Tipo: Text Palavras-chave: Sparus auratus; Pisces; Marine fish; Environmental diseases; Fatty acids; Amino acids; Controlled conditions; Juveniles; Culture tanks; Growth; Light effects; Nutritional requirements; Fish larvae; Syndrome de paroi; Nutrition; Alimentation; Lumière; Inflation primaire de la vessie natatoire; Sparus auratus; Elevage larvaire intensif; Poisson.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/these-1679.pdf
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Diet, feeding behaviour and trophic activity of the anchovy (Engraulis encrasicolus L.) in the Gulf of Lions (Mediterranean Sea) ArchiMer
Plounevez, Serge; Champalbert, Gisèle.
Feeding behaviour of adult European anchovy (Engraulis encrasicolus) was studied in the Gulf of Lions (northwestern Mediterranean Sea) in relation to major abiotic and biotic factors. Observations were made during the main spawning period (summer) for two years, data were collected through hydrological pro-tiling, zooplankton hauls and fish trawling performed in areas of high anchovy density. Temperature, salinity and zooplankton biomass were stratified in the study areas, with cladocerans numerous above the thermocline whereas copepods were dominant below. Engraulis encrasicolus was strictly zooplanctivorous during the main spawning season with copepod and crustacean larvae dominating in stomach contents. Anchovy exhibited high trophic activity during the...
Tipo: Text Palavras-chave: Anchois; Alimentation; Zooplancton; Reproduction; Méditerranée; Anchovy; Feeding; Zooplankton; Spawning; Mediterranean Sea.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/00301/41263/40455.pdf
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Ecologie et biologie de l'émissole lisse Mustelus mustelus (Linné, 1758) sur les côtes de Mauritanie OceanDocs
Khallahi, B..
RESUME: Les eaux océaniques mauritaniennes sont au carrefour d'eaux froides et salées provenant du Nord, et d'autres chaudes et moins salées du Sud. L'interaction de ces eaux est à l'origine d'un régime hydrologique à 4 saisons: une saison froide de janvier à mai, une saison de transition froide-chaude de juin à juillet, une saison chaude d'août à octobre et enfin une saison de transition chaude – froide de novembre à décembre. La présente étude met en relation ces variations hydrologiques saisonnières, la distribution et la biologie de Mustelus mustelus. La distribution spatiale et temporelle de M. mustelus sur le plateau continental mauritanien a été suivie en analysant les données récoltées au cours de 20 campagnes de prospections scientifiques, 13...
Tipo: Theses and Dissertations Palavras-chave: Mauritania; Croissance; Biologie; Biology; Physical environment; Mauritanie; Ecology; Fecondity; Growth; Emissole lisse; Alimentation; Smouthound shark; Mustelus mustelus; Fécondité; Reproduction; Milieu physique; Écologie; Distribution; Shark fisheries.
Ano: 2004 URL: http://hdl.handle.net/1834/677
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Ecophysiologie de la reproduction chez l'huître creuse, Crassostrea gigas ArchiMer
Pouvreau, Stephane; Lepennec, M.
The reproductive cycle of Megathura crenulata was documented and quantification of oocyte lipid reserves with lipo-specific stains was explored in both this species and in Crassostrea gigas. The necessity of providing food to female broodstock C. gigas in spring was re-evaluated, because subsequent larval and post-larval rearing performance was not affected by broodstock starvation during conditioning. Developmental study of the organs responsible of particle processing in C. gigas allowed the identification of critical stages related to the ontogenesis of each organ, as well as a better understanding of the evolution of these organs, highly-modified in the Ostreidae. Ciliary type identification and mucocyte mapping from post-larval to adult stage showed...
Tipo: Text Palavras-chave: Mucocytes; Mantle; Gill; Larvae postlarvae juveniles; Feeding; Crassostrea gigas; Megathura crenulata; Development; Reproduction; Mucocytes; Manteau; Branchie; Larves post larves juvéniles; Alimentation; Crassostrea gigas; Megathura crenulata; Développement; Reproduction.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/rapport-1867.pdf
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Efeito das sobras de mandioca no ganho de peso de fêmeas bovinas e bubalinas. Infoteca-e
CARDOSO, E. M. R.; SALIMOS, E. P.; ALBUQUERQUE, M. de; NASCIMENTO, C. N. B. do; OLIVEIRA, R. P. de; LOURENÇO JUNIOR, J. de B..
bitstream/item/33546/1/CPATU-CirTec2.pdf
Tipo: Circular Técnica (INFOTECA-E) Palavras-chave: Bubalino; Suplementacao mineral; Rama; Sindi; Belem; Pará; Brasil; Bovine; Buffalo; Alimentation; Suplementation.; Alimentação; Bovino; Ganho de Peso; Mandioca; Nutrição; Raça.; Amazonia; Cassava; Branches; Nutrition; Weight gain..
Ano: 1980 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375756
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Estratégias de alimentação de bovinos em crescimento na época da seca. Infoteca-e
RODRIGUES, A. de A..
Estratégias alimentares para a época da seca; Fontes de alimentos; Níveis e qualidade da proteína; Ganho compensatório; Cana-de-açúcar para bovinos em crescimento na época da seca; Suplementação de bovinos a pasto com concentrado ou mistura múltipla.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Bovinos; Alimentation; Bovines; Growth.; Alimentação; Crescimento..
Ano: 1997 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/44538
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Estudos de alguns aspectos da alimentação em Ascia monuste Godart (Lepidoptera, Pieridae) Zoologia
Felipe,Maria Cecília; Zucoloto,Fernando Sérgio.
Six kinds of crucifer (broccoli, cabbage, califlower, kale, mustard and rugula) were tested, as food, for larvae od Ascia monuste. The best results were obtained eith califlower, broccoli, rugula and kale. Four sugars (glucose, fructose, sucrose and maltose) were tested to know their influence on the number of oviposition in female of Ascia monuste. The best results were obtained with fructose, glucose and sucrose.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lepidoptera; Pieridae; Ascia monuste; Alimentation.
Ano: 1993 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751993000200011
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Etude des nourriceries de la Baie de Seine orientale et de l'estuaire de la Seine ArchiMer
Morin, Jocelyne; Riou, Philippe; Bessineton, Christophe; Vedieu, Christophe; Lemoine, Michel; Simon, Serge; Le Pape, Olivier.
This study, carried out from 1995 to 1997, within the framework of "Le Havre" harbour extension project, concerned halieutic populations and the characterization of a coastal nursery in the oriental part of the Seine bay and the Seine estuary . The main objective was to describe the specific and demographic composition of marine populations and their spatio-temporal distribution, and so assess the biological and halieutic role of this area. This study also included a research about the dietary needs of fish juveniles living in the estuary. Autumn and winter surveys results show that the estuary and area under direct influence are the richest from a biological and halieutic point of view. The mouth estuary isthe richest area in terms of diversity of...
Tipo: Text Palavras-chave: Bay of Seine; Estuary; Food; Trophic; Juvenile; Nursery; Baie de Seine; Estuaire; Alimentation; Trophique; Juvénile; Nourricerie.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/1999/rapport-1507.pdf
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Evaluation de l'effet de l'environnement et de l'alimentation sur l'apparition d'anomalies de développement chez l'alevin de bar (Dicentrarchus labrax) ArchiMer
Menu, Bruno; Robin, Jh; Gouillou-coustans, Marie-francoise.
Larvae from a natural spawn of sea bass were distributed into 3 larval rearing lines in 2 distant sites, after simulated or true transportation. The specific rearing methods in the specific rearing environment of each laboratory were used :starvation under darkness for 160 degrees days and first feeding on Artemia (PP) in the Mediterranean laboratory of Palavas;first feeding on rotifers at 75 degrees days in the laboratory of Brest (Brittany) in 250 liters (BB) tanks or 35 liters tanks (Bb) of a separate rearing line. In the 250 liters tanks in Brest, 2 additional treatments before first feeding on Artemia were tested :starvation up to 160 degrees days under darkness with no bubbling (BP);starvation up to 160 degrees days under continuous illumination with...
Tipo: Text Palavras-chave: Pisciculture; Élevage larvaire; Malformations; Effets de l'environnement; Alimentation; Fish culture; Larval rearing; Abnormalities; Environmental effects; Diet.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/00272/38284/36472.pdf
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Influence de l'hydrodynamique des bassins sur la survie et la croissance des larves de turbot (Psetta maxima) ArchiMer
Gaignon, Jean-louis; Petton, Bruno; Quemener, Loic.
During larval rearing phase of turbot, a substantial variability in survival and growth is frequently observed. In this paper, we studied the effects of hydrodynamics in larvae rearing tanks on the survival and the growth of fed and starved larvae, using the following conditions: water flows of 600 and 1200 ml.mn(-1), constant and progressive ones, air flows of 10 and 30 ml.mn(-1), downward and upward water circulation, with direction change during the rearing phase. We also studied the interactions between water circulation direction and feeding conditions by (1) shifting the first feeding day (4 occasions, at 8 hours intervals, from 52 to 76 hours after 95% of hatching) and (2) using 2 amounts of preys (which differ by a factor 3). The results show that...
Tipo: Text Palavras-chave: Turbot; Techniques d'élevage; Alimentation; Turbot; Rearing methods; Feeding.
Ano: 1998 URL: https://archimer.ifremer.fr/doc/00447/55837/62120.pdf
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Interactions entre comportement et variations de la croissance des juvéniles de la sole (Solea solea) dans les nourriceries des pertuis Charentais ArchiMer
Laffargue, Pascal.
This thesis aimed to identify and analyse processes involved in the functioning of sole Solea solea (L.) nurseries in the Pertuis Charentais, the most important oyster cultivation basin in Europe and a major nursery for the Bay of Biscay sole. Juveniles concentrate in coastal and estuarine habitats, which are essential in the biological cycle of this species but implies (i) adaptation to environmental variability and (ii), accessibility to habitat resources. Assuming that effective nurseries account for what fish must perform in response to habitat constraints, especially in selecting feeding, resting or refuge areas, we used both field works and mesocosm experiments to obtain integrative indicators of the nursery quality (growth rate, Fulton's condition...
Tipo: Text Palavras-chave: Atlantic North East; Shellfish culture; Ingested organic carbon; Feeding; Tri iodothyronine T3; Thyroxine T4; Fulton's K; Growth rate; Flatfish; Essential habitat; Atlantique Nord Est; Conchyliculture; Carbone organique ingéré; Alimentation; Tri iodothyronine T3; Thyroxine T4; K de Fulton; Taux de croissance; Poisson plat; Habitat essentiel.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/these-182.pdf
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Les voies de calcul de la filtration ArchiMer
Soletchnik, Patrick; Heral, Maurice; Razet, Daniel; Geairon, Philippe.
Dans le cadre des études de physiologie, la fonction de filtration intervient dans le calcul du bilan énergétique, ou permet de déterminer la quantité d'aliment consommé par les mollusques filtreurs. Cette fonction peut également être considérée dans les relations avec le poids de l'animal, la température et un certain nombre d'indices de qualité et de quantité de l'aliment dont se nourrit le bivalve. Dans un contexte de coopération internationale entre scientifiques anglais, espagnols et français, une expérimentation physiologique sur les mollusques a été réalisée en septembre 1991 à l'IFREMER La Tremblade. De nombreux objectifs motivent cette expérimentation : la comparaison inter espèces, la confrontation des techniques mises en oeuvre par les...
Tipo: Text Palavras-chave: Physiologie; Filtration; Huître creuse; Crassostrea gigas; Alimentation.
Ano: 1992 URL: http://archimer.ifremer.fr/doc/00102/21303/18916.pdf
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Microalgues marines : les enjeux de la recherche ArchiMer
Muller-feuga, Arnaud.
Industrial potentialities related to biotechnology of microalgae are examined, highlighting a wide spectrum of applications which concern principally nutrition, health, environment and energy. The french situation of research on microalgae, especially at Ifremer, is assessed, showing that the main axis are fine chemistry, aquaculture, environment, bio-process engineering. It covers the majority of the applications, but leaves in shade certain important aspects such as human food and CO2 fixation. Concerning the general approach, some significant improvements can be expected from a more accurate control of bacteriological and genetic quality of cultures. About the industrial aspects, a national initiative seems in progress. The variety of potential...
Tipo: Text Palavras-chave: Process engineering; Energy; Environment; Health; Food; Aquaculture; Biotechnology; Microalgae; Génie des procédés; Energie; Environnement; Santé; Alimentation; Aquaculture; Biotechnologie; Microalgues.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/1997/rapport-1092.pdf
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Nutrition and production systems of the "Bísaro" pig in the north-east region of Portugal IPB - Escola Superior Agrária
Carvalho, Marieta.
The main objective of this paper is to add to the store of knowledge about the alimentation and production systems of the “Bísaro” race of pig in the North-east Transmontano region of Portugal. The statistical sample taken covered 30% of the pig breeders of the Bísaro race: a total of 169 animals, divided up into the following categories: 22 boars, 41 pregnant sows, one sow in lactation, 19 pigs for fattening, 44 weaned piglets and 42 suckling piglets. This study was undertaken during the months from January to May of 1997. After the conclusion of this study we discovered that the average number of breeding sows per pig breeder is 2.7 and the average number of boars is 1.4, giving a perspective of growth in effective reproduction in 67% of the pig...
Tipo: Article Palavras-chave: Pigs; Bísaro Race; Animal production systems; Alimentation; Animal management; Reproduction.
Ano: 2000 URL: http://hdl.handle.net/10198/4343
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Potencial e limitações de dietas a base de cana-de-açúcar para recria de novilhas e vacas em lactação. Infoteca-e
RODRIGUES, A. de A.; CRUZ, G. M. da; ESTEVES, S. N..
bitstream/CPPSE/12298/1/PROCICircT16AAR1998.00107.pdf
Tipo: Circular Técnica (INFOTECA-E) Palavras-chave: Cana-de-açúcar; Alimentation; Sugar cane.; Alimentação; Gado Leiteiro; Lactação; Recria.; Dairy cattle; Lactation..
Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/44355
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Projet GERMON. Structure génétique et migration du thon Germon ArchiMer
Nikolic, Natacha; Puech, Alexis; Chouvelon, Tiphaine; Munschy, Catherine; Bodin, Nathalie; Brach-papa, Christophe; Potier, Michel; West, Wendy; Knoery, Joel; Zudaire, Iker; Dhurmeea, Zahirah; Degroote, Maxime; Cedras, Maria; Evano, Hugues; Bourjea, Jerome.
The GERMON project had several aims i) to understand the populations’ structure between albacore tuna southwest of the Indian Ocean and southeast Atlantic, ii) to determine the origin of juveniles observed in South Africa iii) to improve the understanding of the biology field (Size/Size and Size/Weight; reproduction and feeding area; trophic linkages) and iv) to initiate work on chemical analyzes and adaptation of the albacore species to its environment. These aims have been held and the results allow a better understanding of the management albacore. A general summary of results is presented in Part 9.
Tipo: Text Palavras-chave: Germon; Thunnus alalunga; Génétique; Stock; Structure; Connectivité; Chimie; Reproduction; Alimentation; Habitat; Albacore; Thunnus alalunga; Genetic; Stock; Structure; Connectivity; Chemical; Reproduction; Feeding behavior; Habitat.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00293/40461/39152.pdf
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Sources de variation intra-populationelle de la morphologie des otolithes: asymétrie directionnelle et régime alimentaire ArchiMer
Mille, Tiphaine.
Otoliths are calcified structures located in Osteichthyes’ inner ear that are involved in audition and balance. Their morphology is used as an indicator of various ecological processes or properties. This application requires identifying the endogenous and exogenous factors that act simultaneously as sources of shape variation. This thesis aims at detecting and quantifying the relative contributions of directional asymmetry and diet to otolith shape variation at the intra-population level. Directional asymmetry between left and right otoliths was found in flat-fishes, the blind-side otolith being always longer and larger, whereas it was negligible in round-fishes. However, asymmetry amplitude never exceeded 18 %, which suggests evolutionary canalization of...
Tipo: Text Palavras-chave: Otolithes; Oreille interne; Ostéichtyens; Symétrie; Alimentation; Analyse de forme; Analyse de Fourier; Morphométrie géométrique; Otoliths; Inner ear; Osteichthyes; Symmetry; Diet composition; Shape analysis; Fourier analysis; Geometric morphometrics.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00344/45536/45108.pdf
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