Dietary vitamin D-3 requirement of Wuchang bream (Megalobrama amblycephala)
文献类型: 外文期刊
第一作者: Miao Ling-hong
作者: Miao Ling-hong;Ge Xian-ping;Xie Jun;Liu Bo;Zhu Jian;Ren Ming-chun;Zhou Qun-lan;Pan Liang-kun;Chen Ru-li;Miao Ling-hong;Ge Xian-ping;Xie Jun;Wang Ke-bao;Zhu Jian;Zhou Qun-lan
作者机构:
关键词: Wuchang bream (Megalobrama amblycephala);Vitamin D-3 requirement;Growth performance;Calcium;Phosphorus;Plasma physiological and biochemical
期刊名称:AQUACULTURE ( 影响因子:4.242; 五年影响因子:4.723 )
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收录情况: SCI
摘要: A 90-day feeding trial was conducted to quantify the dietary vitamin D3 requirement of Wuchang bream (Megalobrama amblycephala). Six isonitrogenous (34.39 +/- 0.12%, DM) and isolipidic (6.07 +/- 0.06%, DM) semipurified diets were formulated to contain graded vitamin D-3 levels (0, 0.50, 1.00, 2.00, 4.00, and 8.00 IU/g diet). At the end of the feeding trial, the growth performance, body and muscle composition, plasma and body physiological and biochemical index, including calcium, phosphorus, cholesterol, triglycerides, glucose and insulin, were determined. Based on the SGR and FCR, the optimal dietary vitamin D-3 requirement of Wuchang bream was estimated to be 5.43 IU/g and 4.97 IU/g using broken line regression estimation method, respectively. Whole body composition was independent of dietary vitamin D-3 levels, except for crude lipid, while muscle crude protein, crude lipid and ash were significantly dependent on dietary vitamin D-3 levels. The phosphorus content in plasma, whole body and muscle were independent of dietary vitamin D-3 levels. The calcium content in plasma increased with increasing dietary vitamin D-3 level from diet 0 to 1 IU/g, and thereafter declined with 2, 4 and 8 diets. Significantly higher plasma cholesterol, triglycerides and insulin content were observed in fish fed diets containing 8 and 2 IU/g vitamin D-3 (P < 0.05), while no significant differences in glucose content were observed with different dietary vitamin D-3 levels (P > 0.05). (C) 2014 Elsevier B.V. All rights reserved.
分类号: S9
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