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| 高山草原绵羊放牧生态及消化代谢系列研究Ⅲ。放牧绵羊食入牧草消化率动态及其限制性因素分析 | |
| 引用本文： | 刘金祥,胡自治,梁秀,苏文娟.高山草原绵羊放牧生态及消化代谢系列研究Ⅲ。放牧绵羊食入牧草消化率动态及其限制性因素分析[J].草业科学,2001,18(2):28-31. |
| 作者姓名： | 刘金祥 胡自治 梁秀 苏文娟 |
| 作者单位： | 1. 东北师范大学草地研究所, 2. 甘肃农业大学草业学院, 3. 甘肃省皇城绵羊育种试验场, |
| 基金项目： | 国家自然科学基金;3963025; |
| 摘 要： | 采用羊粪液代替瘤胃液的牧草干物质二级离体消化率和绵羊食道瘗管方法研究高山草原放牧绵羊采食牧草干物质消化率季节动态,结果表明,在草地牧草生长的7月、8月、10月和1月,绵羊食入牧草(DM)消化率分别为61.00±1.96%,58.84±1.93%,51,40±0.84%和40.58±1.13%;同时应用灰色关联度分析方法对放牧绵羊食入牧草消化率限制因素综合分析认为:湿度、CP、NFE是影响消化率的主要因素。 |
| 关 键 词： | 放牧绵羊 灰色关联度 季节动态 食入牧草消化率 湿度 CP NFE 牧草营养价值评价 |
| 文章编号： | 1001-0629(2001)02-0028-04 |
A serial study of grazing ecology and digestibility and metabolism of sheep on alpine pasture Ⅲ The analysis of seasonal dynamics and the restrictive factors of the diet digestibility by grazing sheep |
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| LIU Jin-xiang,Hu Zi-zhi,LIANG Xiu,SU Wen-juan.A serial study of grazing ecology and digestibility and metabolism of sheep on alpine pasture Ⅲ The analysis of seasonal dynamics and the restrictive factors of the diet digestibility by grazing sheep[J].Pratacultural Science,2001,18(2):28-31. | |
| Authors: | LIU Jin-xiang Hu Zi-zhi LIANG Xiu SU Wen-juan |
| Abstract: | The seasonal dynamics of in vitro dry matter digestibility of esophageal fistula Samples by grazing sheep on alpine pasture were studied. The results showed that the digestibility were 61.00±1.96%, 58. 84±1.93%, 51.40±0.84% and 40. 58+1.13% in July, August, October and January, respectively. The relative humility, crude protein and nitrogen-free extract were the main restrictive factors to affect the digestibility by using grey system analysis method. |
| Keywords: | grazing sheep digestibility dynamics grey system analysis |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |