IMIS | Flanders Marine Institute

Flanders Marine Institute

Platform for marine research

In:

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (1): add | show Printer-friendly version

one publication added to basket [2567]
Effect of algal ration and substitution of algae by manipulated yeast diets on the growth of juvenile Mercenaria mercenaria
Coutteau, P.; Hadley, N.H.; Manzi, J.J.; Sorgeloos, P. (1994). Effect of algal ration and substitution of algae by manipulated yeast diets on the growth of juvenile Mercenaria mercenaria. Aquaculture 120(1-2): 135-150
In: Aquaculture. Elsevier: Amsterdam. ISSN 0044-8486, more
Peer reviewed article

Also published as
  • Coutteau, P.; Hadley, N.H.; Manzi, J.J.; Sorgeloos, P. (1994). Effect of algal ration and substitution of algae by manipulated yeast diets on the growth of juvenile Mercenaria mercenaria, in: (1994). IZWO Coll. Rep. 24(1994). IZWO Collected Reprints, 24: pp. chapter 10, more

Available in Authors 

Keywords
    Algae; Aquaculture techniques; Clam culture; Diets; Food organisms; Growth; Yeasts; Mercenaria mercenaria (Linnaeus, 1758) [WoRMS]; Marine

Authors  Top 
  • Coutteau, P., more
  • Hadley, N.H.
  • Manzi, J.J.
  • Sorgeloos, P., more

Abstract
    The development of a cost-effective algal substitute would greatly reduce the operating costs of bivalve hatcheries. Previous work has resulted in the development of a yeast diet with improved digestibility and nutritional composition. The use of this yeast product as a partial algal substitute for the culture of juvenile hard clams Mercenaria mercenaria was investigated in a series of growth experiments. Juveniles of the hard clam (1 mg live weight) were batch cultured in a 1 8 1 recirculating system for 2 or 3 weeks. The optimal weight-specific daily ration for a mixture (50/50 on dry weight basis) of Isochrysis galbana (clone T-Iso) and Chaetoceros gracilis was found to be 1.5 to 2% dry weight per wet weight of seed. Replacing 50% of the algal ration by yeast did not result in a significant decrease in growth rate relative to the algal-fed controls. The substitution of 80% of the algal diet resulted in growth rates reaching 90% compared with those obtained for the algal-fed controls. The incorporation in the yeast diet of fat-soluble vitamins, rice starch, or an extract from macro-algae did not improve its nutritional value. However, the addition of kaolin occasionally resulted in a significantly higher growth rate. The present results are compared with previous reports on the use of yeasts for nursery rearing of bivalves.

 Top | Authors