| 沙地放牧系统反刍家畜选择性采食行为的研究 |
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| 引用本文： | 赵钢,许志信,李德新.沙地放牧系统反刍家畜选择性采食行为的研究[J].内蒙古大学学报(自然科学版),2006,37(3):311-316. |
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| 作者姓名： | 赵钢 许志信 李德新 |
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| 作者单位： | 1. 仲恺农业技术学院,广州,5102251;内蒙古农业大学生态环境学院,呼和浩特,010018
2. 内蒙古农业大学生态环境学院,呼和浩特,010018 |
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| 基金项目： | 中国科学院知识创新工程项目;内蒙古农业大学校科研和教改项目 |
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| 摘 要： | 分别在春、夏、秋、冬四季对蒙古牛和蒙古羊24小时放牧周期内的选择性采食行为进行了观测研究.研究结果表明:蒙古牛和蒙古羊均表现出一定强度的选择性采食行为,但蒙古牛和蒙古羊的食物构成具有明显不同.蒙古牛和蒙古羊的食物生态位宽度分别为0.64和0.67,二者无明显差异(P>0.05).蒙古牛春季的生态位宽度显著低于夏季,而与秋季和冬季类似;蒙古羊则以春季的生态位宽度最大,秋季最小.蒙古牛和蒙古羊的食物生态位重叠度为60%.
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| 关 键 词： | 蒙古牛 蒙古羊 采食行为 选择性采食 |
| 文章编号： | 1000-1638(2006)03-0311-06 |
| 收稿时间： | 2005-09-22 |
| 修稿时间： | 2005年9月22日 |
A Study on Selective Grazing Behaviour of Ruminants in Sand Pasture System |
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| ZHAO Gang,XU Zhi-xin,LI De-xin.A Study on Selective Grazing Behaviour of Ruminants in Sand Pasture System[J].Acta Scientiarum Naturalium Universitatis Neimongol,2006,37(3):311-316. |
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| Authors: | ZHAO Gang XU Zhi-xin LI De-xin |
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| Affiliation: | 1. Zhongkai University of Agriculture and Technology, Guangzhou 510225 ,China ; 2. College of Ecology and Envirnment, Agricultural University of Inner Mongolia , Hohhot 010018 ,China |
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| Abstract: | The selective grazing behaviour of Mongolian sheep and Mongolian cattle during 24-hour period was observed in spring,summer,autumn,and winter respectively.The results showed that the Mongolian sheep and cattle foraged different plants species,both of them show a selective grazing behaviour,but the sheep foraged more selectively than Mongolian cattle.The food niche width of Mongolian cattle and sheep was 0.64 and 0.67 respectively,and there was no significant difference between them(P>0.05).The food niche width of cattle in spring was significantly lower than that in summer,but similar to that in autumn and winter.The food niche width of sheep in spring was significantly higher than that in other seasons,and that in autumn was the lowest.The over lap of the food niche of cattle and sheep was about 60%. |
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| Keywords: | Mongolian cattle Mongolian sheep foraging behaviour selective grazing |
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