肝胰腺
立陶宛
小虾
生物
动物科学
脂解
内科学
血淋巴
食品科学
内分泌学
化学
渔业
生物化学
脂肪组织
医学
作者
Lefei Jiao,Tianmeng Dai,Jingjing Lu,Xinyue Tao,Min Jin,Peng Sun,Qicun Zhou
标识
DOI:10.1016/j.marpolbul.2022.113421
摘要
So far, the adverse effects of excess Fe in shrimp have been ignored for years as it was thought that extra Fe supplementation was not needed in the practical diets. Nowadays, Fe concentration in commercial shrimp feed from feed enterprises could be around 301.34-545.5 mg/kg, which is mainly due to the fish meal containing up to 1500 mg/kg Fe. Therefore, the purpose of this experiment was to investigate the effects of Fe supplementation on the growth performance, tissue Fe deposition, hepatopancreas lipid metabolism, intestinal function in L. vannamei. The results showed that although growth performance was not influenced by the dietary Fe supplementation, excess Fe supplementation (955.00 mg/kg) significantly increased hepatopancreas Fe deposition and induced lipolysis. Moreover, excess Fe supplementation impaired intestinal immune function and disrupted microbiota homeostasis. These findings might provide partial theoretical evidence for the effect of dietary Fe supplementation on physiological metabolism in L. vannamei.
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