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首页> 外文期刊>Aquaculture Research >Effect of the use of the microalga Spirulina maxima as fish mealreplacement in diets for tilapia, Oreochromis mossambicus (Peters), fry
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Effect of the use of the microalga Spirulina maxima as fish mealreplacement in diets for tilapia, Oreochromis mossambicus (Peters), fry

机译：使用微藻最大螺旋藻代替罗非鱼，莫桑比克罗非鱼（Peters），鱼苗的饲料中鱼粉的作用

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摘要

The present study addresses the use of the microalga Spirulina maxima as a protein source in diets for tilapia, Oreochromis mossambicus (Peters), fry. Animal protein was replaced with algae protein at ratios of 20%, 40%, 60%, 80% and 100%, and the substitution effect was compared with a control diet in which fish meal was the sole protein, An additional 100% spirulina protein diet was supplemented with phosphorous to test for possible mineral deficiency in the plant-protein-based diet, The six treatments were tested in triplicate in a closed-recirculating system where the fish were fed by hand at 6% of their body weight, After a 9-week feeding period, the growth rate and protein utilization of fish fed the diet with 20% and 40% Spirulina were elevated and not significantly different (P>0.05) from those fed the control diet, Further increases in the alga protein content significantly decreased the growth and feeding performance, The addition of P to the 100% Spirulina diet slightly improved performance in comparison to the same diet without P, None of the treatments produced any clear adverse effects on carcass composition, It is observed that Spirulina can replace up to 40% of the fish meal protein in tilapia diets.
机译：本研究解决了微藻最大螺旋藻作为罗非鱼，莫桑比克罗非鱼（Peters），鱼苗日粮中蛋白质来源的用途。用藻类蛋白以20％，40％，60％，80％和100％的比例代替动物蛋白，并将替代效果与以鱼粉为唯一蛋白，另外的100％螺旋藻蛋白的对照日粮进行比较饮食中添加了磷以测试植物蛋白饮食中可能的矿物质缺乏。在密闭循环系统中对这六种处理进行了三次重复测试，其中鱼以体重的6％人工喂养。在第9周的饲喂期中，饲喂20％和40％螺旋藻日粮的鱼的生长速率和蛋白质利用率均升高，与对照日粮相比无显着差异（P> 0.05），藻蛋白含量进一步增加降低了生长和摄食性能，与不含磷的相同饮食相比，向100％螺旋藻饮食中添加了P的性能略有改善，没有一种处理对car体组成产生明显的不良影响，这是肥胖的螺旋藻可以代替罗非鱼饮食中多达40％的鱼粉蛋白质。

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