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Responses of hybrid sturgeon (Huso dauricus female x Acipenser schrenckii male) to oral administration of phosphorus

文献类型： 外文期刊

作者： Jin, Jiali 1 ; Chu, Zhipeng 1 ; Chen, Xihua 1 ; Liang, Xufang 2 ;

作者机构： 1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, 8 Wudayuan First Rd, Wuhan 430223, Peoples R China

2.Huazhong Agr Univ, Coll Fisheries, Wuhan, Peoples R China

关键词： blood Ca; hybrid sturgeon; intubation; P excretion; urea excretion

期刊名称：AQUACULTURE RESEARCH （ 影响因子：2.082； 五年影响因子：2.415 ）

ISSN： 1355-557X

年卷期：

页码：

收录情况： SCI

摘要： To better understand the phosphorus (P) utilization in hybrid sturgeon (Huso dauricus female x Acipenser schrenckii male), a combined technique with oesophageal intubation, dorsal aorta cannulation and urinary catheterization was used in the present study. Groups of five hybrid sturgeon were orally administrated with graded doses of P (0, 50, 100 and 200 mg P/kg BW) in the form of monocalcium phosphate. The high dose of P (200 mg P/kg BW) caused a significant increase in plasma P concentration. Plasma calcium (Ca) concentrations were significantly increased in the fish treated with 0 and 100 mg P/kg BW. Both P and urea excretion showed increased changing pattern with increasing P intubation level and exhibited significant higher value in 200 mg P/kg BW group. A significant increase in Ca excretion was found in the group without P supplementation (0 mg P/kg BW). ALP and SOD activity in plasma was inhibited in fish at P-deficient groups (0 and 50 mg P/kg BW). The data in the current study showed that hybrid sturgeon at 100 mg P/kg BW treatment exhibited better P and Ca utilizations with lower waste excretion, as well as favourable status of anti-oxidation.

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