【摘要】 将仿刺参Apostichopus japonicus分别在实验室15、20、25℃水温下进行培养,其消化道和呼吸树发生了退化现象,根据外部形态和组织结构变化特点,将夏眠退化过程分为早、中、晚3个阶段。夏眠退化早期,仿刺参可摄食,消化道开始缩小变细,组织结构出现退化现象;夏眠退化中期,仿刺参仍可少量摄食,消化道萎缩现象明显,组织结构退化较严重;夏眠退化晚期,仿刺参不再摄食,消化道萎缩成细线状,组织结构退化严重。呼吸树退化程度较消化道轻,表现为体积变小,但组织结构退化不明显。更多还原

【Abstract】 Degeneration of alimentary tract and respiratory tree occurred in sea cucumber(Apostichopus japonicus)under the cultural temperature of 20 ℃,and 25 ℃.The whole process of aestivation was divided into 3 stages: early stage,middle stage and later stage basis on the characteristics of shapes and the histological changes.In the first stage,the sea cucumber still fed,but had gradual thin alimentary tract,and its structure was in degeneration.In middle stage,the feeding activity of the sea cucumber became weak,and the alimentary tract was in atrophied obviously.More significant degeneration was observed in the structure of the alimentary tract.In the later stage,stopping feeding occurred in the sea cucumber whose alimentary tract was threadlike in shape and the tissue degenerated significantly.There was weaker degeneration in respiratory trees only shrinking in size than that in the alimentary tract.更多还原