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다양한 형태의 곳체다슬기 (Semisulcospira gottschei) 치패용 배합사료에 대두박과 소맥분 이용성
황규덕 ( Hwang Gyu Deog ),김이오 ( Kim I O ),박종호 ( Park Jong Ho ),방인철 ( Bang In Cheol ),김경덕 ( Kim Gyeong Deog ),장현석 ( Jang Hyeon Seog ),이상민 ( Lee Sang Min ) 한국수산과학회 2003 한국수산과학회지 Vol.36 No.5
N/A A feeding trial was carried out to investigate the utilization of dietary soybean meal and wheat flour as substitutes for fish meal and alginate in different dietary types (powder, pellet and flake) for juvenile snail (Sernisulcospira gottschei). After 10 weeks feeding trial, survival was not affected by formulation and type of diets (P>0.05), but weight gain was significantly affected by dietary formulation (P<0.001 ) and type (P<0.05). In the same dietary formulation, weight gain of the snail fed the flake type of diets was lower than that of the snail fed the powder or pellet types. However, the type of diet did not affect weight gain when snail fed diets containing 37% soybean meal and 18% alginate. The weight gain was lower in the snail fed diets containing 25% fish meal compared with that of the snail fed diets containing 33-37% soybean meal at the same dietary type. When soybean meal was used as main protein source in diets, weight gain was not affected by dietary alginate (0 and 18%) and wheat flour (36 and 58%) contents. Crude protein and ash contents of whole body of the snail was not affected either by formulation or by type of diet. Moisture and crude lipid contents of the whole body were significantly affected by dietary formulation, but not by the type. These results indicate that 25% fish meal could be replaced by 37% soybean meal as dietary protein source, and pellet and powder could be desirable dietary type for the optimum growth of the snail.
넙치 (Paralicthys olivaceus) 치어용 배합사료에 콩비지 첨가가 성장 및 체성분에 미치는 효과
이상민 ( Lee Sang Min ),김경덕 ( Kim Gyeong Deog ),장현석 ( Jang Hyeon Seog ),이용환 ( Lee Yong Hwan ),이종관 ( Lee Jong Gwan ),이종하 ( Lee Jong Ha ) 한국수산과학회 2003 한국수산과학회지 Vol.36 No.6
N/A This study investigated the effect of soybean-curd residues as an ingredient of the formulated diet for juvenile flounder (Paralichthys olivaceus). Three replicates of juvenile fish (averaging weight 1.5 f 0.04 g) were fed one of four isonitrogenous (50%) diets containing O%, 5%, 10% and 15% soybean-curd residues for 7 weeks. Survival, hepatosomatic index and condition factor of the fish were not affected by dietary soybean-curd residues levels. Weight gain, feed efficiency and protein efficiency ratio of the fish fed the diet containing 5% soybean-curd residues were not significantly different to those of the fish fed the control diet, however these values decreased in the fish fed the 10% and 15% soybean-curd residues (P<0.05). Daily feed and protein intake increased with increasing dietary soybean-curd residues level. Crude protein and lipid contents in the whole body decreased with increasing dietary soybean-curd residues, but no significant differences were observed among control, 5% and 10% soybean-curd residues diets (P>0.05). Plasma total protein concentration of fish was affected by dietary soybean-curd residues levels (P<0.05). It is concluded that the soybean-curd residues as a substitute for wheat flour can be included up to 5% in the diet for juvenile flounder.