ブリ養殖現場で確認した低魚粉飼料へのタウリン添加効果

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タイトル別名
  • Effect of Taurine Supplement to Low Fish Meal Feed on Yellowtail <I>Seriola quinqueradiata</I> in Practical Net Cage
  • ブリ ヨウショク ゲンバ デ カクニン シタ テイギョフン シリョウ エ ノ タウリン テンカ コウカ

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A practical scale feeding experiment was conducted with yellowtail to evaluate taurine supplement to low fish meal feed. Fish meal based EP diet was arranged as a control feed, and 30% and 20% fish meal diets were also formulated to obtain the same protein and calorie content by including soy proteins and corn gluten meal. Taurine was supplemented only to 20% fish meal diet at a level of 0.5%. Yellowtail (1.8 kg) were admitted in practical size net cages (10×10×3.5 m, 3,300 fish) and fed the experimental diets for three and four months. The fish accepted all diets and ate well, even 20% fish meal feed were eaten vigorously. After three month feeding, there was no significant difference in growth performance. On the other hand, the bilirubin content in blood was increased with elevation of substitution rate of fish meal, namely that of the fish fed the 20% fish meal diet was highest. However, green liver syndrome, which was induced in yellowtail by non or low fish meal feed, was not observed in any groups of this experiment. The result of the experiment demonstrated that supplementation with taurine might be very efficient for low fish meal feed in yellowtail.

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  • 水産増殖

    水産増殖 57 (4), 595-600, 2009

    日本水産増殖学会

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