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以10种饵料投喂方格星虫幼体进行定性和定量试验,实验用的方格星虫幼体是通过人工催产孵化获得。试验结果表明:9种海产单细胞藻类和面包酵母都是方格星虫幼体的良好饵料,其中以扁藻、等鞭金藻、叉鞭金藻、绿色巴夫藻、牟氏角毛藻和三角褐指藻投喂效果最好,星虫幼体日平均生长率达46～52μm,存活率达80%以上。饵料密度对星虫幼体生长及存活的影响明显。饵料密度过低,星虫幼体生长率和存活率都较低;饵料密度过高时,虽然星虫生长率有所提高,但存活率明显下降。扁藻投喂密度以4000～6000cell ml、金藻、角毛藻密度以15000～20000cell ml为宜。初期幼体投喂金藻和角毛藻时,其生长率大于投喂扁藻的生长率;后期幼体投喂扁藻时,幼体生长率反而大于投喂金藻和角毛藻的生长率。因此,初期幼体宜投喂细胞较小的金藻和角毛藻,后期投喂扁藻。
Ten kinds of foodstuffs were fed with T. gondii larvae for qualitative and quantitative tests. The experimental T. gondii larvae were obtained by artificial hatching. The results showed that all the nine species of marine mono-cell algae and baker’s yeast were good bait for T. gingynsis larvae. Among them, Platymonas sp., Isochrysis galbana, Saccharomyces albus, P. aeruginosa, Triangle Phaeodactylum fed the best, the average daily average growth rate of larvae of Astragalus reached 46 ~ 52μm, the survival rate of more than 80%. The effect of feed density on the growth and survival of Neospora was significant. Feed density is too low, the growth rate and survival rate of Nematode larvae are low; feed density is too high, although the growth rate of the stellate worm has increased, but the survival rate decreased significantly. Platymonas feeding density to 4000 ~ 6000cell ml, golden algae, Chaetoceros density to 15000 ~ 20000cell ml appropriate. The initial larvae feeding Chrysophyllum alginate and Chaetoceros growth rate is greater than the growth rate of feeding algae; late larvae feeding Platymonas albino, larvae growth rate but greater than the feeding Chrysophyllum and Chaetoceros growth rate. Therefore, the early larvae should be fed the smaller cells of Chrysophyllum algae and Chaetoceros, late fed algae.