title: Effect of dietary marine lipids on female white bass ova compositions and progeny survival.
abstract: We evaluated white bass ovum fatty acid composition as well as embryonic and larval survival after varying n-3 and n-6 long-chain polyunsaturated fatty acid (LC-PUFA) concentrations in maternal diets. Diets containing graded levels (0, 33, 66, or 100%) of squid to menhaden oils were fed daily to apparent satiation to female white bass for 8 weeks prior to spawning. Embryonic survival was negatively related to maternal squid oil intake (P=0.015, R2=0.970). Squid oil-fed broodstock produced ova with decreased 20:5n-3 and increased C18 polyunsaturated fatty acid concentrations, largely reflecting the fatty acid profile of squid oil. Within ovum phospholipid, accumulation of 18:2n-6 may have altered biological function resulting in the lower embryonic survival among ova produced from the squid oil-fed broodstock. Our data suggest the importance of feeding white bass broodstock diets high in total n-3 LC-PUFA (at least 4.0% dry matter), and 20:5n-3-rich lipid sources such as menhaden oil can be effectively utilized by female white bass to produce quality ova.
authors.affiliation: Fisheries and Illinois Aquaculture Center and Department of Zoology, Southern Illinois University Carbondale, Carbondale, IL 62901-6511, USA. hal7e7@siu.edu
authors.forename: H A
authors.initials: HA
authors.lastname: Lewis
authors.forename: J T
authors.initials: JT
authors.lastname: Trushenski
authors.forename: R L
authors.initials: RL
authors.lastname: Lane
authors.forename: C C
authors.initials: CC
authors.lastname: Kohler
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D017756:Aquaculture / Q000379:methods; D001492:Bass / Q000378:metabolism*; D002849:Chromatography, Gas; D019587:Dietary Supplements; D004625:Embryo, Nonmammalian / Q000187:drug effects; D015525:Fatty Acids, Omega-3 / Q000008:administration & dosage / Q000032:analysis / Q000494:pharmacology*; D043371:Fatty Acids, Omega-6 / Q000008:administration & dosage / Q000032:analysis / Q000494:pharmacology*; D005260:Female; D010063:Ovum / Q000737:chemistry* / Q000187:drug effects; D016019:Survival Analysis
chemical_list: D015525:Fatty Acids, Omega-3; D043371:Fatty Acids, Omega-6