Journal of Aquaculture (한국양식학회지)

The Korean Society of Fisheries and Aquatic Science (한국양식학회)
권호 표지

Evaluation of Leather Meal and Meat and Bone Meal as the Fish Meal Replacer in Israeli Carp Diets

잉어사료에 있어서 피혁분과 육골분의 어분대체원으로서의 평가

  • 배승철 (부경대학교 양식학과 사료영양연구실) ;
  • 장혜경 (부경대학교 양식학과 사료영양연구실) ;
  • 김경희 (부경대학교 양식학과 사료영양연구실)
  • Published : 1997.05.01
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Abstract

This study was conducted to evaluate the possible utilization and the replacing range of leather meal (LM) or meat and bone meal (MBM) as a fish meal replacer for the dietary animal protein source of growing israeli carp, Cyprinus carpio. Five different diets were formulated on isonitrigenous and isocaloric basis of 38.5% curde protein and 15.3 KJ/g diet. Percentage of the graded levels of replacement of white fish meal (WFM) by LM/MBM on the basis of crude protein were at follows : diet 1, 100% WFM (control) ; diet 2, 75% WFM+25% LM ; diet 3, 50% LM ; diet 4, 75% WFM+25% MBM ; diet 5, 50 WFM+50% MBM and LM or MBM, and approximately 64.5% of plant protein. After one week of conditioning period, fish averaging 10g were divided into five groups and fed one of the experimental diets for 12 weeks. In the first and the second 4 weeks of feeding trials, there were no significant differences in weight gain between two groups of fish fed diet 1 (control) and 2 (P>0.05), while fish fed diet 3, 4 and 5 had a significantly lower body weight gain than fish fed diet 1 (P<0.05). In contrast to those two periods, all diet groups were not significantly different compared to diet 1 in body weight gain during the third 4 weeks of feeding trial (P<0.05). These results indicated that LM and MBM could be used as a fishmeal replacer up to 50% in growing israeli carp.

본 연구는 잉어 사료의 어분 대체사료원으로서 피혁분과 육골분의 이용 가능성과 어분단백질 대체 범위를 결정하고 잉어용 어분대체품 개발의 기초자료를 제공하고자 실시되었다. 본 실험사료의 단백질원으로 동물성으로는 북양어분(White Fish Meal, WFM), 피혁분(Leather Meal, LM), 육골분(Meat & Bone Meal, MBM)을 식물성으로는 대두박(Soybean Meal, SM), 콘글루텐밀(Corn Gluten Meal, CGM)을 사용하였고, 조단백질 함량은 39.5%, 가용성 에너지는 15.3 KJ/g으로 동일하게 맞추었고, 실험사료내의 어분대체 비율은 다음과 같다 : diet 1 (대조구), 100% white fish meal (WFM, control) : diet 2, 75% WFM+25% leather meal (LM) : diet 3, 50% WFM+50% LM : diet 4, 75% WFM+25% meat and bone meal (MBM) : diet 5, 50% WFM+50% MBM. 일주간의 먹이붙임후에 잉어는 각 실험군별 평균어체중 10 g이 되도록 하여 3반복으로 무작위 배치하였고, 첫 번째와 두 번째 4주간의 사육기간이 끝난 8주후에는 평균어체중이 28 g이 되도록 재배치하여 세 번째 4 주간동안 사육하였다. 사료는 1일 3회 어체중의 2.7-4%로 12주간 공급하였다. 첫 번째와 두 번째 4주후 사료 1(대조구)과 2의 증체율은 유의적 차이가 없었으나(P>0.05), 사료 3, 4, 5는 대조구보다 유의적으로 낮았다(P<0.05). 이와는 달리 세 번째 4주후에 있어서는 대조구와 비교하여 전 사료구에서 유의적인 차이가 없었다(P>0.05). 전어체 일반성분 분석결과, 8주의 수분과 12주의 조지방을 제외하고는 모든 사료구의 일반성분치(수분, 조단백, 조지방, 조회분)에 있어서 유의적 차이가 없었다(P>0.05). 본 실험 결과, 사료내 동물성 단백질원으로 피혁분과 육골분은 충분한 먹이붙임후에 어분단백질의 50%까지 대체 가능함을 보여 주었다.

Keywords

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