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首页> 外文期刊>Indian Journal of Fisheries >Effect of dietary supplementation of chromium on growth and biochemical parameters of Labeo rohita (Hamilton) fingerlings
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Effect of dietary supplementation of chromium on growth and biochemical parameters of Labeo rohita (Hamilton) fingerlings

机译：饮食中铬的添加对罗密欧拉贝幼鱼生长和生化指标的影响

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A 60-day feeding experiment was conducted to evaluate the effect of dietary chromium on growth, feed efficiency and biochemical parameters of Labeo rohita fingerlings. Four isonitogenous (crude protein 35%) and isocaloric (415 k cal 100 g(-1)) experimental feeds were prepared by supplementing different levels of dietary chromium picolinate viz., control (0.0 mg kg(-1)), T1 (0.4 mg kg(-1)), T2 (0.8 mg kg(-1)) and T3(1.2 mg kg(-1)). Weight gain WG (%), specific growth rate (SGR), feed efficiency ratio (FER) and protein efficiency ratio (PER) and apparent net protein utilisation (ANPU %) were significantly improved (p<0.05) when chromium was supplemented at 0.8 mg kg(-1) feed. The protein retention (PR %) value increased with the dose of chromium, showing the highest value in T2 group. Chromium supplementation significantly increased (p<0.05) liver glycogen in T1 and T2 groups but decrease was observed at high level of chromium supplementation in T3 group. Chromium supplementation significantly reduced (p<0.05) serum cholesterol and triglycerides in all the experimental groups compared to control showing the highest reduction in T2 group. The serum high density lipoproteins-cholesterol (HDL-C) was increased (p<0.05)in all experimental groups due to chromium supplementation and the highest blood HDL-C was observed in T2 group. However, no difference (p<0.05) in the serum low density lipoproteins-cholesterol (LDL-C) and phospholipid was observed in any of the experimental groups. Similarly, highest muscle protein as well as lowest liver AST and ALT were observed in T2 group. The results of the present study indicates that growth, feed utilisation and biochemical parameters in Labeo rohita can be significantly improved by feeding the fingerlings with chromium picolinate supplemented diet (0.8 mg kg(-1)feed)
机译：进行了为期60天的饲养实验，以评估日粮铬对Labeo rohita鱼种生长，饲料效率和生化参数的影响。通过补充不同水平的膳食吡啶甲酸铬，即对照（0.0 mg kg（-1）），T1（0.4），制备了四种同质（粗蛋白35％）和等热量（415 k cal 100 g（-1））实验饲料。 mg kg（-1）），T2（0.8 mg kg（-1））和T3（1.2 mg kg（-1））。当铬的添加量为0.8时，体重增加WG（％），比生长速率（SGR），饲料效率比（FER）和蛋白质效率比（PER）和表观净蛋白质利用率（ANPU％）显着提高（p <0.05）毫克kg（-1）饲料。蛋白质保留率（PR％）值随铬剂量的增加而增加，在T2组中显示最高值。在T1和T2组中，铬的添加显着增加（p <0.05）肝糖原，但在T3组中，高水平的铬添加可观察到减少。与对照组相比，补充铬显着降低了所有实验组的血清胆固醇和甘油三酸酯（p <0.05），显示出T2组的降低幅度最大。由于铬的补充，所有实验组的血清高密度脂蛋白胆固醇（HDL-C）均升高（p <0.05），并且在T2组中观察到最高的血液HDL-C。然而，在任何实验组中，血清低密度脂蛋白胆固醇（LDL-C）和磷脂均无差异（p <0.05）。类似地，在T2组中观察到最高的肌肉蛋白以及最低的肝脏AST和ALT。本研究的结果表明，通过向鱼种饲喂吡啶甲酸铬补充饲料（0.8 mg kg（-1）饲料）可以显着改善Labeo rohita的生长，饲料利用率和生化参数。

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