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| Registros recuperados: 26 | |
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| Goyard, Emmanuel; Goarant, Cyrille; Bachere, Evelyne; De Lorgeril, Julien; Mugnier, Chantal; Ansquer, Dominique; Broutoi, Francis; Brun, Pierre; Imbert, Frederic; Justou, Carole; Maillez, Jean-rene; Patrois, Jacques; Pham, Dominique; Peignon, Jean-marie. |
| The New-Caledonian shrimp industry is based on the controlled reproduction of the shrimp Litopenaeus stylirostris, a species which was introduced in the 80s. The major difficulty to which the industry has been faced for 10 years is the occurrence of the "syndrome 93", which corresponds to mortality phases when the temperature falls down in April-May-June. This mortality is associated to the pathogenic bacteria Vibrio penaecida and is expressed at different levels which are variable from year ta year and from pond to pond. No resistance to this pathology has been developed spontaneously. This is likely due to the protocole used to rear spawners, which does not allow to implement an efficient selective pressure at each generation An experimental selection... |
| Tipo: Text |
Palavras-chave: Amélioration génétique; P. styliroslris; Résistance; Syndrome 93; Lyzozyme; Genetic improvement; P. styliroslris; Résistance; Syndrome 93; Lyzozyme. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00109/22020/19643.pdf |
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| Pham, Dominique. |
| The ontogeny of osmoregulation was studied in the blue shrimp Litopenaeus stylirostris in New Caledonia. The implication of branchial organs in ionic regulation was first demonstrated in juveniles by immunolocalization of three ion transporting proteins ( namely NKA, co-transporter NKCC1 and CFTR ) and ionocyte detection was done by means of electron microscopy. The role of the main ion transporting enzyme, NKA, was subsequently investigated during post-embryonic development using an integrative approach associating physiological, histological, immunological and biomolecular studies. Results obtained allowed us to propose a model of the osmoregulatory pattern in L. stylirostris based on weak regulation in the early stages, then progressively this species... |
| Tipo: Text |
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| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00052/16314/13816.pdf |
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| Wabete, Nelly; Chim, Liet; Pham, Dominique; Lemaire, Pierrette; Massabuau, J. |
| The consequences of handling stress (fishing, transfer, eyestalk ablation) on shrimp broodstock are poorly documented. The weakness of farmed shrimp, Litopenaeus stylirostris, during winter is a major problem in New Caledonia, because of seasonal climate (tropical-sub-temperate). The transfer of broodstock in winter from earthen outdoor ponds to indoor maturation tanks in the hatchery (T=20 degrees C, Salinity=35 parts per thousand, fed shrimp) usually leads, after 48 h, to high mortality (up to 70%). Eyestalk ablation to induce ovarian maturation in females leads to further mortality. Starting from a background analysis of physiological disturbances (initial osmoregulatory imbalance) associated with handling stress (Wabete, N., Chim, L., Lernaire, P.,... |
| Tipo: Text |
Palavras-chave: Eyestalk ablation; Spawning; Handling stress; Broodstock; Litopenaeus stylirostris; Shrimp. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-1880.pdf |
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| Beliaeff, Benoit; Laugier, Thierry; Chim, Liet; Coatanea, Denis; Della Patrona, Luc; Goyard, Emmanuel; Herlin, Jose; Labreuche, Yannick; Lemaire, Pierrette; Lemonnier, Hugues; Morvan, Patrice; Patrois, Jacques; Peignon, Jean-marie; Pham, Dominique; Soulard, Benoit; Wabete, Nelly; Walling, Emilie; Ansquer, Dominique; Castex, Mathieu; Lucas, Ronan; Reynaud, Yann; Ifremer, LEAD-NC,. |
| Ce document constitue le bilan détaillé des résultats du projet DEDUCTION (2007-2010) , action par action. Le projet DEDUCTION "DEveloppement DUrable de la Crevetticulture, Traitement de l’Information et Observatoire du système en Nouvelle-Calédonie" est un projet de recherche et de développement en soutien à la filière crevetticole néo-calédonienne. C'est un programme très horizontal et pluridisciplinaire en poursuivant et développant les ouvertures scientifiques, techniques et thématiques établies à la faveur de DESANS. Son ossature s’articule autour de 4 actions : 3 actions de recherche et une action transversale devant faciliter les interfaces entre la recherche et sa finalité, entre les chercheurs et les partenaires locaux (GFA, Provinces,... |
| Tipo: Text |
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| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00199/31006/35663.pdf |
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| Goyard, Emmanuel; Goarant, Cyrille; Ansquer, Dominique; Brun, Pierre; De Decker, Sophie; Dufour, Robert; Galinie, C; Peignon, Jean-marie; Pham, Dominique; Vourey, Elodie; Harache, Yves; Patrois, Jacques. |
| Two populations of the Latin American shrimp Penaeus (Litopenaeus)stylirostris domesticated in Hawaii and in New Caledonia were previously shown to be genetically differentiated and proven highly inbred. In New Caledonia, where different Vibriosis affect shrimp production and antibiotic use is banned in growing ponds, the Hawaiian population was introduced to increase the allelic variability available for local shrimp farmers and start a genetic improvement program. Growth and survival rates of the two pure populations and the two-way F-1-hybrids obtained by breeding Hawaiian animals with New Caledonian animals were assessed in several simple experiments (earthen ponds, floating cages and experimental infection challenges) during two years on two... |
| Tipo: Text |
Palavras-chave: Vibriosis; Survival; Growth; Penaeus Litopenaeus stylirostris; Shrimp; Cross breeding; Genetic improvement. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4316.pdf |
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| Pham, Dominique; Vourey, Elodie; Ansquer, Dominique; Walling, Emilie. |
| Seawater, algae, micro-diets and Artemia are the main inputs in shrimp larval rearing. Each of them are potential carriers of pathogenic bacteria in the rearing media and weaken the animal in its early life stages. Daily monitoring of rearing water and larvae showed a bacterial spike after the first live feed meal. Vibrio settlement can be enhancedby giving Artemia with their incubation water where vibrio concentration can reach up to 105 CFU per milliliter. This study showed that simple measures such as rinsing and supplying Artemia with freshwater allowed a significant drop in their bacterial load. |
| Tipo: Text |
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| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/00118/22971/20801.pdf |
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| Registros recuperados: 26 | |
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