Publications | Persons | Institutes | Projects
[ report an error in this record ]basket (0): add | show Print this page
Manipulated yeast diets and dried algae as a partial substitute for live algae in the juvenile rearing of the Manila clam Tapes philippinarum and the Pacific oyster Crassostrea gigas
Coutteau, P.; Dravers, M.; Dravers, P.; Léger, P.; Sorgeloos, P. (1993). Manipulated yeast diets and dried algae as a partial substitute for live algae in the juvenile rearing of the Manila clam Tapes philippinarum and the Pacific oyster Crassostrea gigas, in: Barnabé, G. et al. (Ed.) Production, environment and quality: Proceedings of the International Conference Bordeaux Aquaculture '92, Bordeaux, France, March 25-27, 1992. EAS Special Publication, 18: pp. 523-531
In: Barnabé, G.; Kestemont, P. (Ed.) (1993). Production, environment and quality: Proceedings of the International Conference Bordeaux Aquaculture '92, Bordeaux, France, March 25-27, 1992. Special Publication European Aquaculture Society, 18. European Aquaculture Society: Gent. 587 pp., more
In: Special Publication European Aquaculture Society. European Aquaculture Society: Bredene. ISSN 0774-0689, more
Available in  Authors 
Keyword
    Marine/Coastal
Authors  Top 
  • Coutteau, P., more
  • Dravers, M.
  • Dravers, P.
  • Léger, P.
  • Sorgeloos, P., more
Abstract
    The development of a cost-effective artificial diet would greatly reduce the operating costs and improve the efficiency of bivalve seed production. The present study documents the use of a manipulated yeast diet and dried algae (Tetraselmis suecica, Cyclotella cryptica) as an 80% substitute for live algae under the conditions of a commercial bivalve hatchery. Juveniles of the Manila clam T. philippinarum and of the Pacific oyster C. gigas were grown in a 28l recirculating system for three weeks. In addition, a preliminary flow-through culture test was performed with C. gigas. Supplementing manipulated yeasts improved the growth rate of juvenile clams and oysters fed 20% of the algal ration from 30-40% to 70-80% of that observed for the algae-fed controls over a period of 3 weeks. The yeast diet supported similar clam growth as the dried T. suecica and better oyster growth than the dried C. cryptica. Substituting 80% of the algal ration by either the yeast diet or dried T. suecica in the flow-through experiment with C. gigas resulted in a growth rate exceeding 90% of that observed for the algae-fed controls during the first week of the experiment. During the second week of the test this relative growth rate was only maintained by oysters fed the 20/80% algae/dried T. suecica diet. Further research is needed to define the optimal food levels of the yeast diets in continuous flow cultures.
All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors