Alternative protein sources for fish meal in diets of young yellowtail

S. Shimeno, T. Masumoto, T. Hujita, T. Mima, S. Ueno
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引用次数: 89

Abstract

Meat meal, meat-and-bone meal, corn gluten meal, and rapeseed meal were evaluated individually as partial replacement for fish meal in single moist pellet diets for young yellowtail Seriola quinqueradiata. Brown fish meal in the diet was replaced isonitrogenously and isocaloricaly with 10, 20, and 30% of each source. Better growth and feed efficiency were found in fish fed on diets with replacement of 10% of all the protein sources used, and the performance further increased as the replacement with meat meal was increased up to 30%. On the other hand, the performance tended to decrease as the replacement of other sources were increased to levels of more than 10%, and the worst performance together with diminished blood and serum characteristics were found in fish fed on the diet with 30% rapeseed meal. These results show that fish meal can be replaced with several cheaper proteins such as meat meal and corn gluten meal within limited amounts, and that the adequate addition of these protein sources to fish meal-based diets improves not only the dietary cost but also their performance.
幼黄尾鱼饲料中鱼粉蛋白质的替代来源
分别评价了肉粉、肉骨粉、玉米蛋白粉和油菜籽粉在单湿颗粒饲料中部分替代鱼粉的效果。用10%、20%和30%的褐鱼粉等氮、等热量替代饲料中的褐鱼粉。在替代10%蛋白质源的饲粮中,鱼的生长和饲料效率较好,当替代30%的肉粉时,性能进一步提高。另一方面,当其他来源替代量增加到10%以上时,生产性能呈下降趋势,在添加30%油菜籽粕的饲料中,生产性能最差,血液和血清特性下降。上述结果表明,在一定数量的范围内,可以用几种更便宜的蛋白质如肉粉和玉米蛋白粉代替鱼粉,在鱼粉为基础的饲料中适当添加这些蛋白质来源不仅可以提高饲料成本,而且可以提高饲料的生产性能。
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