过去,广东、广西在马氏珠母贝的人工育苗生产中,供给的活饵料只有亚心形扁藻(Platymonas Subcordiformis)一种。亚心形扁藻虽然也是一种良好的饵料,但它的个体较大,运动迅速,在早期阶段的幼体难以摄食。尤其是体质较弱的幼体,往往因不能获得足够的饵料,营养缺乏而逐渐被淘汰,这就是“壳初关”死亡大的主要原因之一。饵料的种类单纯,不能满足不同种类的幼体以及同种类不同发育阶段幼体的需要,是我国南方贝类育 In the past, only one species of Platymonas subcordiformis was supplied with live bait in Guangdong and Guangxi in artificial seedling production of Pinctada martensii. Although it is also a good bait, Aspergillus Platymonas is relatively large and rapidly moving, making it difficult for young larvae to feed at an early stage. In particular, weaker constitutional larvae are often phased out because they can not obtain sufficient feed and lack of nutrition, which is one of the major causes of the death of “Chu Guan Kuan”. Food species simply, can not meet the needs of different types of larvae and larvae of different developmental stages of the same species, is our country southern shellfish breeding