Effects of Enriched-rotifers as Feed on Four-spine Sculpin Larvae, <I>Cottus kazika</I>, in Seeding Production

DOI

Bibliographic Information

Other Title
  • カマキリの種苗生産におけるシオミズツボワムシの高度不飽和脂肪酸強化の効果について

Search this article

Abstract

Two feeding experiments were conducted to examine the effects of enriched rotifers with Chlorella regularis or frozen Nannochloropsis oculata, and or DHA-enriched Euglena gyacilis on four-spinesculpin larvae. There was no difference in the growth between all experiments. However the survival rate at 60th day after hatching in the group fed on rotifers enriched with C. regularis was lower (P<0.05) than that fed on rotifers enriched with DHA-enriched E. gracilis containing a higher level of DHA, the survival rate fed on rotifers enriched with the frozen N. oculata was the same as that fed on rotifers enriched with DHA-enriched E. gyacilis. As to the larvae fed on rotifers enriched with C. regularis, their developments of the skeleton were the latest, and the highest percentage occurrences of deformity in dorsal and anal proximal radial were detected. In conclusion, it became distinct that the rotifers enriched with DHA or EPA were effective in the seeding production of four-spine sculpin.

Journal

  • Aquaculture Science

    Aquaculture Science 51 (1), 109-115, 2003

    Japanese Society for Aquaculture Science

Keywords

Details 詳細情報について

Report a problem

Back to top