- 치어기 잉어에 있어 사료내 Lysine 부산물의 첨가효과
- ㆍ 저자명
- 김강웅,왕소길,배승철,Kim. Kang Woong,Wang. Xiaojie,Bai. Sung chul C.
- ㆍ 간행물명
- 한국수산학회지
- ㆍ 권/호정보
- 2002년|35권 4호|pp.336-341 (6 pages)
- ㆍ 발행정보
- 한국수산과학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
본 연구는 치어기 잉어에 있어서 어분 (fish meal, FM) 대체 단백질원으로서 lysine 부산물 (lysine cell mass, LCM)이 사료내 이용 가능성과 대체 수준을 결정하기 위해 수행하였다. 실험사료의 조단백질 함량은 $38\%$, 가용에너지는 15.2kJ/g (protein, carbohydrate and lipid: 16.7, 16.7 and 37.7kJ/g)으로 동일하게 맞추어 실험사료를 제조하였으며, 사료의 조성을 요약하면 다음과 같다: $100\%$ $FM; LCM_20$, $80\%$ $FM+20\%$ $LCM; LCM_40$, $60\%$ $FM+40\%$ $LCM; LCM_60$, $40\%$ $FM+60\%$ $LCM; LCM_100$, $100\%$ $LCM; LCM_20$l, $80\%$ $FM+20\%$ $LCM+0.07\%$ $Lysine; LCM_40$l, $60\%$ $FM+40\%$ $LCM+0.14\%$ $Lysine; LCM_60$l $40\%$ $FM+60\%$ $LCM+0.22\%$ $Lysine; LCM_100$l, $100\%$ $LCM+0.35\% Lysine. 6주 동안의 실험 결과, 증체율, 사료효율, 일간성장률, 간중량지수 및 단백질전환효율에 있어서 LCM_0와 비교하석 LCM_20는 유의적인 차이가 없는 반면에 (P>0.05), $LCM_40,;LCM_60$ 및 $LCM_100,;LCM_40l,;LCM_60$l 및 $LCM_100$l는 유의적으로 낮게 나타났다 (P<0.05). $LCM_0$와 $LCM_20$l은 증체율, 일간성장률, 간중량지수 및 단백질 전환효율에 있어서는 유의적인 차이를 보이지 않는 반면에 (P>0.05), 사료효율에 있어서는 $LCM_0$에 비해 $LCM_20$l이 유의적으로 낮게 나타났다 (P<0.05). 헤마토그리트과 비만도는 모든 사료구에서 유의적인 차이가 없었다 (P<0.05). 따라서, 치어기 잉어에 있어서 Iysine 부산물은 어분단백질의 $100\%$ $FM; LCM_20$, $80\%$ $FM+20\%$ $LCM; LCM_40$, $60\%$ $FM+40\%$ $LCM; LCM_60$, $40\%$ $FM+60\%$ $LCM; LCM_100$, $100\%$ $LCM; LCM_20$l, $80\%$ $FM+20\%$ $LCM+0.07\%$ $Lysine; LCM_40$l, $60\%$ $FM+40\%$ $LCM+0.14\%$ $Lysine; LCM_60$l $40\%$ $FM+60\%$ $LCM+0.22\%$ $Lysine; LCM_100$l, $100\%$ $LCM+20\%까지 대체 가능하며, lysine 부산물에 결핍된 필수아미노산인 lysine을 첨가한 사료구에서는 첨가 효과가 나타나지 않았다.
This experiment was conducted to evaluate the lysine cell mass (LCM) as a dietary fish meal (EM) protein replacer in juvenile Israeli carp, Cyprinus carpio. Fishmeal, a major animal protein source in the control diet, was replaced by tCM on the protein equivalent base, Fish averaging 1,7 $pm$ 0.1 g (Mean $pm$ SD) fed one of nine diets containing isonitrogenous and isocaloric basis of $38\%$ crude protein and 15.2 kJ available energy/g diet: control, $100\%$ $FM; LCM_20$, $80\%$ $FM+20\%$ $LCM; LCM_40$, $60\%$ $FM+40\%$ $LCM; LCM_60$, $40\%$ $FM+60\%$ $LCM; LCM_100$, $100\%$ $LCM; LCM_20$l, $80\%$ $FM+20\%$ $LCM+0.07\%$ $Lysine; LCM_40$l, $60\%$ $FM+40\%$ $LCM+0.14\%$ $Lysine; LCM_60$l $40\%$ $FM+60\%$ $LCM+0.22\%$ Lysine; LCM_100l, $100\%$ LCM+$0.35\% Lysine. After 6 weeks of feeding trial there was no significant difference in weight gain (WG), feed efficiency (FE), protein efficiency ratio (PER) and specific growth rate (SGR) among fish fed control and $LCM_20$ (P>0.05), while fish fed $LCM_40,;LCM_60,;LCM_100,;LCM_40l,;LCM_60l;and;LCM_100l$ diets had a significantly lower WG, FE, PER and SGR than did fish fed control diet (P<0.05). There was no significant difference in WG, PER and SGR among fish fed control and $LCM_20$l diets (P>0.05), while fish fed $LCM_20$l S had a significantly lower FE than did fish fed control diet (P<0.05). No significant difference was observed in hematocrit and condition facto, among fish fed nine diets (P>0.05). Therefore, these results indicated that LCM could replace FM up to $20\%$ and dietary synthetic lysine supplementation did not show any positive growth effects in juvenile Israeli carp.