四种微量元素对胡子鲶体表色素含量的影响

试验主要探讨4种微量元素Cu、Fe、Mn、Zn对胡子鲶体表色素含量的影响。对L(934)正交设计养殖的胡子鲶,测定各试验组鱼体皮肤总的类胡萝卜色素和叶黄素含量。结果表明:胡子鲶背部皮肤类胡萝卜色素含量随Cu、Fe补充量的增加而升高,随Zn、Mn补充量的增加而降低;胡子鲶背部皮肤叶黄素含量随Cu、Fe、Mn补充量的增加而升高,随Zn补充量的增加而下降;胡子鲶腹部皮肤类胡萝卜色素含量随Cu、Fe、Mn、Zn补充量的增加而下降;胡子鲶腹部叶黄素含量随Cu补充量的增加而显著升高,Fe、Mn、Zn的补充量对其影响不大。

Effect of four trace elements on contents of body coloring matter for charias fuscus

In order to study the influence of the four trace elements on body coloring matter, we process the experiment.Using L9(34) orthogonal design,a 56-days Clarias fuscus mesh cage breed aquatics experiment was carried out in pond. Through determining the contents of carotinoid and lutein xanthin in every experiment group, we had results that as contents of Cu and Fe increased, the contents of carotinoid in clarias fuscus' back skin increased too. However, the two elements Mn and Zn are opposite. As contents of Cu, Fe and Mn increased, the contents of lutein xanthin in clarias fuscus' back skin increased too. However, the Zn is opposite. As contents of Cu, Fe, Mn and Zn increased, the contents of carotinoid in clarias fuscus' belly skin decreased. As contents of Cu increased, the contents of lutein xanthin in clarias fuscus' belly skin increase too. However, the increases of Zn, Fe and Mn hadn't marketable influence.