温度和体重对蚂蟥人工繁殖影响的研究  

Studies on impact of temperature and weight in Whitmania pigra bred

作　　者：史红专[1] 刘飞[1] 郭巧生[1] 

机构地区：[1]南京农业大学中药材研究所,江苏南京210095

出　　处：《中国中药杂志》2006年第24期2030-2032,共3页China Journal of Chinese Materia Medica

基　　金：国家科技攻关计划项目(2001BA701A62-04)

摘　　要：目的：确定蚂蟥的最佳产卵温度、体重以及孵化的最适温度。方法：在不同温度、体重条件下观察蚂蟥产卵和孵化。结果与结论：蚂蟥产卵和孵化的最适温度是25℃,产卵的最佳体重为20 g左右；温度能影响蚂蟥产卵前后的体重,而体重对其的影响不明显；当卵重在0．1～2．0 g时与孵出量成正比,当卵重大于2．0 g时孵出量反而有所下降。Objective： To determine the best spawning temperature and weight of Whitmania pigra and the hatching temperature of its eggs. Method： Observe the state of W. pigra spawning and hatching were observed under different temperatures and weights conditions. Result and Conclusion： 25 ℃ is the most appropriate temperature for W. pigra spawning and incubation, the best spawning weight of W. pigra was around 20 g. The temperature influenced the lost weight after spawning significantly and was proportion to the lost weight. The body weight showed no substantial influence to the lost weight after spawning. The egg weight of W. pigra which body weight was below 2.0 g was proportion to the hatching rate. The same relationship was not observed in W. p/gra over 2.0 g.

关 键 词：蚂蟥 水蛭 繁殖 温度 体重 

分 类 号：S966.9[农业科学—水产养殖]