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刘元文,房慧,张宇哲,菅玉霞,王雪,李莉,高凤祥,潘雷,郭文,胡发文.斑点鳟的外形特征与消化系统结构[J].广西科学院学报,2018,34(3):198-203. [点击复制]
- LIU Yuanwen,FANG Hui,ZHANG Yuzhe,JIAN Yuxia,WANG Xue,LI Li,GAO Fengxiang,PAN Lei,GUO Wen,HU Fawen.Morphological Characteristics and Structure of Digestive System of Oncorhynchus mykiss[J].Journal of Guangxi Academy of Sciences,2018,34(3):198-203. [点击复制]
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| 斑点鳟的外形特征与消化系统结构 |
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刘元文1,2, 房慧1,2, 张宇哲3, 菅玉霞1,2, 王雪1,2, 李莉1,2, 高凤祥1,2, 潘雷1,2, 郭文1,2, 胡发文1,2
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| (1.山东省海洋生物研究院, 山东青岛 266104;2.山东省海水养殖病害防治重点实验室, 山东青岛 266104;3.鲁东大学, 山东烟台 264025) |
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| 摘要: |
| [目的]研究斑点鳟Oncorhynchus mykiss外部形态特征与内部消化系统结构。[方法]观察并描述斑点鳟外部形态特征,测量30尾斑点鳟的外部形态参数,对其进行相关性分析;解剖观察斑点鳟的消化系统结构特征。[结果]斑点鳟外部形态参数全长(LT)与体长(LB)的相关关系为LT=1.21 LB-3.25(R2=0.948),体质量(W)与全长(LT)的关系为W=0.001 LT3.562(R2=0.754),其余几项形态参数之间相关性较低;可数性状背鳍、臀鳍、腹鳍、胸鳍、尾鳍的鳍条数分别为6~12、9~15、10~24、20~28、23~33;具有1条侧线;第1鳃弓鳃耙数为15~18。斑点鳟为典型的肉食性鱼类,其消化系统结构特征为口咽腔较小,颌齿发达;食道短粗;胃发达,呈V形,分化明显;肠在腹腔内呈两个盘曲,肠长/体长为0.503±0.09;幽门盲囊数为48~72个。[结论]该实验结果可为斑点鳟的消化生理研究以及养殖管理提供科学的理论依据。 |
| 关键词: 斑点鳟 形态特征 消化系统 |
| DOI：10.13657/j.cnki.gxkxyxb.20180806.001 |
| 投稿时间：2018-05-09 |
| 基金项目:山东省农业重大应用技术创新课题和青岛市关键技术攻关计划项目(12-4-1-56-hy)资助。 |
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| Morphological Characteristics and Structure of Digestive System of Oncorhynchus mykiss |
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LIU Yuanwen1,2, FANG Hui1,2, ZHANG Yuzhe3, JIAN Yuxia1,2, WANG Xue1,2, LI Li1,2, GAO Fengxiang1,2, PAN Lei1,2, GUO Wen1,2, HU Fawen1,2
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| (1.Marine Biology Institute of Shandong Province, Qingdao, Shandong, 266104, China;2.Shandong Provincial Key Laboratory for Disease Control in Mariculture, Qingdao, Shandong, 266104, China;3.Ludong University, Yantai, Shandong, 264025, China) |
| Abstract: |
| [Objective] To study the external morphological characteristics and the structure of the digestive system of Oncorhynchus mykiss. [Methods] The external morphological characteristics of Oncorhynchus mykiss were observed and described. The external morphological parameters of the 30 Oncorhynchus mykiss were measured and analyzed for correlation. The structural characteristics of their digestive system were observed by anatomic method. [Results] The correlation equation of total length and body length was:LT=1.21 LB-3.25(R2=0.948). The correlation equation of weight and total length was:W=0.001 LT3.562(R2=0.754). The countable characters of the dorsal fin rays, anal fin rays, pelvic fin rays, pectoral fin rays, and caudal fin rays were 6-12, 9-15, 10-24, 20-28, 23-33 respectively. There was one lateral line. The left first gill arch raker was 15 to 18. Oncorhynchus mykiss was a typical carnivorous fish. Its digestive system was characterized by small oropharyngeal cavity, developed jaw teeth, short and thick esophagus, developed stomach, V-shaped, and distinct differentiation. The intestine had two curvatures in the abdominal cavity. The intestine length/body length was 0.503±0.09; the number of pyloric caecum was 48-72. [Conclusion] The experimental results can provide a scientific theory basis for the study of digestive physiology and aquaculture management of Oncorhynchus mykiss. |
| Key words: Oncorhynchus mykiss morphological characteristics digestive system |
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