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以鲜活微藻培养双壳类幼体的传统方法,需要技术,费用又大(约占成本的30—50％),还需专门的仪器设施。开发微囊饲料将是贝类人工育苗的一大进步,且大大节省费用。 已往对悉尼岩牡蛎(Saccostrea commercialis)所做的鲜活微藻试验对成体有效,而对幼体无效[Wisely,1983、1984;Nell,1985]。最近,用微囊饲料部分或全部替代藻类或作添加剂,都做过培养双壳类幼体的试验,而用一种由微囊和溶解酵母提取物对比微藻,大面积培养大砗磲(glant clam)幼体,2.5个月收获数量达4.5倍[Southgate等,1998,专刊]。
The traditional method of growing bivalve larvae with fresh microalgae requires technology that is expensive (about 30-50% of the cost) and requires specialized instrumentation. Development of microencapsulated feed will be a big improvement of shellfish artificial breeding, and significant cost savings. Fresh-lived microalgae tests that have been performed on Saccostrea commercialis have been shown to be effective in adults but not in larvae [Wisely, 1983, 1984; Nell, 1985]. Recently, tests have been conducted to culture bivalveid larvae by partially or completely replacing algae or additives with microcapsules, whereas in contrast to microalgae with microcapsules and dissolved yeast extracts, large area cultures of glant clam) larvae, up to 4.5 times in 2.5 months [Southgate et al., 1998, Special Issue].