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十二、罗非鱼的营养需求 不同品种的罗非鱼,在不同的生长阶段,对营养的需求有一定差别。如尼罗罗非鱼稚鱼(0.3～0.8克),饲料中最适蛋白质含量要求为35％～40％,50克以上为20％～25％;奥利亚罗非鱼稚鱼(0.3～0.5克),饲料中最适蛋白质含量大于36％,21克体重时,要求饲料中最适蛋白质含量为26％～36％。在营养需求上,虽存在一定的差异,但大体上一致。联合国粮农组织,1987年推荐了罗非鱼主要营养指标(见下表)。
Second, the nutritional needs of tilapia Different varieties of tilapia, in different stages of growth, the nutritional needs of a certain difference. Such as the nile tilapia (0.3-0.8 g), the optimum dietary protein content is 35% -40%, 50% or more is 20% -25% 0.5 g), the optimum dietary protein content of more than 36%, 21 g body weight, the feed requirements of the optimum protein content of 26% to 36%. There are some differences in nutritional requirements, but they are generally the same. The UN Food and Agriculture Organization recommended the main tilapia nutrition indicators in 1987 (see table below).