양어사료의 어분대체원으로서 수산가공부산물의 이용 : 1. 고등어 가공부산물의 효소척 가수분해물의 성장효과 = Availability of Marine By-Product Substituted for Fish Meal : 1. Growth Effects of Mackerel By-Product Hydrolysates in Korean Rockfish Feeds

다국어 초록 (Multilingual Abstract)

The effects of different dietary enzymatic hydrolysates using mackerel by-product on growth
and chemical composi단ons of korean rockfish were studied. Fishes were fed four experimental
diets containing 60% white fish meal, 45% white fish meal and 15% mackerel hydrolysate
whole, 45% white fish meal and 15% mackerel hydrolysate 500(molecular weight cutoff), and
45% white fish meal and 15% mackerel hydrolysate 5,OOO(molecular wei방lt cutoff), respectively.
In korean rockfish, effects on the wei방lt gain and feed efficiency in enzymatic hydrolysates
using mackerel by-products addition group were very effective. Weight gain ratios of enzymatic
hydrolysates addition group were increased at 419.6-446.7%, compared with 385.2% at control
group after eight weeks growth trial. Crude protein and crude lipid contents in the dorsal
musc1e of fishes fed diets supplemented with enzymatic hydrolysates were hi방ler than fishes
fed diet without enzymatic hydrolysates, while the moisture and crude ash contents in the
dorsal musc1e did not show any remarkable differences among diet groups with enzymatic
hydrolysates or without. In korean rockfish, total amino acids of enzymatic hydrolysates
addition group were 3，507.6-3，571.01멜%， compared with 3，379.7뼈% at control group after eight
weeks growth trial. Fatty acid composi히ons of dorsal musc1e were not affected by the different
dietary i high levels of 14:0 from saturated, 14:1 from monoenoic, 18:2n-6 and 20:2n-6 from
polyenoic.