Tissue content, fecundity and quality of eggs and phyllosoma larvae after supplementing the diet of spiny lobster Jasus edwardsii broodstock with ascorbic acid-enriched Artemia biomass

摘要

Ascorbic acid (AA)-enriched Artemia in alginate pellets and unenriched pellets were fed to Jasus edwardsii broodstock to supplement AA intake of the basal diet (mussels, squid and compound prawn pellets) during ovarian development before egg extrusion. Pellet AA content ranged from 150 og gp# (unenriched) to 9153 og gp# (enriched). The basal diet (150 og AA gp#) was compared with low (150 og AA gp#), medium (450 og AA gp#) and high (1350 og AA gp#) AA supplementation. Dietary AA content was obtained using combinations of unenriched and AA-enriched Artemia in combination with the basal diet. Supplementation resulted in ovarian AA saturation at ~240 og gp#, a significant increase over 152 og gp# at time 0. Digestive gland concentrations were 76-92 og AA gp# for diets containing