development of bile salt-dependent lipase in
larval turbot
K.
Hoehne-Reitan, E. Kjørsvik, D.R. Gjellesvik-2001
Journal
of Fish Biology, 58(3): 737-745
Abstract:
Pancreaticbile
salt-dependent lipase (BSDL) was present with 0·5µg BSDL larva-1from
hatching in turbot larvae. The enzyme content
increased during the yolk sac phase to 1·1µg BSDL larva-1.
This suggests that larval turbot are able to digest lipids from the start of exogenous feeding. The BSDL synthesis
was stimulated first by food about 5 days after the
onset of first feeding. The content per larva
increased exponentially in fed larvae to 20µg BSDL
larva-1on day 23 after hatching and decreased in starved larvae. In contrast, the specific content decreased during
the first feeding phase, meaning that smaller larvae
had a higher content of enzyme related to their biomass
than did bigger larvae.
(Norwegian University of Science and Technology, Department of Zoology,
Brattøra Research Centre, N-7491, Trondheim, Norway, Tel.: +47 73 59 03 21;
fax: +47 73 59 63 11;
E-mail: Katja.Hoehne@chembio.ntnu.no)