Culture technology of marine rotifers and the implications for intensive culture of marine fish in Japan
Culture technology of marine rotifers and the implications for intensive culture of marine fish in Japan
复制标题
海洋轮虫养殖技术及其对日本海水鱼类集约化养殖的启示
DOI：
10.1071/mf9960217
复制
发表时间：
1996
影响因子：
1.8
通讯作者：
C. Kitajima
中科院分区：
文献类型：
--
作者：
K. Yoshimura;A. Hagiwara;T. Yoshimatsu;C. Kitajima
为了扩大海洋鱼类幼鱼的养殖实践，必须增加和稳定活饲料的生产。日本轮虫养殖技术的最新研究正是针对这些目标而进行的。本文综述了轮虫高密度群体培养技术的研究进展。海洋轮虫圆形臂尾轮虫（所谓的S型）的高密度培养使得生产效率比常规方法高至少100倍，生产成本更低。该技术的基础是利用高浓度的藻类生物质作为轮虫的食物。轮虫的大量培养在10000-30000个人mL-1的饲养他们只浓缩淡水小球藻。通常向培养物提供恒定的O2;通过加入HCl将pH调节至7，以避免培养系统中游离氨的增加。多余的悬浮有机物可以通过尼龙过滤垫有效地去除。
In order to expand the practice of rearing marine finfish larvae, it is necessary to increase and stabilize the production of live feed. Latest researches on rotifer culture technology in Japan have aimed at these objectives. This paper summarizes the progress on the technology of high-density rotifer mass cultures. The high-density culture of the marine rotifer Brachionus rotundiformis (so-called S-type) enables production that is at least 100 times more efficient than that by the conventional method, with less cost for production. The technology is based on the use of highly concentrated algal biomass as food for rotifers. Rotifers are mass-cultured at 10000-30000 individuals mL-1 by feeding them exclusively on condensed freshwater Chlorella. Cultures are generally supplied with constant O2; pH is adjusted to 7 by addition of HCI to avoid an increase of free ammonia in the culture system. The excess suspended organic matter can be efficiently removed by a nylon filtration mat.