Feed Protein Ingredients for Red Sea Bream.
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概要
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Two experiments were conducted to investigate the possible incorporation of suitable combinations of soybean meal (SBM), corn gluten meal (CGM), and meat meal (MM) as substitute protein sources for fish meal in diets for juvenile red sea bream. A commercial diet for red sea bream containing 65% local fish meal was used as a control. Test diets contained combinations of the three protein sources at a total level ranging between 41-46% thereby reducing the fish meal levels to 25-30%, respectively. Another test diet contained 50% of soy protein concentrate (SPC) along with fish meal at a level of 10% in order to examine the availability of SPC as a protein source. The fish weighing approximately 36g (Exp. I) and 27g (Exp. II) on an average were fed the experimental diets for 122 days and 57 days, respectively. The fish fed the diets containing the combination of SBM, CGM, and MM showed the same performance as fish fed the control diet in Exp.I. However in Exp. II, fish of the combination test diet groups showed slightly inferior performance than that of the control. The same tendency was observed for fish fed the SPC diet. There were no significant differences in performance parameters among the test groups. Besides, both the control and test fish were generally evaluated to be in good physiological condition, on the basis of the hemochemical examination. Thus the combination of SBM, CGM, and MM in some proportions was confirmed to be an adequate alternative protein source for juvenile red sea bream.
- 日本水産増殖学会の論文
日本水産増殖学会 | 論文
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