ROTIFERS AS FOOD IN AQUACULTURE
ROTIFERS AS FOOD IN AQUACULTURE
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DOI：
10.1007/bf00048937
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发表时间：
1989-12-08
期刊：
影响因子：
2.6
通讯作者：
MINKOFF, G
中科院分区：
文献类型：
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作者：
LUBZENS, E;TANDLER, A;MINKOFF, G
褶皱臂尾轮虫(O.F. Muller)可大量大规模养殖，是水产养殖中重要的活饲料。这种轮虫通常在外源喂养的前 7-30 天提供给幼虫。猎物密度的变化会影响幼鱼的摄食率、日粮、活动、疏散时间、生长速度和生长效率。B.可以以满足幼虫代谢需求并产生高存活率所需的食物浓度供应皱襞。活食可以增强幼虫捕食者的消化过程。大范围的遗传差异 B.具有多种体型尺寸的褶皱菌株允许饲养许多鱼类的幼体。幼虫首先以小品系的轮虫为食，随着幼虫体型的增大，引入更大品系的轮虫。轮虫被视为将营养物质转移给鱼类幼虫的活食物胶囊。这些营养物质包括海鱼幼体生存所必需的高度不饱和脂肪酸（主要是20:5n−3和22:6n−3）。此外，用抗生素处理的轮虫可能会提高存活率。人们已经研究了在低温下或通过其休眠卵保存活轮虫的可能性。
The rotiferBrachionus plicatilis(O.F. Muller) can be mass cultivated in large quantities and is an important live feed in aquaculture. This rotifer is commonly offered to larvae during the first 7–30 days of exogenous feeding. Variation in prey density affects larval fish feeding rates, rations, activity, evacuation time, growth rates and growth efficiencies.B. plicatiliscan be supplied at the food concentrations required for meeting larval metabolic demands and yielding high survival rates. Live food may enhance the digestive processes of larval predators. A large range of genetically distinctB. plicatilisstrains with a wide range of body size permit larval rearing of many fish species. Larvae are first fed on a small strain of rotifers, and as larvae increase in size, a larger strain of rotifers is introduced. Rotifers are regarded as living food capsules for transferring nutrients to fish larvae. These nutrients include highly unsaturated fatty acids (mainly 20: 5 n−3 and 22: 6 n−3) essential for survival of marine fish larvae. In addition, rotifers treated with antibiotics may promote higher survival rates. The possibility of preserving live rotifers at low temperatures or through their resting eggs has been investigated.