Lipids in eggs from first‐time and repeat spawning Atlantic halibut,Hippoglossus hippoglossus(L.)

摘要

AbstractThe production of viable larvae is critical to any aquaculture venture. Since lipids are important components of fish eggs, the amount and nature of the lipid may be crucial to the survival of the larvae. In this study the lipid content of unfertilized eggs from first‐time and repeat spawning Atlantic halibut females was compared. The egg lipid content for the first‐time spawner ranged from 0·18 to 0·41mg/egg; the range for the repeat spawner was 0·27 to 0·38mg/egg. However, the mean total lipid per egg values were similar for both fish at ca. 0·31mg/egg. The repeat spawner prodticed more eggs than the first‐time spawner, thus allocating more lipid to egg production. In the eggs from the two fish 62–84 of the lipids was