| 日粮中不同水平维生素C对团头鲂幼鱼生长、 血液学及肌肉理化指标的影响 |
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| 引用本文： | 万金娟,刘波,戈贤平,谢骏,崔素丽,周明.日粮中不同水平维生素C对团头鲂幼鱼生长、 血液学及肌肉理化指标的影响[J].上海海洋大学学报,2013,22(1):112-119. |
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| 作者姓名： | 万金娟 刘波 戈贤平 谢骏 崔素丽 周明 |
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| 作者单位： | 中国水产科学研究院淡水渔业研究中心;中国水产科学研究院淡水渔业研究中心;中国水产科学研究院淡水渔业研究中心;中国水产科学研究院淡水渔业研究中心;中国水产科学研究院淡水渔业研究中心;中国水产科学研究院淡水渔业研究中心 |
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| 基金项目： | 现代农业产业技术体系建设专项资金（CARS-46）；公益性行业（农业）科研专项经费（201003020）；中央级公益性科研院所基本科研业务费专项资金项目（2012A0602） |
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| 摘 要： | 以酪蛋白和明胶为蛋白源,豆油为脂肪源配制团头鲂幼鱼基础饲料,制成维生素C水平为0.2、33.4、65.8、133.7、251.5mg/kg和501.5 mg/kg的6种等氮等能的试验饲料。每种试验饲料随机投喂3组实验团头鲂幼鱼,每天投喂3次,达饱食水平,试验周期为90 d。结果表明,随着饲料中维生素C添加量的增加,增重率(WG)、特定生长率(SGR)呈先上升而后趋于平缓的趋势,其中251.5 mg/kg和501.5 mg/kg Vc添加组团头鲂WG、SGR显著高于对照组(P<0.05)。各组间肝体比(HSI)和肥满度(CF)无显著性差异,仅133.7 mg/kg Vc添加组团头鲂脏体比(VSI)显著高于对照组(P<0.05)。与对照组相比,饲料中添加65.8～501.5mg/kg Vc显著降低了血液中白细胞(WBC)数量;添加65.8 mg/kgVc显著降低了血清谷草转氨酶(AST)活力,133.7 mg/kg和501.5mg/kg试验组显著降低了谷丙转氨酶(ALT)的水平;添加501.5mg/kg Vc显著提高了团头鲂血清中甘油三酯(TG)的水平;添加133.7 mg/kg Vc显著提高了肌肉中SOD活性(P<0.05)。饲料中维生素C不同添加量对团头鲂幼鱼成活率、血液中红细胞(RBC)数量、血清碱性磷酸酶(ALP)水平、肌肉蒸煮损失等均无显著影响(P>0.05)。以鱼体增重率为评价指标,经折线模型回归分析,得到团头鲂幼鱼饲料中Vc的适宜添加量为150 mg/kg。
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| 关 键 词： | 团头鲂 维生素C 生长 血液学 肌肉理化指标 |
| 收稿时间： | 9/7/2012 12:00:00 AM |
| 修稿时间： | 2012/11/16 0:00:00 |
Effects of dietary vitamin C on growth performance, hematology and muscle physiochemical indexes of juvenile Wuchang bream (Megalobrama amblycephala) |
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| wanjinjuan,liubo,gexianping,xiejun,cuisuli and zhouming.Effects of dietary vitamin C on growth performance, hematology and muscle physiochemical indexes of juvenile Wuchang bream (Megalobrama amblycephala)[J].Journal of Shanghai Ocean University,2013,22(1):112-119. |
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| Authors: | wanjinjuan liubo gexianping xiejun cuisuli and zhouming |
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| Institution: | 1.Wuxi Fisheries College,Nanjing Agricultural University,Wuxi 214081,Jiangsu,China;2.Freshwater Fisheries Research Center,Chinese Academy of Fishery Sciences,Wuxi 214081,Jiangsu,China) |
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| Abstract: | An 90 days feeding trial was conducted to estimate the adequate dietary vitamin C requirement of juvenile Wuchang bream (Megalobrama amblycephala) and its effect on on growth, physiological and biochemical, immunity and three HSPs mRNA expression. 540 healthy fish with initial body weight(6.40±0.05)g were selected and randomly divided into six groups and Vc supplemented at 0.2 ,33.4,65.8 ,133.7,251.5 and 501.5 mg/kg diet. After 90 days feeding, the growth performance, hematology and muscle physiochemical indexes were investigated. The results showed that the weight gains (WG) and specific growth rate (SGR) had an increasing trend with the increase of dietary vitamin C, the fish in 251.5 mg/kg and 501.5 mg/kg Vc group had significantly higher SGR then those in the control group (P<0.05); while the feed coefficient reduced with increasing of dietary vitamin C, but no significant difference were observed among dietary treatments (P>0.05). The fish body indices were not significantly different among groups, except the viscerosomatic index in fish with 120 mg/kg vitamin C was significantly higher then the control group (P<0.05). Compared with the control, total leukocytes count in fish with 65.8-501.5 mg/kg vitamin C, the contents of serum glutamic-oxaloacetic in fish with 65.8 mg/kg, and the contents of serum glutamic-pyruvicStransaminase in fish with 133.7 mg/kg and 501.5 mg/kg were significantly reduced (P<0.05). The contents of serum triglycerides and complement 3 in fish with 501.5 mg/kg, total superoxide dismutase activities in the musclr in fish with 133.7 mg/kg were significantly improved (P<0.05). Other indices, such as erythrocyte, hemoglobin, platelets,Salbumin and cooking loss of muscle were not significantly different between groups(P>0.05). Based on broken-line model analyses at this study, the minimum dietary vitamin C level is 150 mg/kg to get optimal WG. |
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| Keywords: | Wuchang bream (Megalobrama amblycephala) vitamin C growth performance hematology physiochemical indexes |
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