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首页> 外文期刊>Journal of Aquaculture in the Tropics >INFLUENCE OF PHYSICAL AND NUTRITIVE PARAMETERS ON POPULATION AND SIZE VARIATION IN TWO SPECIES OF ROTIFER
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INFLUENCE OF PHYSICAL AND NUTRITIVE PARAMETERS ON POPULATION AND SIZE VARIATION IN TWO SPECIES OF ROTIFER

机译：物理和营养参数对两种轮虫种群和大小变化的影响

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摘要

This study was carried out to find out the influence of physical and nutritive factors on determining the population abundance and size variation in two species of rotifer in continuous and batch culture system. The animals were subjected to differentpH (6-10) and salinity (10-60ppt). The pH 8 and salinity 20ppt revealed the maximum growth and followed by 7, 9,6 and 10 pH and the salinity 30,10,40,50 and 60ppt. The algae cultured in Conway and Organic media were fed to the Brachionus rotundiformis and Brachionus plicatilis species of rotifer. The rotifer fed with Chlorella raised in Organic culture medium was found to be the effective feed to enhance the population density than the rotifer grown in Conway medium. Among the two culture systems studied for the present work, the continuous culture system was found to be the best system in increasing the rotifers population densities.
机译：进行这项研究以发现物理和营养因素对连续和分批培养系统中两种轮虫的种群丰度和大小变化的影响。使动物经受不同的pH（6-10）和盐度（10-60ppt）。 pH 8和盐度20ppt显示最大的增长，其次是7、9、6和10 pH和盐度30、10、40、50和60ppt。在康威和有机培养基中培养的藻类被饲喂轮虫的Brachionus rotundiformis和Brachionus plicatilis种。与在康威培养基中生长的轮虫相比，用有机​​培养基中培养的小球藻饲喂轮虫是提高种群密度的有效饲料。在本工作研究的两种培养系统中，连续培养系统被认为是增加轮虫种群密度的最佳系统。

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