배합사료내 오징어분, 먹이유인물질, 한약제 및 lecithin의 첨가가 참전복의 성장 및 체성분에 미치는 영향

Effects of Supplemental Squid Meal, Attractant, Herb or Lecithin in the Formulated Diets on Growth Performance in Juvenile Abalone (Haliotis discus hannai)

  • LEE Sang-Min (Faculty of Marine Bioscience & Technology, Kangnung National University) ;
  • LIM Yong-Su (National Fisheries Research and Development Institute) ;
  • LEE Jong Kwan (National Fisheries Research and Development Institute) ;
  • PARK Sung-Real (National Fisheries Research and Development Institute) ;
  • MYEONG Jeong-In (National Fisheries Research and Development Institute) ;
  • PARK Yun Jeong (National Fisheries Research and Development Institute)
  • 발행 : 1999.05.01

초록

참전복의 성장을 증진시키거나 품질을 개선시킬 수 있는 첨가제를 탐색하기 위해, 오징어분 $5\%$, 먹이유인물질 $0.5\%$, 한약제$1\%$ 및 lecithin $0.5\%$를 각각 첨가한 배합사료를 설계하여 외국에서 수입된 상품사료와 비교하였다. 평균체중 150mg의 참전복 치패를 대상으로 각 사료당 4반복으로 18주간 사육 실험한 결과, 최종 평균체중은 한약제를 첨가한 실험구가 720mg으로 가장 높았고, lecithin를 첨가한 실험구가 610mg으로 가장 낮았으며 (P<0.1), 상품사료는 660 mg이었다. 생존율과 가식부의 일반성분은 사료구간에 유의적인 차이가 인정되지 않았다 (P>0.1). 증체율은 한약제 첨가 사료가 $405\%$로 가장 높아 오징어분 첨가구, lecithin 첨가구 및 상품사료의 $320\~329\%$ 보다 높았다 (P<0.1). 이와 같이 한약제 첨가구가 오징어 분말, lecithin 및 상품사료보다 성장이 개선되는 경향이 있어, 한약제의 첨가가 성장개선에 도움이 될 것으로 보이며, 금후 이에 대한 연구가 계속 수행되어야 할 것이다.

An 18-week growth trial was conducted in flow-through aquarium system to investigate the effects of several additives in formulated diets on the growth and body composition of juvenile abalone (Haliotis discus hannai). Four replicate groups of abalone averaging 150 mg were fed one of four isonitrogenous ($33.8\%$) and isolipidic ($5.8\%$) diets containing $5\%$ squid meal, $0.5\%$ attractant, $1\%$ herb or $0.5\%$ lecithin. In addition, these formulated diets were compared to commercial diet. Survival rate and shell growth of abalone were not significantly affected by the different dietary additives and commercial diet (P>0.1). Body weight gain of abalone fed the diet containing herb was higher than those of abalone fed the diets containing squid meal or lecithin and commercial diet (P<0.1). Moisture, protein, lipid and ash contents of soft body were not influenced by dietary additives and commercial diet (P>0.1). The results suggest that herb as additive in this formulated diet can improve weight gain of abalone.

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