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Registros recuperados: 23 | |
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Gaignon, Jean-louis; Prouzet, Patrick. |
Les résultats de la campagne 1979-1980 ont montré la nécessité d'améliorer les performances de l'alevinage pour obtenir des résultats de production intéressants en cycle ouvert dans les conditions bretonnes. En effet, une augmentation du taux de smoltification à un an ne semble pouvoir être obtenue dans des conditions économiquement intéressantes (Charge très supérieure à 2 kg/m2), qu'à condition que la taille des tacons soit au moins égale à 6-7 cm en septembre de la première année. En conséquence, l'objectif expérimental de la saison 1980-1981 est de déterminer les conditions d'élevage qui puissent permettre d'obtenir un population homogène ayant une bonne croissance c'est-à-dire très supérieure à celle obtenue en 79-80.... |
Tipo: Text |
Palavras-chave: Aquaculture; Pisciculture; Production; Juvéniles; Salmo salar; Densité. |
Ano: 1981 |
URL: http://archimer.ifremer.fr/doc/00143/25381/23519.pdf |
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Gaignon, Jean-louis; Prouzet, Patrick. |
Le saumon atlantique, S. salar, est une espèce de salmonidés relativement délicate à élever dans sa phase eau douce, et seuls les pisciculteurs ou organismes directement intéressés par l'aquaculture ou le repeuplement tentent depuis quelques années des essais d'élevage, tous très décevant en Bretagne jusqu'à présent. Lors des la saison 1979-1980, 5 élevages au total ont été, à notre connaissance, pratiqués en Bretagne. Parmi ces élevages, 3 ont été suivis durant toute la saison (production de smolts 1+ uniquement. |
Tipo: Text |
Palavras-chave: Aquaculture; Pisciculture; Saumon atlantique; Salmo salar; Elevage. |
Ano: 1980 |
URL: http://archimer.ifremer.fr/doc/00143/25382/23520.pdf |
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Roque D'Orbcastel, Emmanuelle. |
Sustainability of fish aquaculture is currently subjected to environmental protection enhancement and to increasing restrictions of water and energy availability. The aim of this work was to study the biotransformations and waste management in a salmonid french farm (Charles Murgat S.A.S, Isère). Quantification of the wastes is necessary for the farmers and administrations to define control tools and treatment systems in view of water legislation respect (French water low, EC Water Framework Directive). The nutritional method gives a direct relation between feed and effluent fluxes. This method is easier to use than the hydrobiological method, which requires precise flow rate and concentration measurements (difficult and expensive). Solid waste treatment... |
Tipo: Text |
Palavras-chave: Traitement de l'eau; Rejets; Analyse du cycle de vie; Bien être; Recirculation; Biotransformations; Salmonidés; Pisciculture. |
Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/these-3893.pdf |
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Méro, David. |
Finfish farming diversification is a reality nowadays in France: this work brings the interest of the whole commodity chain for new fish species. This report identifies the species criterions of choice from inquiries beside professionals of the commodity chain, proposes a selection method and tackles, in example, the choice of new species for fish farming in cages on the west coasts of France, from Bay of Biscay to the North Sea. ' Method is divided in two stages: firstly an elimkation stage, which aims are to select from the 25 000 fish species, potential species by using redhibitory postulates, secondly a position stage which classifies the remaining species. A list of 53 species is proposed. Selection has been stopped because of the shortage of data.... |
Tipo: Text |
Palavras-chave: Aquaculture; Pisciculture; Diversification; Nouvelles espèces; Poissons marins; Aide à la décision; Sélection multicritère; Marché; Transformation. |
Ano: 1999 |
URL: https://archimer.ifremer.fr/doc/00622/73448/72687.pdf |
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Muller-feuga, Arnaud. |
After a literature overview of growth models applied to intensively cultured fishes, a new one is proposed for assistance in rearing operations, with following characteristics. A simple and integratable mathematic expression simulates growth while eliminating individual weight influence. It gives way to a specific growth general definition. Temperature action mode on growth speed is simulated by substraction of two exponential functions. An automatic calculation method of thermal parameters is proposed. The torpid action of low temperatures is considered. Feeding ration influences growth through simple rules which are explicitly taken in account by mean of a two parameters function. The other growth factors, more difficult to seize, are expressed through a... |
Tipo: Text |
Palavras-chave: Modèle; Croissance; Élevage poissons; Pisciculture; Model; Fish culture.; Growth. |
Ano: 1990 |
URL: http://archimer.ifremer.fr/doc/00183/29428/27794.pdf |
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Gerard, Andre. |
Introduction: To develop its 2005-2009 strategic plan, IFREMER made two prospective analysis studies in 2003: a thematic prospective analysis and a sectorial prospective analysis. The "aquafarming" sectorial prospective analysis, based primarily on an IFREMER idea, particularly brought to light the difference in nature of problems posed by the future evolution of shellfish farming, fish farming and other stockbreeding (pearl farming and shrimp farming). In addition, the prospective analyses made on an international scale by the FAO (2002, 2004) and the IFPRI (2003) emphasise that the development of aqua farming is the required condition for satisfying world demand of consumer aquatic products, given the foreseeable weak growth, indeed, the stagnation of... |
Tipo: Text |
Palavras-chave: Economic impact; Marine fish farming; France; Pisces; Technique Aquacole; Economie; Recherche Appliquee; Elevage; Pisciculture. |
Ano: 2006 |
URL: https://archimer.ifremer.fr/doc/2006/rapport-1506.pdf |
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Gaignon, Jean-louis; Prouzet, Patrick. |
La pisciculture du Quinquis, sise près de Landivisiau (29), a pour objet la production intensive de smolts de saumon atlantique (Salmo salar) dans le cadre d'un programme d'aménagement et de repeuplement de la rivière Elorn. Depuis sa mise en eau (1976) les résultats ont été décevants et ceci à cause, d'une part de difficultés de démarrage (problèmes alimentaires en autres), d'autre part de problèmes sanitaires : la furonculose ayant entrainé des mortalités importantes dès le 1er automne (alevins à bonne croissance) ou en fin d'hiver. Au total, la survie a toujours été très faible et la production de smolts négligeable. C'est pourquoi, à partir de la saison 79-80, les objectifs ont été tournés davantage vers l'expérimentation tout en conservant un objectif... |
Tipo: Text |
Palavras-chave: Saumon atlantique; Salmo salar; Elevage; Juvénile; Paramètres élevage; Données économiques; Pisciculture. |
Ano: 1981 |
URL: http://archimer.ifremer.fr/doc/00083/19420/17031.pdf |
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Leite,Lorena Alves; Quaresma,Fabrízia da Silva; Ribeiro,Pedro Florêncio; Farias,Wladimir Ronald Lobo; Souza,Bartolomeu Warlene Silva de. |
ABSTRACT Nile tilapia (Oreochromis niloticus) is a euryhaline species which, in marine systems, can provide animal protein where fresh water is scarce. As a result, adequate water management to maintain sustainability is essential, and the use of a salt water recirculating system would be an advantage at the present time. In addition, Arthrospira platensis is used in the diet of aquatic organisms, as it is rich in protein. The aim of this study, therefore, was to evaluate the use of A. platensis as a food supplement in the performance of Nile tilapia in a salt water recirculating system. The experimental model included two groups, with four replications. Each crop had a duration of 45 days (control and test), giving a total of 90 days, with the control... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microalgae; Pisciculture; Recirculation; Salinity. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000400593 |
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Ribeiro,Pedro Florêncio; Leite,Lorena Alves; Quaresma,Fabrízia da Silva; Farias,Wladimir Ronald Lobo; Sampaio,Alexandre Holanda. |
ABSTRACT The aim of this study was to evaluate different levels of dietary supplementation with dried Arthrospira platensis meal during the breeding season of the tambatinga hybrid, using zootechnical performance, haematological parameters and percent composition of the fillet, and by measuring the parameters of water quality. Experimental breeding lasted 64 days. The fry, with an initial weight of 3.56 ± 0.02 g, received diets with two levels of supplementation (20 and 40%) and one control (commercial feed, without the addition of A. platensis meal). The water quality parameters over safe limits were total ammonia (NH3), nitrite (NO2-), and nitrate (NO3-), which increased as the level of supplementation increased, but did not cause any mortalities. The... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pisciculture; Nutrition; Zootecnhical performance. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000400600 |
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Registros recuperados: 23 | |
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