Effect of solvent extracted soybean meal and full-fat soya on the protein and amino acid digestibility and body amino acid composition in rainbow trout (Oncorhynchus mykiss)
محل انتشار: مجله علوم شیلات ایران، دوره: 11، شماره: 3
سال انتشار: 1391
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 118
فایل این مقاله در 14 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_JIFRO-11-3_005
تاریخ نمایه سازی: 22 اسفند 1400
چکیده مقاله:
This study was carried out to investigate the apparent digestibility
coefficients (ADCs) value of protein, amino acid and energy and body amino acid
composition of rainbow trout fed
solvent extracted soybean meal (SBM) and full-fat soybean meal (FFS) partly
replacing fish meal (FM) in diets. Five iso nitrogenous (average ۵۰.۳۶% crude
protein) and energetic (۴۲۹۴ kcal/kg total energy) diets were designed in ۵
groups in triplicates. Diet one as control group with ۴۳% FM and ۲۵% SBM, Diet
۲ with ۲۸% FM and ۴۰% SBM, Diet ۳ with ۱۳% FM and ۵۵% SBM, Diet ۴ with ۲۸% FM
and ۴۰% FFS, Diet ۵ with ۱۳% FM and ۵۵% FFS. Diets were fed to trout fishes with
۴۹ g initial
body weight for ۲۰ weeks at ۸.۸±۰.۴۵ ºC. It was found that ADCs of energy,
protein and most amino acids particularly methionine and lysine and fish body
muscle lysine levels, significantly decreased by increasing the amount of FFS
and SBM in diets (P<۰.۰۵). On the other hand, valine, isoleucine, threonine,
methionine, phenylalanine, lysine and histidine showed a decreasing tendency
with the increasing proportion of SBM in fish body composition. It was concluded
that increasing the SBM and FFS percent replacing FM in trout fish diet, caused
reducing protein, amino acid and energy digestibility, compared with the
control diet. However, it can also be concluded that the replacement of SBM was
more efficient than the replacement of FFS as regarding growth, ADCs of protein
and essential amino acid contents of O. mykiss.
کلیدواژه ها:
نویسندگان