| 高锌日粮对奶牛产乳性能及血锌含量的影响 |
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| 引用本文： | 欧阳建华,黄爱民,刘宝生.高锌日粮对奶牛产乳性能及血锌含量的影响[J].中国饲料,2005(17):14-16. |
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| 作者姓名： | 欧阳建华 黄爱民 刘宝生 |
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| 作者单位： | 江西农业大学动物科技学院 |
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| 摘 要： | 选择经产期和产奶量相近的健康中国荷斯坦奶牛50头,完全随机分成5组,每组10头,分别饲喂基础日粮及添加150mg/kg和300mg/kg的有机锌和无机锌日粮。结果表明:1)添加150mg/kg和300mg/kg的锌对牛奶中乳脂率、乳蛋白、乳糖和非脂固形物(SNF)含量无显著影响(P>0.05);2)无机锌对产奶量无显著影响(P>0.05),而添加有机锌则可显著提高奶牛产奶量(P<0.05);3)高锌可极显著(P<0.01)提高血锌和乳锌含量,而且血锌与乳锌之间存在线性相关(r=0.627,n=50)。
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| 关 键 词： | 荷斯坦奶牛 高锌日粮 产乳性能 乳锌 血锌 |
| 文章编号： | 1004-3314(2005)17-0014-04 |
Effects of high zinc dietary on milk production and serum zinc content of dairy cattle |
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| OuyangJianhua HuangAimin et al..Effects of high zinc dietary on milk production and serum zinc content of dairy cattle[J].China Feed,2005(17):14-16. |
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| Authors: | OuyangJianhua HuangAimin |
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| Institution: | OuyangJianhua HuangAimin et al. |
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| Abstract: | Fifty Holstein cows, with similar performance and partum time, were randomly divided into 5 groups with 10 cattles per treatment.The effects of high zinc dietary on performance and milk component were studied.The results were as follows:1)There were no effects(P > 0.05)on milk fat, protein, lactose and solids- not- fat(SNF) by the supplementation of zinc; 2)No effects on milk production existed except organic zinc supplementation (P < 0.05); 3)Adding zinc extremely (P < 0.01)increased zinc content in serum and milk, furthermore, there was a liner correlation between serum zinc and milk zinc(r = 0.627, n = 50) |
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| Keywords: | Holstein cow high zinc dietary milk production milk zinc serum zinc |
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