4种红萍周年喂养草鱼和尼罗罗非鱼的适口性研究

Comparative Study on the Appetency of Two Fish Species Tilapia nilotica and Ctenopharyngodon idellus to Four Azolla Species

4种红萍喂养尼罗罗非鱼和草鱼的结果表明,一年四季的最佳红萍品种为:春季卡洲萍,夏季卡洲萍和羽叶萍,秋季羽叶萍,冬季细绿萍。而且红萍体内的蛋白质含量越高,纤维含量越低,其适口性越好。

A comparative study on the appetency of two fish species, Tilapia nilotica and Ctenopharyngodon idellus, to four azolla species showed a clear preference for Azolla caroliniana in the spring, Azolla caroliniana and Azolla pinnata var.imbricata in the summer, Azolla pinata var. imbricata in the autumn and Azolla filiculoides in the winter. The fish appetency to azolla is supposed to be related to the protein and cellulose contents in azolla species.