【摘要】 本文研究了尼罗罗非鱼仔幼鱼消化器官的形态特征及其对食性变化的形态适应;系统地观察了尼罗罗非鱼各发育阶段的食性。更多还原

【Abstract】 This paper deals with the feeding habit of different developmental stages from fryto juvenile of T. nilotica. The morphological characteristics of the teeth on both theupper and lower jaws and of pharyngeal teeth, gill rakes, gut and digestive glands areobserved systematically. The morpholigical changes of the digesitive organs in regardto the variation of the feeding habit is examined, and also the feeding habit of T.nilotica during each development stage and guts contents have been analysed.更多还原