I. Bogut et al., INFLUENCE OF LINOLENIC FATTY-ACID (18 3W3) ADDITIVE ON EUROPEAN SHEATFISH (SILURUS-GLANIS) GROWTH BRED IN CAGES/, Czech Journal of Animal Science, 43(3), 1998, pp. 133-137
Influence of linolenic fatty acid on productive results of sheat fish
(1+) of medium individual weight 149.0-151.1 g/piece was investigated
in an experiment. The feeding experiment was conducted in 4 treatments
and each treatment in 3 repetitions. Thirty fishes were stocked in ea
ch of 12 cages of 1 m(3) capacity. The fish from the control group was
fed by standard feed for sheat fish with 45% protein (FCF-Factory of
cattle feed Valpovo). Linolenic fatty acid was added to feed with the
same protein level in the first experimental group 0.5%, second 1.0% a
nd third 1.5%. Linolenic fatty acid efficiency was determined on the b
asis of yield feeding coefficient, SGR and PER value. The best results
were achieved from the second experimental feed. Fish yield was by 12
.6% higher and feeding coefficient by 12.9 lower than in the control g
roup. SGR and PER values were by 6.08% and 12.05% better than in the c
ontrol group. All above mentioned indicators in all 3 experimental gro
ups were highly significant in relation to the control (P < 0.01).