Utilization and Metabolism of a-Starch by Black Carp (Mylopharyngodon piceus) Juveniles
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;Zhu Jian;Liu Bo;Zhou Qun-Lan;Miao Ling-Hong;Ren Ming-Chun;Ge Xian-Ping;Xie Jun;Zhu Jian;Liu Bo;Zhou Qun-Lan;Pan Liang-Kun
作者机构:
关键词: Mylopharyngodon piceus;carbohydrate;growth;immunity;transmission electron microscopy
期刊名称:ISRAELI JOURNAL OF AQUACULTURE-BAMIDGEH ( 影响因子:0.287; 五年影响因子:0.593 )
ISSN: 0792-156X
年卷期: 2016 年 68 卷
页码:
收录情况: SCI
摘要: The ability of black Carp Mylopharyngodon piceus, to utilize high levels of dietary carbohydrate was assessed using artificial purified feed, containing normal (20%, NS group) and high (40%, HS group) levels of digestible carbohydrate. After a 10 week feeding trial, specific growth rate, weight gain rate, and protein efficiency ratio of the HS group were significantly lower (P<0.05). The 40% carbohydrate diet significantly influenced the crude protein and crude fat levels in the muscle tissue (P<0.05). Plasma cortisol of the HS group was significantly lower (P<0.05), and levels of plasma triglycerides and total cholesterol were highly significantly lower (P<0.01). Hepatic superoxide dismutase concentrations of the HS group were lower (P<0.05), and contents of the carbohydrate metabolic enzyme, hepatic pyruvate kinase were highly significantly lower (P<0.01). Hepatic ultrastructure results show that the high carbohydrate diet induced sedimentation of glucose and fat in the hepatic cells, and ultrastructural damage was observed. Although Mylopharyngodon piceus are able to tolerate long-term feeding of the 40% carbohydrate diet, effects on growth and immunity were negative resulting in ultrastructural damage of the hepatic cells.
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