3种■体内微量元素测定与比较

测定了3种■(白缘■Liobagrus marginatus、拟缘■Liobagrus marginatoides、黑尾■Liobagrus nigricauda)肝、肾、肌肉和尾鳍4种组织中铬、锰、铁、铜和锌的含量,并将其与鲫(Carassius auratus)、黄颡鱼(Pelteobagrus fulvidraco)进行了比较分析。结果显示:鱼体5种微量元素总量由高到低依次为:白缘■、黑尾■、拟缘■、鲫、黄颡鱼;肌肉中5种元素含量由高到低依次为拟缘、黄颡鱼、鲫、黑尾■、白缘■;白缘■对铬和锌的富集作用比较突出,在上述几种组织中肝脏的富集作用最强。

Determination and Comparison of Microelements of Three Species of Liobagrus hilgendorf

The microelement(Cr2 ,Mn2 ,Fe3 ,Cu2 and Zn2 ) contents in liver,kidney,muscle and fin of Liobagrus marginatus,Liobagrus marginatoides,Liobagrus nigricauda,Carassius auratus and Pelteobagrus fulvidraco from Yangtze River were determined.The results showed that the sequence of 5 microelement gross in fish body is L.marginatus,L.nigricauda,L.marginatoides,C.auratus and P.fulvidraco from higher level to lower level.The sequence of 5 microelement gross in muscles is L.marginatoides,P.fulvidraco,C.auratus,L.nigricauda and L.marginatusfrom higher level to lower level.L.marginatus has rather outstanding enrichment action to Cr2 and Zn2 ,especially in its liver.