| 锰源及锰水平对产蛋母鸡生理生化指标的影响 |
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| 引用本文： | 陈寒青,吴晋强.锰源及锰水平对产蛋母鸡生理生化指标的影响[J].安徽农业科学,2001,29(5):669-671,674. |
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| 作者姓名： | 陈寒青 吴晋强 |
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| 作者单位： | 安徽农业大学畜牧水产学院,合肥,230036 |
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| 摘 要： | 本试验采用 2× 3因子设计 ,将 14 4只 2 3周龄商品代罗曼产蛋母鸡随机分成 6组 ,每组 2 4只。共设 6种处理 ,每组试验鸡接受 1种处理 ,每 1处理设 3个重复。处理①、②、③分别按 0、6 0和 12 0mg/kg 3种锰水平在基础饲粮中添加硫酸锰 ,处理④、⑤和⑥则分别按 0、6 0和 12 0mg/kg 3种锰水平添加蛋氨酸锰 ,以研究不同锰源及锰水平对产蛋母鸡生理生化指标的影响。试验期 10 5d。结果表明 :饲粮中无论添加硫酸锰还是蛋氨酸锰 ,随着饲粮锰水平的提高 ,蛋壳和蛋内容物中锰含量均随之提高 ,且蛋壳中锰含量高于蛋内容物。不同锰水平对血液和肌肉中锰含量以及血清中Mn SOD活性均无显著影响 (P >0 .0 5 ) ;而且在同一锰水平下 ,不同锰源间差异亦不显著 (P >0 .0 5 )。不同锰水平对胫骨中锰含量影响显著 ,饲粮中添加硫酸锰 ,当锰添加水平从 0提高到 12 0mg/kg时 ,胫骨中锰含量显著提高 (P <0 .0 5 ) ;而饲粮中添加蛋氨酸锰 ,当锰添加水平从 0提高到 6 0mg/kg时 ,即可显著提高胫骨中锰含量 (P <0 .0 5 )。
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| 关 键 词： | 锰源 锰水平 生理生化指标 产蛋母鸡 |
Effect of Manganese Levels and Sources on Physiological- biochemical Indices of Laying Hens |
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| Chen Hanqing et al.Effect of Manganese Levels and Sources on Physiological- biochemical Indices of Laying Hens[J].Journal of Anhui Agricultural Sciences,2001,29(5):669-671,674. |
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| Authors: | Chen Hanqing |
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| Abstract: | An experiment was conducted to study the effects of different manganese levels and sources on physiological-biochemical indices of laying hens. According to 2×3 factorial design, 144 23-week-old Lohman commercial laying hens were divided randomly into 6 groups of 24 hens each. There were 3 replications per group and 8 hens per replication. The basal corn-soybean meal diet(31.91 mg/kg Mn) was supplemented with 0, 60 and 120 mg/kg Mn from manganese sulfate(MnSO 4.H 2O) or Mn methionine(Mn Met).The duration of the experiment was for 15 weeks. The results showed that the basal diet was supplemented with Mn from either MnSO 4.H 2O or Mn Met, the manganese contents in egg shell and egg increased as dietary manganese increased, and the manganese content in egg shell was higher than that in egg.Different manganese levels had no significant effect on the manganese contents in blood and muscle and the activity of Mn SOD in serium( P >0.05), and there were no significant differences between MnSO 4.H 2O and Mn Met as well( P >0.05). Different manganese levels affected the manganese concentration in tibia bone.The manganese content in tibia bone increased markedly when dietary supplemental manganese from MnSO 4.H 2O increased from 0 to 120 mg/kg( P <0.05), and it increased significantly as dietary supplemental manganese from Mn Met increased from 0 to 60 mg/kg( P <0.05). |
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| Keywords: | Manganese Source Manganese Level Physiological-biochemical Index Laying Hen |
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