| 不同放牧强度对草地和绵羊生产性能影响 |
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| 引用本文： | 贾志海,王培.不同放牧强度对草地和绵羊生产性能影响[J].中国畜牧杂志,1990,26(5):6-9. |
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| 作者姓名： | 贾志海 王培 |
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| 作者单位： | 北京农业大学畜牧系
(贾志海)，北京农业大学畜牧系(王培) |
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| 摘 要： | 本试验是1988年在湖南省南山牧场改良草地上用绵羊进行的3种放牧强度的放牧研究。结果表明:不同放牧强度对牧草产量、绵羊繁殖率和增重差异均不显著(P>0.05),但以每亩草地计算,不同放牧强度绵羊增重差异显著(P<0.01)。高放牧强度(每羊1.5亩草地)能促进人工栽培牧草分蘖,抑制野生杂草数量。
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| 关 键 词： | 绵羊 草地 放牧 生产性能 |
EFFECTS OF GRAZING INTENSITIES ON PASTURE AND EWE PRODUCTIVITIES |
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| Abstract: | This study was dealt with the effects of grazing intensities on pasture and ewe productivities at an improved mountain pasture, which was located on Nan Shan Livestock Farm, Hu Nan province, in 1988. Three grazing intensities (high 1.5mu/head, medium 2mu/head, and lower 2.5mu/h(?)ad) were not affected ewe reproductive efficiency and total yield of forage grass (p>0.05). However, The species composition of the pasture and ewe gain in livesweight were affected. The result shows that increasing grazing intensity could increased tiller number of planted grass and controled tiller of wild grasses, and increased ewe livesweight. The conclusion shown that the medium and higher grazing intensity will be efficient on improved mountain pasture in Nan Shan. |
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