| 饥饿对哲罗鱼仔鱼形态、行为和消化器官结构的影响 |
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| 引用本文： | 张永泉,刘奕,徐伟,童广香,尹家胜. 饥饿对哲罗鱼仔鱼形态、行为和消化器官结构的影响[J]. 大连水产学院学报, 2010, 25(4): 330-336 |
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| 作者姓名： | 张永泉 刘奕 徐伟 童广香 尹家胜 |
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| 作者单位： | 1. 中国水产科学研究院,黑龙江水产研究所,黑龙江,哈尔滨,150070
2. 东北农业大学,研究生学院,黑龙江,哈尔滨,150030 |
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| 基金项目： | 国家科技支撑计划项目，国家技术基础条件平台建设项目 |
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| 摘 要： | 研究了饥饿对哲罗鱼Hucho taimen仔鱼形态和行为的影响,采用解剖和石蜡切片方法,对饥饿条件下哲罗鱼仔鱼消化系统组织学进行了研究。结果表明：饥饿后仔鱼出现反应迟钝、游动缓慢和集群性降低等行为,并出现身体发黑、头大身瘦、肝脏体积减小、消化管长度增速减慢和消化管组织学结构与功能明显衰退等特点。食道黏膜层黏液细胞不断萎缩,最后出现破裂;胃腺结构严重破坏,胃肌纤维疏松呈网状。肠黏膜层破损,肠绒毛不整齐,个别地方出现萎缩、断裂,黏液细胞出现破裂。饥饿仔鱼肝组织较为疏松,最后细胞索被破坏,肝细胞间分界模糊,核仁萎缩或解体。分析认为,肝脏为仔鱼较重要的能量贮存器官,胃与肠的褶皱高度可作为哲罗鱼仔鱼营养状况的指示物;哲罗鱼仔鱼0～12 d为可存活摄食时间,0～8 d为最佳摄食时间。
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| 关 键 词： | 哲罗鱼 消化系统 形态学 组织学 营养状况 |
The effects of starvation on morphology,behavior and digestive system in larval Taimen Hucho taimen |
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| ZHANG Yong-quan,LIU Yi,XU Wei,TONG Guang-xiang,YIN Jia-sheng. The effects of starvation on morphology,behavior and digestive system in larval Taimen Hucho taimen[J]. Journal of Dalian Fisheries University, 2010, 25(4): 330-336 |
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| Authors: | ZHANG Yong-quan LIU Yi XU Wei TONG Guang-xiang YIN Jia-sheng |
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| Affiliation: | ZHANG Yong-quan1,LIU Yi2,XU Wei1,TONG Guang-xiang1,YIN Jia-sheng1(1.Heilongjiang River Fisheries Research Institute,Chinese Academy of Fishery Sciences,Harbin 150070,China,2.College of Animal Science , Technology,Northeast Agricultural University,Harbin 150030,China) |
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| Abstract: | Morphological and histological changes and morphology and histology of the digestive system were observed during starvation in Taimen Hucho taimen larvae by anatomy and paraffin section methods.The larvae were found to show unresponsive,slow swimming,and lower gregariousness,and were characterized by black and thin body,big head and shrunken liver after starvation.There was slow development of the digestive tract,and dysfunctional histological structure in the starved larvae which had the shrunken,even bein... |
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| Keywords: | Hucho taimen digestive system morphology histology nutritional status |
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