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	Provedor de dados Scientia Agricola (1) Autor Dubeux Junior,José Carlos Batista (1) Guim,Adriana (1) Lira,Mário de Andrade (1) Mello,Alexandre Carneiro de Leão de (1) Santos,Mércia Virgínia Ferreira dos (1) Santos,Rerisson José Cipriano dos (1) Mais... Palavra-chave Fermentation process (1) Fodder (1) Grass silage (1) Pennisetum purpureum (1) Quality (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2013 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 225 Primeira ... 4 5 6 7 8 9 10 11 12 ... Última Etudes sur la pathologie des huîtres ArchiMer Balouet, G.. French summary: In 1974, at the request of a group of oyster farmers in the Brittany region, the Pathology Laboratory of the U.E.R. Medicine of Brest undertook a series of theoretical and applied research projects concerning the problem of flat oyster digestive gland disease, due to Marteilia refringens, the primary economic problem of that time. In 1978, in the research report of Contract C.N.E.X.O. 77/1690, the main results obtained since the beginning of the study of the parasitosis were made public. The present report has as its objective to show: - The results obtained in 1978-1979 while monitoring the parasitosis, and most especially the epidemiological evolution of the disease; - Information concerning the presence of other infectious diseases... Tipo: Text Palavras-chave: Parasite; Ostrea edulis; Oyster; Pathology. Ano: 1978 URL: http://archimer.ifremer.fr/doc/1978/rapport-1927.pdf Experimental transmission of Marteilia refringens with special consideration of its life cycle ArchiMer Berthe, Franck; Pernas, Maria; Zerabib, Maamar; Haffner, Philippe; Thebault, Anne; Figueras, Antonio. Ever since its first description the paramyxean parasite Marteilia refringens has been recognised as one of the most significant pathogens of bivalve molluscs. The existence of a complex life cycle has been postulated by many authors. However, the transmission route of M. refringens and its life cycle remain unresolved. Experimental observations are presented here that may help lead to a satisfactory hypothesis of the M. refringens life cycle. Trials were performed to test the infectivity of purified early and late stages of M. refringens by different routes of inoculation. Horizontal transmission was also tested by cohabitation with carriers in experimental tanks. Field cohabitation and exposure to natural sources of the parasite helped examine the role... Tipo: Text Palavras-chave: Marteilia refringens; Ostrea edulis; Transmission trial. Ano: 1998 URL: https://archimer.ifremer.fr/doc/1998/publication-2742.pdf Observations relatives à la maladie des huîtres plates dans le bassin d'Arcachon, vitesse d'infestation et réactions pathologiques ArchiMer His, Edouard; Tige, Gilbert; Rabouin, Marie-agnès. D'Avril 1974 à Décembre 1975, un lot d'huîtres plates provenant du Golfe de Morbihan, zone encore non parasitée, a été placé en élevage dans une claire des Hosses située dans le bassin d'Arcahon. L'infestation des huîtres par Marteilia refringens a été suivie sur coupes histologiques et, conjointement des enregistrements de l'activité valvaire ont été effectués à l'aide de deux ostréographes. L'association de ces techniques a permis de mettre en évidence un dérèglement de l'activité valvaire coïncidant avec l'apparition de Marteilia refringens chez l'hôte. Des réactions caractéristiques de types pathologiques ont été enregistrées chez les huîtres gravement atteintes. Tipo: Text Palavras-chave: Huître plate; Ostrea edulis; Pathologie; Maladie; Bassin Arcachon. Ano: 1976 URL: http://archimer.ifremer.fr/doc/00015/12625/9510.pdf The Native Oyster Restoration Alliance (NORA) and the Berlin Oyster Recommendation: bringing back a key ecosystem engineer by developing and supporting best practice in Europe ArchiMer Pogoda, Bernadette; Brown, Janet; Hancock, Boze; Preston, Joanne; Pouvreau, Stephane; Kamermans, Pauline; Sanderson, William; Von Nordheim, Henning. Efforts to restore the native oyster Ostrea edulis and its associated habitats are gaining momentum across Europe. Several projects are currently running or being planned. To maximize the success of these, it is crucial to draw on existing knowledge and experience in order to design, plan and implement restoration activities in a sustainable and constructive approach. For the development of best practice recommendations and to promote multidimensional knowledge and technology exchange, the Native Oyster Restoration Alliance (NORA) was formed by partners from science, technology, nature conservation, consultancies, commercial producers and policy-makers. The NORA network will enhance scientific and practical progress in flat oyster restoration, such as in... Tipo: Text Palavras-chave: Ostrea edulis; Berlin Oyster Recommendation; Biogenic reef; Ecosystem service; Biodiversity. Ano: 2019 URL: https://archimer.ifremer.fr/doc/00500/61192/64723.pdf Emergence de maladies chez les organismes d'intérêt aquacole : quelques scénarios illustrés d'exemples ArchiMer Saulnier, Denis; Reynaud, Yann; Arzul, Isabelle; Miossec, Laurence; Le Roux, Frédérique; Goarant, Cyrille. According to the world organisation for animal health (OIE) an emerging disease is defined as a recently admitted serious illness, whose aetiology can, or not, have already been established, and which is likely to be propagated within a population or between populations, for example at the time of international exchanges of aquatic animals and/or products of aquatic animals. Even though the emerging diseases that affect human health have been much studied, those which affect marine organisms and species of aquaculture interest in particular are poorly documented. By restricting emergence to only infectious diseases, we aim at presenting in a non-exhaustive way some scenarios of the emergence of the diseases of aquacultured species by illustrating them with... Tipo: Text Palavras-chave: Cyprinus carpio; Ostrea edulis; Bonamia ostreae; Peneides; Vibrio nigripulchritudo; Herpesvirus; Agent pathogène. Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2980.pdf Validation of in situ hybridisation and histology assays for the detection of the oyster parasite Marteilia refringens ArchiMer Thebault, Anne; Bergman, S; Pouillot, R; Le Roux, Frédérique; Berthe, Franck. An in situ hybridisation technique has been developed for the detection of infection in oysters with Marteilia refringens with particular emphasis on light infections or confirmation of suspected cases by means of histology. Although validation of new diagnostic methods is usually achieved by comparison with standard techniques, in our case the sensitivity and specificity of the standard (histology) had not previously been established. Another point to consider is that surveillance and monitoring frequently target populations displaying different levels of prevalence under different field conditions. The objective of our study was to evaluate the sensitivity and specificity values of in situ hybridisation and histology for the detection of M refringens,... Tipo: Text Palavras-chave: Ostrea edulis; Marteilia refringens; Latent models; Specificity; Sensitivity; Validation; Diagnostic. Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-3624.pdf Rapport sur l'activité du Laboratoire de La Tremblade - Année 1959 ArchiMer Trochon, Pierre. Rapport sur l'activité du Laboratoire ISTPM de La Tremblade concernant l'année 1959 Tipo: Text Palavras-chave: Conchyliculture; Rapport d'activité; Météorologie; Parasite; Mortalité; Reproduction; Claire ostréicole; Crassostrea angulata; Ostrea edulis; Mytilus edulis; Marennes Oléron. Ano: 1959 URL: http://archimer.ifremer.fr/doc/00069/18072/15616.pdf Analyse du succès reproducteurs chez des populations naturelles et d'écloserie d'huître plate Ostrea edulis L. ArchiMer Lallias, Delphine. Cette étude vise à approfondir la connaissance de la biologie de la reproduction de l'huître plate Ostrea edulis afin de mieux comprendre comment les caractéristiques de la biologie de reproduction de l'espèce peuvent rendre compte des phénomènes de déficits en hétérozygote et de relation positive entre hétérozygotie et croissance. En particulier, elle vise à analyser le succès reproducteur en milieu naturel et dans les populations maintenues en écloserie. Cette étude repose sur l'utilisation de marqueurs microsatellites qui, du fait de leur fort polymorphisme, représentent des outils puissants d'assignation de parenté. Une première partie de l'étude a consisté à analyser les pontes issues de femelles incubantes prélevées dans le milieu naturel. Le nombre... Tipo: Text Palavras-chave: Ostrea edulis; Microsatellites; Biologie de la reproduction; Variance du succès reproducteur. Ano: 2003 URL: http://archimer.ifremer.fr/doc/00370/48167/48281.pdf Larval development and fatty acid composition of Ostrea edulis (L.) fed four different single diets from conditioning to pre-settlement ArchiMer Gonzalez-araya, Ricardo; Robert, Rene. Survival, growth and fatty acid composition of Ostrea edulis larvae (L.) fed four different single species, microalgal diets, Tisochrysis lutea (T), Chaetoceros neogracile (Cg), Skeletonema marinoi (Sm) or Tetraselmis suecica (Ts) from broodstock to pre-settlement, were studied. Lower larval growth (5.5m to 6.5m/d) was recorded in progeny continuously fed single S.marinoi or T.suecica, whereas good growth was achieved with single T.lutea (7.8m/d). Larvae, originated from broodstock receiving Sm or Ts, exhibited growth compensation when fed a bispecific balanced diet (TCg). This did not occur when broodstock and larvae were fed Cg or T, for which single or mixed diets led to similar larval growth. Furthermore, survival was high (>90%) regardless of... Tipo: Text Palavras-chave: Broodstock conditioning; Diet; Larval development; Ostrea edulis. Ano: 2018 URL: https://archimer.ifremer.fr/doc/00438/54986/56483.pdf Marteilia refringens and Marteilia pararefringens sp. nov. are distinct parasites of bivalves and have different European distributions ArchiMer Kerr, R.; Ward, G. M.; Stentiford, G. D.; Alfjorden, A.; Mortensen, S.; Bignell, J. P.; Feist, S. W.; Villalba, A.; Carballal, M. J.; Cao, A.; Arzul, Isabelle; Ryder, D.; Bass, D.. Marteilia refringens causes marteiliosis in oysters, mussels and other bivalve molluscs. This parasite previously comprised two species, M. refringens and Marteilia maurini, which were synonymized in 2007 and subsequently referred to as M. refringens ‘O-type’ and ‘M-type’. O-type has caused mass mortalities of the flat oyster Ostrea edulis. We used high throughput sequencing and histology to intensively screen flat oysters and mussels (Mytilus edulis) from the UK, Sweden and Norway for infection by both types and to generate multi-gene datasets to clarify their genetic distinctiveness. Mussels from the UK, Norway and Sweden were more frequently polymerase chain reaction (PCR)-positive for M-type (75/849) than oysters (11/542). We did not detect O-type in... Tipo: Text Palavras-chave: Marteilia refringens; Marteilia pararefringens; ITS1 rDNA; IGS rDNA; Paramyxida; Ascetosporea; Mytilus edulis; Ostrea edulis. Ano: 2018 URL: http://archimer.ifremer.fr/doc/00444/55566/57177.pdf European flat oyster - Ostrea edulis ArchiMer Lapegue, Sylvie; Beaumont, A.; Boudry, Pierre; Goulletquer, Philippe. The European flat oyster, Ostrea edulis, a native of Europe, occurs naturally from Norway to Morocco in the North-Eastern Atlantic and in the whole Mediterranean Basin; It has been a harvested species for at least 6000 years. Natural populations are also observed in eastern North America, from Maine to Rhode Island, following intentional introductions in the 1940s and 1950s. The species was also introduced in Canada for aquaculture purpose 30 years ago and some populations naturalised in Nova Scotia, New Brunswick and British Columbia. These stocks were imported from naturalised populations in Maine whose ancestors originated in the Netherlands. Tipo: Text Palavras-chave: Genetics; Ecology; Biology; Ostrea edulis; Oysters. Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/acte-3321.pdf Micro-organismes de type Rickettsien chez les huîtres Crassostrea gigas Th. et Ostrea edulis L. ArchiMer Comps, Michel; Tige, Gilbert; Duthoit, Jean-louis; Grizel, Henri. Some rickettsian infections have been found in French Atlantic oysters, Crassostrea gigas and Ostrea edulis. The micro-organisms parasite the digestive diverticulum epithelium cells although not creating any damage that could strongly affect the molluscs. If not for its shape, which appears to be longer in the case of the Crassostrea gigas Rickettsia, the characteristics of these two micro-organisms seem pretty close and enabled their inclusion in the Rickettsial order. Tipo: Text Palavras-chave: Rickettia; Ostrea edulis; Crassostrea gigas; Huîtres; Pathologie; Infections. Ano: 1977 URL: http://archimer.ifremer.fr/doc/1977/acte-6173.PDF Integration of shellfish farming activies in three French coastal environments : Mont Saint-Michel Bay, Gulf of Morbihan, and Marennes-Oleron Bay ArchiMer Mazurie, Joseph; Le Mao, Patrick; Camus, Patrick; Bacher, Cedric; Goulletquer, Philippe. Integration of shellfish farming along the French shoreline (around 5500 km) has been progressive, as marine bivalve culture is a traditional activity in our country. The history of mussel culture relates that the "bouchot" technique (intertidal culture on wooden poles, producing annually around 60,000 tons) was developed as early as the XIIIth century, by a refugee attempting to capture birds by sticking branches of brushwood along the shore. The European flat oyster, Ostrea edulis, already appreciated at the Roman period, was first cultivated in France after Victor Coste introduced the technique of spat collection at the end of the XIXth century. The Pacific cupped oyster, genus Crassostrea, now the most-cultivated in France (around 120,000 tons marketed... Tipo: Text Palavras-chave: Trophic capacity; Trophic resource; Nature conservation; Coastal zone management; Biodiversity; Mytilus edulis; Mussels; Integration; Ostrea edulis; Crassostrea gigas; Oysters. Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/acte-3400.pdf Etude du cycle de Marteilia refringens dans l'Etang de Thau ArchiMer Comps, Michel. Since the beginning of the epizooty of the flat oyster Ostrea edulis on the Atlantic coast (Comps, 1970), it has been observed that the parasitosis did not develop in the Mediterranean Sea in oysters from the Thau lagoon even though a large part of the culture is made up of young oysters from Brittany. However, some episodic studies only rarely found the presence of Marteilia refringens in the oysters from the lagoon. Tipo: Text Palavras-chave: Marteilia refringens; Ostrea edulis; Pathologie; Parasite. Ano: 1979 URL: http://archimer.ifremer.fr/doc/1979/acte-6078.PDF Comparison of Heamograms from resistant and susceptible European flat oysters, Ostrea edulis, exposed to the parasite, Bonamia ostreae ArchiMer Cochennec, Nathalie; Renault, Tristan; Chollet, Bruno; Maffart, Patricia. To study the cellular defence mechanisms involved in the resistance of the flat oysters against Bonamia ostreae, a comparaison of haemograms was performed between susceptible and resistant animals Tipo: Text Palavras-chave: Pathogen; Bonamia ostreae; Ostrea edulis. Ano: 1995 URL: http://archimer.ifremer.fr/doc/1995/acte-2906.pdf REGEMO Réseau Génétique Mollusques. Compte rendu de la réunion des 13 et 14 décembre 1993 - Nantes ArchiMer Gerard, Andre; Naciri, Yamama; Peignon, Jean-marie; Ledu, Christophe; Phelipot, Pascal; Baud, Jean-pierre; Nourry, Max; Haure, Joel; Coatanea, Denis; Oheix, Jocelyne; Vercelli, Catherine; Chabirand, Jean-michel; Borel, Michel; Maurer, Daniele; Heurtebise, Serge; Garnier, Jacqueline; Martin, Anne-genevieve; Tige, Gilbert; Mazurie, Joseph; Langlade, Aime. Cette réunion des membres du Réseau Génétique Mollusques avait pour objet de faire un bilan provisoire des actions en cours et surtout de mettre en place les protocoles et les calendriers du début de l'année 1994. La première demi-journée a été réservée à un exposé de Yamama NACIRI sur les bases de la Génétique Quantitative et ses applications dans le cadre des programmes de sélection des mollusques.La deuxième demi-journée a été consacrée au bilan des actions de 1993. Les représentants de chaque site, intervenant dans une opération du réseau en 1993, ont fait une présentation orale de leurs résultats. Un résumé de chaque intervention vous est fourni dans ce document. Il est important de souligner que tous ces bilans sont provisoires, en premier lieu parce... Tipo: Text Palavras-chave: Génétique; Sélection génétique; Huître plate; Ostrea edulis; Croissance; Génétique population. Ano: 1993 URL: http://archimer.ifremer.fr/doc/00049/15982/13425.pdf Herpesvirus infection in European flat oysters Ostrea edulis obtained from brood stocks of various geographic origins and grown in Galicia (NW Spain) ArchiMer Da Silva, P; Renault, Tristan; Fuentes, J; Villalba, A. We evaluated differences in productive traits and disease susceptibility among Ostrea edulis stocks. We produced 4 to 5 families from each of 4 oyster populations (Irish, Greek and 2 Galician) in a hatchery. Spat corresponding to 19 different families were transferred to a raft in the Ria de Arousa (Galicia, Spain) for grow-out. Samples of each family were histologically processed every month for 2 yr. One of the pathological conditions disclosed by histological examination was characterised by the occurrence of numerous abnormal cells throughout the connective tissue of various organs, showing hypertrophied nuclei with marginated chromatin and a characteristic large intranuclear acidophilic inclusion. Ultrastructural examination showed that the abnormal... Tipo: Text Palavras-chave: In situ hybridisation; Transmission electron microscopy; Histology; Bonamiosis; Ostreid herspesvirus 1; Ostrea edulis. Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-3735.pdf Diversité et différentiation génétique chez l'huître plate européenne : de la population à l'individu (Actes) ArchiMer Boudry, Pierre; Launey, Sophie; Diaz-almela, A.; Naciri-graven, Yamama; Ledu, Christophe; Mira, S.; Taris, Nicolas; Bonhomme, Francois; Lapegue, Sylvie. PCR-based DNA markers enable the study of diversity and differentiation of marine organisms at different stages of their life cycle. Our study of European fiat oyster (Ostrea edulis) populations aimed to describe their spatial and temporal dynamics. First, we analyzed adults sampled over the natural range of the species. An Atlantic/Mediterranean differentiation pattern was observed. Similar patterns of variation were found using allozymes, microsatellites and mitochondrial DNA, aIl which support an isolation by distance model. High variability was observed in the range of diversity between populations using a mitochondrial marker, a reflection of small effective population sizes in sorne locations. A 10fold quantitative difference was observed in Fst,... Tipo: Text Palavras-chave: Recruitment; Diversity; Molecular markers; Population genetics; Ostrea edulis; Flat oyster; Dynamique de recrutement; Diversité génétique; Microsatellites; Marqueurs moléculaires; Génétique des populations; Ostrea edulis; Huître plate. Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/acte-2851.pdf NORA moving forward: Developing an oyster restoration network in Europe to support the Berlin Oyster Recommendation ArchiMer Pogoda, Bernadette; Boudry, Pierre; Bromley, Cass; Cameron, Tom C.; Colsoul, Bérenger; Donnan, David; Hancock, Boze; Hugh‐jones, Tristan; Preston, Joanne; Sanderson, William G.; Sas, Hein; Brown, Janet; Bonacic, Kruno; Nordheim, Henning; Zu Ermgassen, Philine S.e.. The Native Oyster Restoration Alliance (NORA) supports the protection and ecological restoration of the native European oyster, Ostrea edulis, and its habitat across its current and historical biogeographical range. NORA works to overcome barriers to the conservation, restoration, and recovery of the European oyster by providing a platform for the NORA community to collaborate and participate in knowledge exchange. NORA seeks to support responsible restoration practice, in compliance with biosecurity and sustainability. Against this background, the NORA community formulated a series of specific recommendations, the Berlin Oyster Recommendation, to support native oyster restoration by developing and applying best practice with the aim to recover healthy and... Tipo: Text Palavras-chave: Ecological restoration; Native Oyster Restoration Alliance; Ostrea edulis. Ano: 2020 URL: https://archimer.ifremer.fr/doc/00659/77135/78451.pdf A physiological and biochemical approach to selecting the ideal diet for Ostrea edulis (L.) broodstock conditioning (part A) ArchiMer 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<C. gracilis<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 Registros recuperados: 225 Primeira ... 4 5 6 7 8 9 10 11 12 ... Última

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