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本文报道,作为鱼类仔鱼重要活体饵料的水生无脊椎动物的生物量,含有50％左右蛋白质,而游离氨基酸连同低分子的缩氨酸占蛋白质含量的50％左右。这就使鱼类仔鱼能够不经过消化道腔室内酶的实质性的处理便消化了活体饵料。此次研究的目的是,测定不同无脊椎动物的生物量内游离氨基酸的含量,以便揭示其作为鱼类仔鱼饵料的价值。研究材料和方法试验所用的是草履虫Paramecium caudatum Ehr.和水蚤亚目甲壳类Moina macrocopaStraus与Daphnia magna Straus生物量。草履虫和甲壳类在流水环境里培育,开
This paper reports that the biomass of aquatic invertebrates, which is an important live bait for fish larvae, contains about 50% of the protein, whereas free amino acids, together with the low-molecular-weight peptides, account for about 50% of the protein content. This allows fish larvae to digest live feed without substantial treatment with enzymes in the digestive tract. The purpose of this study was to determine the content of free amino acids in biomass of different invertebrates in order to reveal their value as bait for fish larvae. Materials and Methods Experiments were conducted using paramecium caudatum Ehr. And Daphnia magna Straus biomass of Moina macrocopaStraus and Daphnia magna. Paramecium and crustaceans in the water environment nurture, open