15 SEPTEMBER 1999
GROWTH, SURVIVAL, LIPID AND AMINO ACID COMPOSITION IN STRIPED WOLFFISH, ANARHICHAS LUPUS, FED COMMERCIAL MARINE STARTER DIETS
L.C. Halfyard, D. Drover, C.C. Parrish, K. Jauncey-1997
Bulletin of the Aquaculture Association of Canada, 98-2 (contributing papers Aquaculture Canada '98): 41-43
Abstract:
The formulation of marine starter diets to coincide with the live Artemia-feeding stage poses nutritional and economical problems. In this study three commercial diets were examined as potential first-feeding diets for striped wolffish, Anarhichas lupus. Proximate composition, fatty acids, lipid classes, amino acids and other dietary factors were examined as criteria for selection of a commercial diet for wolffish. Diets fed to the fish over a 60-day period were comparable in terms of DHA:EPA ratios (1:1); however, diet 1 had the lowest phospholipid and taurine content while diets 2 and 3 had higher levels. After 60 days, fish fed diets 2 and 3 were significantly larger in wet weight and length, had better survival rates (diet 1 = 41%, diet 2 = 49%, diet 3 = 57%) and showed significant differences in threonine, taurine, EPA and DHA.
(Marine Institute, Memorial University of Newfoundland, St. John's, NF, Canada A1C 5R3)