Effect of EM-fermented Orange in Commercial Diet on Growth of Juvenile Flounder, Paralichthys olivaceus

상품 사료에 첨가한 감귤발효액이 치어기 넙치, Paralichthys olivaceus의 성장에 미치는 영향

  • 송영보 (제주대학교 해양과환경연구소) ;
  • 문상욱 (제주대학교 해양과환경연구소) ;
  • 김세재 (제주대학교 해양과환경연구소) ;
  • 이영돈 (제주대학교 해양과환경연구소)
  • Published : 2002.06.01

Abstract

Diets containing 0.02 to 10.0% EM-fermented orange (EFO) were fed to Paralichthys olivaceus(8.5 g), which were reared in flow-through system for 16 weeks. Groups fed on diets containing 0.1 and 0.2% EFO grew significantly faster; their feed coefficient and daily feeding rate were also higher. The number of goblet cells present in the mid-intestine of the fish receiving dietary EFO was significantly more. Total cholesterol level in plasma of the fish fed with 0.02% EFO was lower. However, there was no significant difference in GOT and GPT among the groups receiving different levels of EFO.

제주산 온주 밀감을 EM (Effective Microorganism)에 의해 발효시킨 감귤발효액을 넙치 사료에 첨가하여 공급하였을 때 넙치의 성장 및 소화기관 활성 그리고 혈액조성에 미치는 영향을 분석하고, 감귤발효액이 넙치 사료의 사료첨가제로 이용가능성을 검토하였다. 감귤발효액을 사료량의 10.00%, 0.20%, 0.10% 그리고0.02% 첨가한 처리구와, 감귤발효액을 첨가하지 않고 사료만을 공급한 대조구로 하였다 성장실험에 있어서 전장은 감귤발효액 0.20%처리구에서 대조구보다 높았다(P<0.05). 체중 감귤발효액 0.20%와 0.10% 처리구에서 대조구보다 양호한 성장을 하였다(P<0.05). 총 증중량은 감귤발효액 0.20%와 0.10% 처리구에서 대조구보다 26.24∼29.35% 증중 효과가 있었다. 사료계수 그리고 일간먹이섭취율에서 감귤발효액 0.20% 와 0.10% 처리구가 대조구보다 향상된 결과를 나타내었다(P<0.05). 전장(anterior intestine)과 중장(mid intestine)의 점막 주름에 존재하는 배상세포(goblet cell)의 수는 처리구가 대조구보다 많았고, 전장 보다 중장으로 갈수록 많았다 (P<0.05). 혈장내 total cholesterol의 값은 감귤발효액 0.02%처리구에서 대조구보다 낮았다(P<0.05). 감귤발효액을 넙치사료에 첨가하였을 때, 넙치의 사료효율 증가와 장 활성으로 넙치의 성장과 생리활성에 보조하는 사료첨가제로서 이용가치가 높은 것으로 생각된다.

Keywords

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