Journal of Aquaculture (한국양식학회지)

The Korean Society of Fisheries and Aquatic Science (한국양식학회)
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Effects of Wheat gluten and Steaming Treatment on Water Stability of Extruded Shrimp Feed

소맥글루텐과 스팀 처리가 새우 사료의 수중 안정성에 미치는 효과

  • 김재식 (경북대학교 농업생명과학대학 발효생물공학과)
  • Published : 2004.11.01
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Abstract

This study was carried out to improve water thestability of extruded shrimp feed. Three types of extruded shrimp feeds which were control diet (no steaming, no wheat gluten), steaming treated diet and steaming treated diet containing wheat gluten were prepared to using the pilot scale extruder. Comparing with the water stability values of two types of extruded shrimp feed, Steamed shrimp feed containing 4% (w/w) wheat gluten showed on I after 48 h was better than the control diet (no steaming, no wheat gluten) of which water stability value was 4. Also Penaeus chinensis fed on the steamed feed showed good body weight gain (237%) and feed efficiency (16.7%) compared with body weight gain (151%) and feed efficiency (12.8%) of control diet in the feeding trial for 50 days. Briefly, the extruded shrimp feed has more efficient water stability on below I, and recommendable wheat gluten content and steaming time were 4∼8% (w/w) and 5∼10 minutes.

본 연구는 새우사료의 수중 안정성을 증대시키기 위하여 실시되었다. 스팀처리도 하지 않고 글루텐도 함유하지 않은 비교시험 사료와 스팀 처리만 한 사료 그리고 소맥글루텐을 첨가하고 압출 성형한 후 스팀 처리한 사료, 세 가지 종류의 새우 사료를 제조하였다. 소맥글루텐을 새우사료에 4% (w/w) 가량 첨가하고 압출 성형한 다음 5분간 스팀 처리를 한 사료는 48시간이 지난 수중 안정성이 1로서, 소맥글루텐을 첨가하지 않고 스팀 처리도 하지 않은 비교 시험 사료의 4에 비해 수중 안정성이 크게 증가하였다. 또한 대하 사육 시험에서도 체중 증가율과 사료 효율이 각각 237%, 16.7%로서 비교 시험 사료의 151%, 12.8%보다 그 수치가 크게 증가하였다. 소맥글루텐의 첨가량과 스팀 처리 시간을 변화시켜 본 결과 소맥글루텐 첨가량을 4∼8%(w/w), 스팀 처리시간은 5∼10분으로 하는 것이 새우사료의 수중 안정성 개선에 적당한 것으로 나타났다.

Keywords

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