| 黄鳝性转变与体重、年龄的关系 |
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| 引用本文： | 杨代勤,陈芳,阮国良,苏应兵.黄鳝性转变与体重、年龄的关系[J].长江大学学报,2008,5(4). |
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| 作者姓名： | 杨代勤 陈芳 阮国良 苏应兵 |
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| 作者单位： | 长江大学动物科学学院,湖北荆州434025 |
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| 基金项目： | 国家“十一五”支撑计划项目(2007BAD37B04); 湖北省“十一五”重大科技攻关项目(2006AA203A02) |
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| 摘 要： | 研究了黄鳝（Monopterus albus Zuiew）性转变与体重、年龄的关系。结果表明，黄鳝性别与体重关系密切，体重在50．0g以下的黄鳝，均为雌性个体；体重在50．1～75．0g的黄鳝，开始出现性转变；体重在100．1～125．0g，雄性比例开始超过雌性的比例；体重在125．1～300．0g之间，随着体重的增加，雄性比例逐步增加，而雌性的比例逐步减少；体重超过300．0g的个体，则全部为雄性个体。1龄、2龄黄鳝均为雌性个体，3龄黄鳝开始出现性转变，4龄黄鳝的雄性比例超过雌性比例；5～8龄的个体，随着年龄的增长，雌性比例逐渐减少，雄性比例逐渐增加；9～11龄的个体，仍然有雌性个体。
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| 关 键 词： | 黄鳝（Monopterus albus Zuiew） 性转变 年龄 体重 |
Relationship between Sex Reversal,Body Weight and Age of Monopterus albus |
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| YANG Dai-qin,CHEN FangRUAN Gu-liang,SU Ying-bing College of Animal Science,Yangtze University,Jingzhou,Hubei ,China.Relationship between Sex Reversal,Body Weight and Age of Monopterus albus[J].Journal of Yangtze University,2008,5(4). |
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| Authors: | YANG Dai-qin CHEN FangRUAN Gu-liang SU Ying-bing College of Animal Science Yangtze University Jingzhou Hubei China |
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| Institution: | YANG Dai-qin,CHEN FangRUAN Gu-liang,SU Ying-bing College of Animal Science,Yangtze University,Jingzhou,Hubei 434025,China |
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| Abstract: | The relationship between sex reversal,body weight and age of Monopterus albus was studied. The results showed that:the individuals with bodyweight of less than 50.0 g were all female,sex reversal of M. albus occured when its body weight was between 50.1~75.0 g,the proportion of male M. albus was more than that of female when its body weight was 100.1~125.0 g. With the increasing of bodyweight of M. albus,when the bodyweight of M. albus was 125.0~300 g,the proportion of male increased and the proportion of f... |
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| Keywords: | Monopterus albus sex reversal age body weight |
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