Weaning of
juvenile pikeperch, Stizostedion lucioperca L., and perch, Perca
fluviatilis L., to formulated feed
L. Ljunggren, F. Staffan, S. Falk, B. Lindén, J. Mendes-2003
Aquaculture Research, 34(4): 281
Abstract:
Weaning success of pond-cultured pikeperch
and wild-caught perch (mean length 51 and 48 mm respectively) was
evaluated using different weaning techniques and different formulated feeds.
Juveniles that were fed formulated feed grew as well as or better than
juveniles that were weaned successively using zooplankton or yolk. Four
different formulated feeds (agglomerated marine larvae feed, marine larvae
feed, trout feed and a semi-moist feed) were evaluated regarding specific
growth rate (SGR), condition factor and a subjective stomach fullness
estimate. The agglomerated marine larvae feed gave significantly better
weaning performance than the other feeds regarding all parameters (SGR = 7.3% day
-1
and 3.4% day
-1
for pikeperch and perch respectively).
(Department of Aquaculture, Swedish University of
Agricultural Sciences, Umeå, Sweden)