• Fisheries and Aquatic Sciences
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• 제17권2호
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• pp.249-253
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• 2014

An 8-week feeding experiment was conducted to determine the influence of dietary distillers dried grain (DDG) on the growth and body composition of juvenile abalone Haliotis discus hannai. Five diets were formulated to contain 0% (DDG0), 15% (DDG15), 30% (DDG30), 45% (DDG45), and 60% (DDG60) DDG, and three replicate groups of abalone (average body weight: $3.6{\pm}0.21$ g) were fed one of the experimental diets at a feeding rate of 5% body weight per day once daily (17:00 h) for 8 weeks. Survival, shell length, and shell width of juvenile abalone were not affected by dietary DDG levels (P > 0.05). Weight gains of juvenile abalone fed DDG15 and DDG30 diets were not different compared to DDG0, but abalone fed DDG45 and DDG60 diets gained less weight than those fed DDG0 (P < 0.05). Soft body weight/body weight ratio of juvenile abalone fed the DDG60 diet was lower than that of those fed the DDG0 diet (P < 0.05), but proximate composition of the soft body was not affected by dietary DDG levels (P > 0.05). The results of this experiment suggest that DDG is a good replacement for wheat flour and soybean meal, and can be used up to 30% in the diet to maintain the growth performance of the juvenile abalone.

• 한국양식학회지
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• 제11권1호
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• pp.31-38
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• 1998

A 20-week growth trial was conducted in flow-through aquarium system to investigate the effects of supplemental macroalgae and spirulina in the diets on growth and body cmposition in juvenile abalone (Haliotis discus hannai). Four replicate groups of the abalone averaging 65mg were fed one of ten isonitrogenous (34%) and isolipidic (7.5%) diets containing 8.1% Ulva, 7.5% Undaria, 11% Laminara, 11% Sargassum, spirulina (5, 10 and 15%), or dried Undaria powder (10 and 20%). In addition, these formulated diets were compared with natural food(dried Undaria). Survival rate of abalone were not significantly affected by the different dietary macoralgae sources, spirulina or dried Undaria powder levels (P>0.05). Weight gain and soft body weight of abalone fed the diet containing Sargassum was significantly higher (P<0.05) than those of abalone fed the diets containing Laminaria, 20% dried Undaria powder and natural food. Survival rate, weight gain, soft body weight and shell length of abalone fed natural food were lowest (P<0.05) among all diet. Moisture, protein and lipid contents of soft body were not influenced by experimental diets except natural food. Lipid content of abalones fed natural food was significantly lower than those of abalone fed other diets (P<0.05). These data indicate that abalone can more efficiently utilize Sargassum than Ulva, Undaria, Laminaria or spirulina.

• Fisheries and Aquatic Sciences
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• 제18권2호
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• pp.159-164
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• 2015

A feeding experiment was conducted to determine the effect of dietary distillers dried grain (DDG) on the growth and body composition of juvenile abalone, Haliotis discus hannai. Three diets were formulated to contain 0% (DDG0), 30% DDG (DDG1) replacing wheat flour and 30% DDG (DDG2) replacing fish meal and wheat flour. A commercial feed (CF) was also compared with experimental diets. Three replicate groups of abalone averaging $0.6{\pm}0.01g$ were fed one of the four diets for 14 weeks. The highest survival rate was observed in the abalone fed the DDG2 diet, which was higher than that of abalone fed the DDG0 diet. Weight gain, shell length, shell width and soft body weight of the abalone were not affected by dietary DDG and CF diet (P > 0.05). Proximate and amino acid composition of the soft whole body were not affected by dietary DDG and CF diet (P > 0.05). The result of this experiment suggests that DDG is a good ingredient to replace fish meal and wheat flour in the diet and could be used up to 30% in the diet without negative effects on the growth performance of juvenile abalone Haliotis discus hannai.

• 한국수산과학회지
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• 제50권6호
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• pp.738-744
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• 2017

Effect of dietary inclusion of microalgae, diatom-dominant, oil extracts (MOE) on growth, body composition and shell color of juvenile abalone Haliotis discus was investigated. One thousand four hundred and seventy juvenile abalone were distributed into 21 plastic rectangular containers. Seven experimental diets were prepared: MOE0, MOE0.01, MOE0.05, MOE0.1, MOE0.5, MOE1 and MOE2 diets containing MOE at the concentrations of 0, 0.01, 0.05, 0.1, 0.5, 1 and 2% at the expense of mixture of squid liver and soybean oils, respectively. The experimental diets were fed to abalone in triplicate once a day with a little leftover for 16 weeks. Weight gain and specific growth rate of abalone fed the MOE1 and MOE2 diets were higher than those of abalone fed the all other diets. The shell length and soft body weight of abalone fed the MOE2 diet were longer and heavier than those of abalone fed the all other diets. Crude protein and ash content of the soft body of abalone were affected by dietary inclusion of MOE. The shell color of abalone fed the all experimental diets was different from that of wild abalone. In conclusion, dietary inclusion of MOE improved growth of abalone, but did not shell color of abalone.

• 한국수산과학회지
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• 제44권5호
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• pp.560-564
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• 2011

Two feeding experiments were conducted to investigate the effects of dietary inclusion of genetically modified (GM) soybean and corn on the growth performance, feed utilization and body composition of juvenile abalone Haliotis discus hannai. Four isonitrogenous (31% crude protein) and isolipidic (6% crude lipid) diets (designated as nGM-soya, GM-soya, nGM-corn and GM-corn) were formulated to contain 20% non-GM (nGM) and GM soya and corn. Fifty juvenile abalone (initial body weight, 2.0 g) were distributed in each 50 L tank in a flow-through system. Each experimental diet was fed to duplicate groups of abalone to satiation once a day for 10 weeks. No effects of GM feedstuffs on survival were observed. Dietary inclusion of GM feedstuffs did not affect either growth performance or feed utilization of abalone. Body composition was not altered by the inclusion of GM feedstuffs. These results indicate that dietary inclusion of GM soybean and corn could have no effect on the growth performance and body composition of juvenile abalone. Further studies to investigate the effects of GM feedstuffs on transgenic fragment residues in ambient environments and in animals are necessary for the safe use of such ingredients in aquaculture.

• 한국양식학회:학술대회논문집
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• 한국양식학회 2003년도 추계학술발표대회 논문요약집
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• pp.73-73
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• 2003

This study was carried out to evaluate the utilization of fermented skipjack tuna viscera (FSTV) in the diet for juvenile abalone Haliotis discus hannai. Lactobacillus bulgaricus was used for fermentation of skipjack tuna viscera. Eight isonitrogenous (about 30% crude protein) diets were formulated to include different levels (0%, 10%, 20% and 30%) of FSTV as a replacer of either dietary fish meal or soybean meal. Three replicate groups of abalone were fed the experimental diets containing different levels of FSTV for 7 weeks. The inclusion of FSTV up to 30% in fish meal-based diet had no significant effect on survival, body weight, shell growth, and proximate composition of abalone (P>0.05). Weight gain of abalone fed the diet substituting 10% FSTV for soybean meal was not significantly different to that of abalone fed the control diet, however this value decreased in abalone fed the 20% and 30% FSTV (P<0.05).The contents of crude protein and lipid of soft body in abalone fed soybean meal-based diets were significantly affected by dietary FSTV level (P<0.05). The results of this study indicate that FSTV can be used as a partial substitute protein source for fish meal or soybean meal in the formulated diet for juvenile abalone.

• 한국양식학회지
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• 제11권4호
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• pp.505-512
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• 1998

이미 연구된 참전복용 경제적인 실험 배합사료로 까막전복과 시볼트전복에 대한 효과를 평가하기 위해 기존의 상품사료 및 미역과 비교하였다. 3 종류의 전복 모두 평균 체중 0.31g 인 치패를 각 사료마다 3반복으로 9주간 사육한 결과 ,체중 및 패각성장은 동일 전복종류내에서는 배합사료를 공급한 실험구들이 미역 공급구보다 성장이 좋았고(P<0.05), 동일 사료내에서는 시볼트전복, 까막전복, 참전복 순으로 성장이 좋았다(P<0.05). 생존율은 시볼트전복과 까막전복이 97~99%로 참전복의 74~77%에 비해 높았으며(P<0.05), 각 전복 종내에서의 사료 종류별로는 그 유의차가 인정되지 않는다(P>0.05). 전복 가식부의 일반 성분은 전복종류 및 사료종류에 따라 차이를 보였다. 이상의 결과로부터 본 실험에서 사용된 배합사료들은 3종류 전복 모두에 실용적인 사료가 될 것으로 기대된다.

• 한국양식학회지
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• 제12권4호
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• pp.317-322
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• 1999

A growth trial was conducted to investigate the utilization of wheat germ meal as a protein source of formulated diet for juvenile abalone (Haliotis discus hannai). Four replicate groups of the abalone average weighing 150mg were fed one of four isonitrogenous (33%) and isolipidic (6%) diets containing 0%, 10%, 20%, or 30% wheat germ meal for 18 weeks. In addition, these formulated diets were compared with commercial diet. Survival rate, weight gain, soft body weight , and shell growth of abalone fed diets containing 0%, 10%, 20%, or 30% wheat germ meal were not different (P>0.05) from those of abalonn fed the control diet and commercial diet. There were no significant differences (P>0.05) in soft body composition of moisture, protein and lipid. It si concluded that wheat germ meal were be used as a partial protein source of formulated diet for juvenile abalone.

• 한국식품저장유통학회지
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• 제20권4호
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• pp.441-450
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• 2013

전복의 기능성과 성분에 대한 연구와 한국 전복의 지역별 성분특성에 대한 연구는 거의 없는 실정이다. 본 연구에서는 한국의 주요 전복 생산지인 완도를 중심으로 남쪽인 제주도와 북쪽인 흑산도 전복의 육과 내장에 대하여 일반성분, 미네랄, 아미노산, 지방산 및 콜라겐 함량을 비교 분석하였다. 전복내장 중의 수분과 단백질 함량은 전복육에 비하여 낮은 경향을 보였으나 지방과 탄수화물 함량은 더 높았다. 지역간 전복의 일반성분과 미네랄 함량은 다소 차이가 있는 것으로 나타났으며 수온이 낮은 지역일수록 지방함량이 약간 높았다. 전복내장의 구성아미노산 함량은 93.6~127.02 mg/g이었으며 이는 전복육의 평균 145 mg/g에 비해 낮은 편이었다. 반면에 전복내장의 유리아미노산 함량은 16.81~20.10 mg/g으로 전복육의 7.90~10.59 mg/g에 비하여 2배 높은 값을 보였다. 전복육의 총 구성아미노산 지역별 차이는 없으며 전복내장의 결과를 살펴볼 때 완도와 흑산도 높고 제주도 낮은 것을 나타났다. 전복육 총 유리아미노산은 완도 전복은 가장 높았으며 이어서 흑산도와 제주도 순이었고 내장의 경우는 완도, 제주도와 흑산도 순으로 총 유리아미노산 함량이 낮아졌다. 전복육의 지방산조성은 불포화지방산이 약 41%로 포화지방산 약 31%에 비하여 높았으며, 전복육보다 전복내장이 높은 결과를 보였다. 콜라겐 함량은 완도 전복육에서 $2.26{\pm}0.46mg/g$으로 가장 높았으며 이어서 제주도와 흑산도 순이었다. 전복내장에서는 $0.20{\pm}0.03{\sim}0.37{\pm}0.15mg/g$으로 전복육보다 낮은 값을 보였다. 본 연구 결과는 향후 전복에 관한 연구에서 유용한 정보로 활용될 수 있을 것으로 기대된다.

• 한국양식학회지
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• 제13권1호
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• pp.55-62
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• 2000

첨가제로 맥주효모와 세포외벽을 화학처리 (protoplasted)한 것과 하지 않은 K. fragilism, C. utilis 및 빵효모를 각각 3%씩 배합사료에 첨가하여 평균체중 210mg 전후의 참전복 치패를 10주간 사육 실험한 결과, 생존율은 사료의 효모 종류 및 외벽처리에 따른 유의한 차이는 없었으며, 상품 사료와도 차이가 없었다(P>0.05). 평균증중량 및 가식부 중량은 protoplasted K. fragilis 첨가구가 대조구, 빵효모 및 맥주효모 처리구보다 유의하게 높은 값을 보였으며 (P<0.05), rm 외 실험구들은 실험구간에 차이가 없었다 (P>0.05). 최종 평균 각장은 protoplasted K. fragilis 첨가구가 대조구, 빵효모 및 상품사료보다 유의하게 높은 값을 나타내었으며 (P<0.05), 그 외 실험구들은 차이를 보이지 않았다. 가식부의 수분, 단백질, 지질 및 회분 함량은 실험구간에 유의차는 없었다. (P<0.05).