大鲵亲鲵的培育研究

2003-2005年在西安市大鲵(Andrias daviddanus)生态繁育养殖基地对大鲵亲体进行培育,分别采取单池群养培育、单池单养培育、雌雄一对一隔网单养培育三种培育方式开展试验.三种方式培育结果显示,雌雄素鲵参繁率为雌雄一对一隔网单养培育＞单池单养培育＞单池群养培育,且雌鲵整体发育优于雄鲵；产卵量为雌雄一对一隔网单养培育＞单池单养培育＞单池群养培育；亲鲵产后成活率为雌雄一对一隔网单荞培育=单地单养培育＞单池群养培育.雌雄一对一隔网单养对亲鲵培育较为有利,可以减少干扰与伤残.

Cultivation of the Giant Salamander(Andrias davidanus)Brood Stock

From 2003 to 2005,giant salamanders brood stock were breeded in three different conditions in Xi’an ecological breeding farm,including group breeding in one pond,individual breeding in one pond,pair breeding,a male and a female in one pond,and separated by net or not.The results showed the total reproduction rate was pair breeding > individual breeding > group breeding in both male and female,and the overall development of female giant salamander was better than male.The oviposition rate was pair breeding > individual breeding > group breeding;the survival rate of post-spawning salamander was pair breeding = individual breeding > group breeding.In conclusion,the pair breeding method,especially separated by net was the most appropriate way to breed of the giant salamander,as it reduced interference and harm.