| 镁对草鱼生长、形体、肝功能和糖代谢的影响 |
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| 引用本文： | 汪福保,罗莉,文华,高开进,陈任孝,郭玉阳,朱根廷.镁对草鱼生长、形体、肝功能和糖代谢的影响[J].淡水渔业,2011,41(2):57-62,68. |
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| 作者姓名： | 汪福保 罗莉 文华 高开进 陈任孝 郭玉阳 朱根廷 |
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| 作者单位： | 中国水产科学研究院长江水产研究所中国水产科学研究院淡水生态与健康养殖重点开放实验室;西南大学动物科技学院淡水鱼类资源与生殖发育教育部重点实验室; |
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| 基金项目： | 国家“十一五”科技支撑计划(2006BAD03B03); 中国水产科学研究院淡水生态与健康养殖重点实验室开放课题(2007FE0209) |
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| 摘 要： | 在以酪蛋白和明胶为蛋白源的纯化日粮(镁含量76.9 mg/kg)中添加不同水平的镁(0、150、300、600、1200和2400 mg/kg),研究镁对体重为(10.68±0.14)g的草鱼(Ctenopharyngodon idella)生长、形体、肝功能和糖代谢的影响,时间为10周.结果显示:日粮中适当添加镁显著...
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| 关 键 词： | 镁 草鱼(Ctenopharyngodon idella) 生长 肝功能 血糖 |
Effects of dietary magnesium on the growth,body index,liver function and glucose metabolism of grass carp,Ctenopharyngodon idella |
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| WANG Fu-bao,LUO Li,WEN Hua,GAO Kai-jin,CHEN Ren-xiao,GUO Yu-yang,ZHU Gen-ting.Effects of dietary magnesium on the growth,body index,liver function and glucose metabolism of grass carp,Ctenopharyngodon idella[J].Freshwater Fisheries,2011,41(2):57-62,68. |
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| Authors: | WANG Fu-bao LUO Li WEN Hua GAO Kai-jin CHEN Ren-xiao GUO Yu-yang ZHU Gen-ting |
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| Institution: | WANG Fu-bao1,2,LUO Li2,WEN Hua1,GAO Kai-jin2,CHEN Ren-xiao2,GUO Yu-yang2,ZHU Gen-ting2(1.Key Laboratory of Freshwater Ecology and Healthy Aquaculture,Yangtze River Fisheries Research Institute,Chinese Academy of Fishery Sciences,Wuhan 430223,2.Key Laboratory of Freshwater Fish Reproduction and Development(Ministry of Education),College of Animal Science and Technology of Southwest University,Chongqing 400715) |
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| Abstract: | A 10-week feeding trial was conducted to evaluate the effects of dietary magnesium on the growth,body index,liver function and glucose metabolism of the grass carp,Ctenopharyngodon idella.Purified casein-gelatin-based diets(containing 76.9 mg mg/kg) supplemented with six levels of Mg(0,150,300,600,1200 and 2400 mg/kg,respectively) were fed to juvenile grass carps(initial weight:10.68±0.14 g).The results showed that:the highest specific growth rate(SGR),protein efficiency ratio(PER),protein retention(PR),weight/length(W/L) and lowest feed conversion rate(FCR) were observed for fish fed the diet containing 692.0 mg mg/kg(P<0.05).The optimal dietary level of magnesium significantly improved the liver function of the grass carp(P<0.05),but the liver function was mildly impaired,and the spleen index was significantly improved in fish fed the high-Mg diets(i.e.1200 and 2400 mg mg/kg supplemented).With the increase of dietary magnesium,liver aspartate alanine transaminase(GOT and GPT) showed a downward trend,while the GOT/GPT ratio was first increased and then decreased.But the liver glutamate dehydrogenase(GDH) activity was in the opposite trend.The GOT/GPT ratio reached the maximum at 692.0 mg/kg magnesiun level(P<0.05),while GDH activity reached the minimum.The optimal dietary level of magnesium significantly improved liver malate dehydrogenase(MDH) activity and promoted hepatic glycogen deposition(P<0.05).High-Mg diets(=1200 mg/kg supplemented) significantly reduced blood glucose levels of the grass carp(P<0.05),and the other groups showed no significant difference(P>0.05). |
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| Keywords: | Magnesium Ctenopharyngodon idella growth liver function blood glucose |
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