【摘要】 应用５０ＤＥ微囊ＤＨＡ营养强化饵料强化轮虫试验，结果表明：试验Ａ、Ｂ两区强化６小时后轮虫ＤＨＡ／ＦＡ含量由最初的未检出上升为１．５％、４．０％，１２小时后达到最高峰，分别为７．５％和１０．３％、而对照Ｃ区在２４小时试验区间ＤＨＡ均未检出。试验Ａ、Ｂ两区轮虫怀卵率也明显高于对照Ｃ区，其中Ｂ区在营养强化２４小时后轮虫怀卵率高达７７％，Ａ区为５１．９％，而Ｃ区仅为２６．７％，尚有不正常个体。还进行了轮虫种源驯化培养试验，并对５０ＤＥ微囊强化的轮虫喂养牙鲆仔鱼的安全性进行了探讨。更多还原

【Abstract】 The results of the test on the enrichment of rotifera (Brechionus plicatilis) DHA with 50DE microencapsulated DHA nutritional product are reported in this paper. The test was carried out in three groups, A,B and C, and group C was the contrast. The results indicated that at the beginning of the test, DHA/FA content of rotifera in group A and B was undetected, after 6 hours’ enrichment, it added up to 1.5% and 4.0% respectively, and after 12 hours it reached the maximum which was 7.5% and 10.3% respectively, however, DHA in group C could not be detected during the 24-hour-test. The ovum-holding rate of rotifera in group A and B was obviously higher than that in group C, after 24 hours, the ovum-holding rate of rotifera in group B was 77% and that in group A was 51.9%, while in group C it was only 26.7% and there were still abnormal individuals. Tests on acclimatizing the original strain were conducted to make the rotifera adapt to the change of environment and diet. There is also a discussion on the security of feeding (P.olivaceus) larva with rotifera which was enriched with 50DE microencapsulated product in this paper.更多还原