珍珠魟人工繁殖及生长特性的初步研究 |
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引用本文: | 刘超,刘奕,赖明信,邱宝军,罗建仁,胡隐昌.珍珠魟人工繁殖及生长特性的初步研究[J].广东农业科学,2014,41(9):135-138. |
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作者姓名: | 刘超 刘奕 赖明信 邱宝军 罗建仁 胡隐昌 |
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作者单位: | 中国水产科学研究院珠江水产研究所/农业部热带亚热带水产资源利用
与养殖重点实验室,广东广州510380 |
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基金项目: | 国家科技基础条件平台和广东省科技计划
(2011B060400023) |
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摘 要: | 以60 尾珍珠魟(Potamotrygon motoro)为研究对象,进行人工繁育和生长试验。在2011要2013 年间成功
繁育珍珠魟500 尾,成活率达90%。同时对人工养殖条件下珍珠魟生长特性进行研究,结果表明,珍珠魟的体重(W)
与日龄(t)呈线性关系院W= 3.7641t-75.704,R2=0.9623;体盘长(L)与日龄呈线性关系院L=0.0536t+10.952,R2=0.9834;体
重与体盘长呈幂函数关系院W=0.0411L3.094,R2=0.9924,指数b 为3.094,说明人工养殖条件下珍珠魟属于等比生长类
型,体重与体盘长生长基本同步。
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关 键 词: | 珍珠魟 人工繁殖 人工养殖 生长特性 |
Artificial propagation and growth characteristics
of Potamotrygon motoro |
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Abstract: | During 2011 to 2013, 500 Potamotrygon motoro were successfully reproduced and the survival rate was
more than 90%. 60 juveniles were chosen to study the growth characteristics of P. motoro under artificial farming condition.
The result showed that there was a linear relationship between body weight (W) and day age (t), and the regressive equation
was W =3.7641t-75.704, R2=0.9632; there was also a linear relationship between body length (L) and day age, and the
regressive equation was L=0.0536t+10.952, R2=0.9834; there was a power function relationship between body weight and
body length, and the relationship was W =0.0411L3.094, R2=0.9924. The power was close to 3, indicating that the growth of
weight was as fast as that of the body length of P. motoro, and the growth was isometric. |
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Keywords: | Potamotrygon motoro artificial propagation artificial rearing growth characteristics |
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