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| Registros recuperados: 28 | |
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| Beliaeff, Benoit; Chim, Liet; Della Patrona, Luc; Goyard, Emmanuel; Herlin, Jose; Labreuche, Yannick; Walling, Emilie; Ansquer, Dominique; Brun, Pierre; Castex, Mathieu; Coatanea, Denis; Courties, Claude; De Lorgeril, Julien; Dufour, Robert; Frappier, Julie; Goarant, Cyrille; Huber, Matthias; Lemaire, Pierrette; Lemonnier, Hugues; Loubersac, Lionel; Le Roux, Frederique; Lucas, Ronan; Patrois, Jacques; Peignon, Jean-marie; Pham, Dominique; Ramage, Yannick; Soulard, Benoit; Vic, Marlene; Vourey, Elodie; Wabete, Nelly. |
| New Caledonian shrimp farming feasibility studies started in the mid-seventies. Today ca. 2000 tons of Litopenaeus stylirostris, introduced in 1978, are semi-intensively produced each year. Since fifteen years, production has been impacted by two seasonal vibriosis, the “Summer” syndrome caused by Vibrio nigripulchritudo in relation to pond bottom and water column quality, and the “Winter Syndrome” caused by Vibrio penaeicida in relation to drastic temperature drops . With the ambition of elucidating processes possibly leading to mortality outbreaks in ponds, Ifremer has been conducting a research program since 2003 under the DESANS project (2003-2006) and the present DEDUCTION project, equally funded by the South and North Provinces and by the Government... |
| Tipo: Text |
Palavras-chave: Shrimp farming; Technical and scientific support; Vibriosis; Water quality; Pathology; Ecophysiology; Genetics; Zoosanitary monitoring and procedures; Multifactorial and multidisciplinary approach. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/00143/25438/23591.pdf |
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| Cardona, Emilie; Saulnier, Denis; Lorgeoux, Benedicte; Chim, Liet; Gueguen, Yannick. |
| This study compares the antioxidant and antimicrobial transcriptional expression of blue shrimps reared according to two different systems, BioFloc Technology (BFT) and Clear sea Water (CW) and their differential responses when facing an experimental sublethal hydrogen peroxide stress. After 30 days of rearing, juvenile shrimps were exposed to H2O2 stress at a concentration of 30 ppm during 6 hours. The oxidative stress caused by H2O2 was examined in the digestive glands of the shrimp, in which antioxidant enzyme (AOE) and antimicrobial peptide (AMP) gene expression were analysed by quantitative real-time PCR. Results showed that rearing conditions did not affect the expression of genes encoding AOEs or AMPs. However, H2O2 stress induced a differential... |
| Tipo: Text |
Palavras-chave: Biofloc; Shrimps; Antimicrobial peptides; Antioxidant enzymes. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00270/38116/36269.pdf |
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| Castex, Mathieu; Lemaire, Pierrette; Wabete, Nelly; Chim, Liet. |
| in this study we evaluated the effects of the probiotic Pediococcus acidilactici MA18/5M on shrimp, Litopenaeus stylirostris (also called Penaeus stylirostris), first on antioxidant defences and secondly on the oxidative stress status in the shrimps' haemolymph and digestive gland. We conducted two experiments with the same protocol in which shrimps were fed two diets for three weeks: a control diet and a probiotic diet containing 1 g of live P. acidilactici MA18/5M kg(-1). In the first experiment, the shrimps were found to be healthy over the trial period; no mortalities and non-detectable signs of infection were recorded. These resulted in high final survival rates (above 90% in both treatments). On the other hand, during the second trial, carried out at... |
| Tipo: Text |
Palavras-chave: Vibriosis; Antioxidant defences; Oxidative stress; Probiotic; Shrimps. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6780.pdf |
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| Pham, Dominique; Wabete, Nelly; Maillez, Jean-rene; Broutoi, Francis; Chim, Liet. |
| In aquaculture, Artemia nauplii are commonly used as live prey; and represent 40 % of the total aquaculture feed demands in the early stages. However, the production of Brine shrimp is very unstable from one year to another and in the late 90’s, only 20 % of the world aquaculture need was covered. An insufficient offer leads to higher prices of the Artemia cysts and consequently, the price of shrimp juveniles from hatchery. In New Caledonia, marine aquaculture is mainly based on the blue shrimp Litopenaeus stylirostris. From Zoea 3 to 10 days old post-larvae (P10), the shrimp are mainly fed with live preys. Eleven kilos of Artemia cyst are necessary for producing one million of P10. From a sanitary point of view, Artemia can be a virus carrier and Vibrio... |
| Tipo: Text |
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| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/00198/30877/29245.pdf |
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| Castex, Mathieu; Chim, Liet; Pham, Dominique; Lemaire, Pierrette; Wabete, Nelly; Nicolas, Jean-louis; Schmidely, P; Mariojouls, C. |
| We studied the effects of a lactic acid bacterium, Pediococcus acidilactici (strain MA 18/5M, CNCM), as a dietary probiotic on growth performance and some nutritional and microbiological aspects of the shrimp Litopenaeus stylirostris. Experimental shrimp culture was carried out over 10 weeks, using floating cages of 14 m(2) each set in earthen ponds, in a New Caledonia farm affected by "Summer syndrome", a septicaemic vibriosis caused by Vibrio nigripulchritudo. The experiment design testing probiotic-coated pellets against control was replicated in two earthen ponds. High mortalities, characteristic of Summer syndrome, were observed during the first 2 weeks of the trial. The probiotic improved production in the treated cages from both ponds with increases... |
| Tipo: Text |
Palavras-chave: Vibriosis; Floating cages; Litopenaeus stylirostris; Pediococcus acidilactici; Probiotic. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4079.pdf |
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| Castex, Mathieu; Lemaire, Pierrette; Wabete, Nelly; Chim, Liet. |
| Antioxidant defences and induced oxidative stress tissue damage of the blue shrimp Litopenaeus stylirostris, under challenge with Vibrio nigriputchritudo, were investigated for a 72-h period. For this purpose, L stylirostris were first infected by immersion with pathogenic V. nigripulchritudo strain SFn1 and then antioxidant defences: superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (Gpx), Total antioxidant status (TAS), glutathiones and induced tissue damage (MDA and carbonyl proteins) were determined in the digestive gland at 0, 12, 24, 48 and 72 h post-infection (h.p.i.). In the meantime, TAS was also measured in the blood. Infection level of the shrimps during the challenge was followed by determining V. nigripulchritudo prevalence... |
| Tipo: Text |
Palavras-chave: Probiotic; Pediococcus acidilactici; Shrimp; Oxidative stress; Antioxidant status; Vibrio; Immersion challenge. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00003/11419/7984.pdf |
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| Coulombier, Noemie; Chim, Liet; Le Dean, Loic; Morezzi, Nicola; Brun, Pierre; Malo, Florent; Nakagawa, Kento; Ducrocq, Manuel; Rivaton, Adrien; Colin, Fabrice. |
| AMICAL is a partnership program of research and innovation between ADECAL TECHNOPOLE (New Caledonia innovation and technology park) and IFREMER to initiate the development of a microalgae industry in New Caledonia, based on selected local strains. This French oversea territory, located in south Pacific, features many competitive advantages for the development of a blue economy industry (climate, biodiversity hotspot, well developed aquaculture sector...). The project relies on two laboratories (Figure 1) owned and managed by ADECAL TECHNOPOLE with the scientific support of IFREMER: • the Laboratory for MicroAlgae study (LEMA), whose scientific direction is provided by the laboratory of Physiology and Biotechnology of Algae (PBA, IFREMER, Nantes),... |
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| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00358/46897/46783.pdf |
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| Doudard, Karine; Chim, Liet; Arhaliass, Abdellah; Przybyla, Cyrille; Baron, Regis. |
| This work focuses on available bio resources transformation such as by-catches or fish by-products and marine plants (seaweed and microalgae) as ren circuit . The objective is to make this production as autonomous and sustainable as possible and fitted to the idea of circular economy. Thanks to previous projects, it seems that by-catches could be a plentiful source of proteins for fish. The challenge associated with this type of aquaculture formulations relies on the ability to incorporate abundant resources readily available and the significant reduction of certain energy‐consuming steps (such as drying) in order to minimize the environmental impact of a fish feed production. The adequacy of this strategy (fresh raw material and wet feed) with a... |
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| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00456/56736/58525.pdf |
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| Castex, Mathieu; Chim, Liet; Lemaire, Pierrette; Wabete, Nelly; Pham, Dominique. |
| Scientific and technical studies carried out under semi-intensive farming conditions, with large earthen ponds (Fig 1), to assess the effects of treatments on zootechnical results are highly complex due to the many logistical, economic and/or experimental constraints involved. In our study, we evaluated the use of floatingcages (Paquotte et al., 1998) immersed in earthen ponds as an experimental tool in order to design future powerful and economical expe-riments under semi-intensive farming conditions. |
| Tipo: Text |
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| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/00197/30872/29240.pdf |
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| Lemaire, Pierrette; Bernard, Eric; Martinez-paz, J; Chim, Liet. |
| In New Caledonia, the "syndrome 93," which results in mass mortalities of farmed shrimp Penaeus stylirostris, occurs during the transitional and the cold seasons. The transitional season is characterized by an important fall in the average water temperature from 28 to 19 degreesC in 2 weeks. Besides this marked temperature fall, there are also nyctemeral temperature changes of up to 7 degreesC in 12 h. The cold season is characterized by an average water temperature of 19 degreesC with extreme lows of 14 degreesC. The objective of this study was to determine the effect of temperature and its variations on the osmoregulatory capacity of juvenile (7-10 g average weight) and subadult (25 g average weight) shrimps subjected to conditions of different salinity.... |
| Tipo: Text |
Palavras-chave: Temperature; Salinity; Osmoregulatory capacity; Penaeus stylirostris; Shrimp. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/2002/publication-395.pdf |
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| Castex, Mathieu; Chim, Liet; Lemaire, Pierrette; Wabete, Nelly. |
| In recent years the biological control of diseases by environmental friendly methods such as probiotics has become an important subject of investigation in aquaculture research. Probiotics are live microorganisms which when administrated in adequate amounts confer a health benefit on the host . In the last 4 years, IFREMER in collaboration with Lallemand company, have carried out researchs in New Caledonia with the aim to assess the probiotic strain P. acidilactici MA 18/5M on farmed shrimp Litopenaeus stylirostris.This project started in 2005 demonstrated the beneficial effects of the probiotic Pediococcus acidilactici dietary supplementation on the nutrition and the health status of peneid shrimps and highlighted that its use as probiotic can be part of... |
| Tipo: Text |
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| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/00197/30873/29241.pdf |
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| Nguyen, Ngoc Thi Bich; Chim, Liet; Lemaire, Pierrette; Wantiez, Laurent. |
| There has been growing interest in the development of mud crab aquaculture in New Caledonia. However, for this to become established at a commercial level, a cost-effective formulated feed based on internationally-available ingredients needs to be developed. We have evaluated the optimal dietary protein content for juvenile crabs, Scylla serrata (Forskål, 1775), using a series of diets with a protein content ranging from 27 to 49% and soy protein concentrate (SPC) as the main protein source. For this purpose, 54 individually housed crabs were allocated to five dietary treatments (n = 10 or 11). The crabs were fed ad libitum, for 81 days with the allocated diets. The apparent digestibilities of dry mater, crude protein and energy were high (96.2-97.3%),... |
| Tipo: Text |
Palavras-chave: Scylla serrata; Tissue growth; Feed efficiency; Protein requirement; Soy protein concentrate; Energy budget. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00211/32196/30630.pdf |
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| Registros recuperados: 28 | |
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