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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 1996.11
- 수록면
- 395 - 407 (13page)
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A feeding experiment for 160 days was conducted to evaluate effects of dietary soybean meal (SBM) on the apparent digestibility, ammonia excretion and body composition of rainbow trout (Oncorhynchus mykiss). Seven diets containing 0~70% SBM were formulated based on iso-nitrogenous and iso-caloric basis of 44% crude protein and approximately 4,200 Kcal/kg of gross energy.
To evaluate the nutritional utilization of the SBM diets at the end of 60 and 120-day rearing with test diets, digestion rates of protein and lipid of SBM diets were measured. Fish fed the diets containing above 46% SBM showed higher apparent digesti bility for protein, but lower for lipid than did fish fed the control diet in both trials. Protein and fat contents in the carcass were similar for all experimental fish, except for fish fed 58% and 70% SBM which showed lower fat content than the others, but composition of fatty acid and amino acids were not affected by dietary SBM levels.
Gill and urinary post-prandial ammonia (NH₃-N) excretions were measured at 12 and 24 hours after single feeding of the experimental diets. Excretions of NH₃-N measured after 24 hours were almost 2 times higher than those measured after 12 hours. Total excretion for the 24 hours by fish fed 70% SBM was 15% higher than that of fish fed the control diet.
Results of present study may suggest that the rainbow trout which were fed above 34% or 46% of SBM diet showed a decrease gradually in lipid bioavailability compared to the control group.
To evaluate the nutritional utilization of the SBM diets at the end of 60 and 120-day rearing with test diets, digestion rates of protein and lipid of SBM diets were measured. Fish fed the diets containing above 46% SBM showed higher apparent digesti bility for protein, but lower for lipid than did fish fed the control diet in both trials. Protein and fat contents in the carcass were similar for all experimental fish, except for fish fed 58% and 70% SBM which showed lower fat content than the others, but composition of fatty acid and amino acids were not affected by dietary SBM levels.
Gill and urinary post-prandial ammonia (NH₃-N) excretions were measured at 12 and 24 hours after single feeding of the experimental diets. Excretions of NH₃-N measured after 24 hours were almost 2 times higher than those measured after 12 hours. Total excretion for the 24 hours by fish fed 70% SBM was 15% higher than that of fish fed the control diet.
Results of present study may suggest that the rainbow trout which were fed above 34% or 46% of SBM diet showed a decrease gradually in lipid bioavailability compared to the control group.
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이 논문의 저자 정보
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UCI(KEPA) : I410-ECN-0101-2009-529-015344993