光合细菌配合面包酵母与藻粉培养轮虫的实验

The Experiments on Culture Brachionus plicatilis with PSB Added to Yeast and Algae Powder

以面包酵母与一定量螺旋藻粉培养褶皱臂尾轮虫的过程中,添加光合细菌液进行实验。结果表明:光合细菌作为辅助性饵料,对轮虫的生长具有明显特殊的促进作用。4组实验显示:投喂适宜量光合细菌轮虫增殖明显加快,但与光合细菌添加量的增加不完全呈正比关系;投喂光合细菌新鲜培养液与老培养液轮虫增殖效果相近;投喂光合细菌只能作为辅助性饵料。当配合酵母、藻粉培育轮虫时,3者在饵料上起到了良好的互补作用,培养效果最佳。

In the process of culture rotifer Brachionus plicatilis with Baker's yeast and a certain amount of spiraling algae powder,we add Photosynth-etic Bacteria (PSB) in our experiments.The result show that as a kind of subsidiary diet, PSB has an extraordinary and obviously effect to accelerate population of the rotifer .The four groups of experiments show respectively: (1)The rotifer fed with appropriate dosage of PSB, proliferate faster.(2)The effect with fresh PSB is almost same as that with PSB cultured for a long time. (3)As increase of dosage of PSB, the acceleration of rotifer population growth could be observed, but not show completely direct ratio. In the culture process of rotifer, we can take this proportion to add PSB(50 x 108cell/ ml)that is dry yeast (g):algae powder(g):PSB(ml)=1:0.2:0.5-1:0.2:1. (4)PSB is best as subsidiary feed, but when it's added to yeast and algae powder, three diets can complement mutually on the diet nutrition for rotifer.