SUPLEMENTASI CRUDE ENZIM PAPAIN DALAM PAKAN PEMBESARAN IKAN BERONANG, Siganus guttatus
Abstract: In intensive fi sh
farming, feed costs can reach up to 70% of the total cost production, so that
its effi ciency needs to be improved. The aims of this study were to improve fi
sh growth rate and feed effi ciency for rabbit fi sh grow-out through
supplementation of crude papain enzyme in the feed. Test fi sh were juvenile of
rabbitfi sh, Siganus guttatus, with average initial weight of 40±3.5 g. Fish
were stocked in 12 of 1×1×2 m3 fl oating net cages with density of 16 fi sh/cage.
As dietary treatments were different dosages of crude papain enzyme namely (A)
0%, (B) 0.0125%, (C) 0.025%, and (D) 0.050%. The rabbitfi sh were fed to
satiation in the morning and afternoon for 120 days. The results showed that
specifi c growth rate, survival rate of the fi sh, feed effi ciency, protein effi
ciency ratio, and the level of feed intake were not signifi cantly different
(P>0.05) among treatments. However, there was a tendency that increasing of
supplementation level of crude papain enzyme in diets, fi sh growth rate, feed
effi ciency, and protein effi ciency ratio also increased.
Keywords: Crude enzyme papain,
feed and protein effi ciency, growth, rabbitfi sh
Penulis: Usman, Asda Laining,
Erik Sutikno
Kode Jurnal: jpperikanandd140570
