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50DE微囊营养强化轮虫DHA的研究
STUDIES ON ROTIFERA DHA ENRICHMENT WITH 50DE MICROENCAPSULATED PRODUCT
【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。
【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.
- 【文献出处】 中国水产科学 ,JOURNAL OF FISHERY SCIENCES OF CHINA , 编辑部邮箱 ,1997年S1期
- 【分类号】S986.2
- 【被引频次】17
- 【下载频次】166