| 日粮中添加玉米油对肉牛瘤胃发酵的影响 |
| |
| 引用本文： | 李凤学,赵广永,杨雅芳.日粮中添加玉米油对肉牛瘤胃发酵的影响[J].中国畜牧杂志,2001,37(1):16-17. |
| |
| 作者姓名： | 李凤学 赵广永 杨雅芳 |
| |
| 作者单位： | 中国农业大学动物科技学院, |
| |
| 基金项目： | 国家自然科学基金项目部分内容，批准号39400094 |
| |
| 摘 要： | 3头装有瘤胃瘘管的成年杂种牛 ,按 3× 3拉丁方试验设计 ,饲以添加 0 %、4 %和 8%玉米油的稻草和精料混合料 ( 2 1 )日粮。在饲喂后 2、4、6、8h采集瘤胃液样品 ,分别测定瘤胃液pH值、NH3-N和VFA浓度。结果表明 ,添加 4 %和 8%玉米油对瘤胃液pH值、NH3-N浓度没有显著影响 (P >0 .0 5) ;添加玉米油 4 %对瘤胃总VFA浓度没有显著影响 (P >0 .0 5) ,但添加 8%玉米油使瘤胃总VFA和乙酸浓度显著下降 (P <0 .0 5)。添加 8%以下的玉米油对丙酸、丁酸浓度没有影响 (P >0 .0 5) ,结果使乙酸 /丙酸比值从 3.75分别下降到 3.2 6和 3.1 4 (P <0 .0 5)。
|
| 关 键 词： | 玉米油 瘤胃发酵 肉牛 |
| 文章编号： | 0258-7033(2001)01-0016-02 |
| 修稿时间： | 2000年2月10日 |
Effects of Corn Oil on the
Rumen Fermentation in Cattle |
| |
| LI Feng-xue,ZHAO Guang-yong,YANG Ya-fang.Effects of Corn Oil on the
Rumen Fermentation in Cattle[J].Chinese Journal of Animal Science,2001,37(1):16-17. |
| |
| Authors: | LI Feng-xue ZHAO Guang-yong YANG Ya-fang |
| |
| Abstract: | Three adult hybrid cattle fitted with rumen cannulas in a 3×3 Latin square design, were fed with diets based on rice straw and mixed concentrates (2:1) and added with 0%,4%or8%corn oil. The rumen fluid samples were collected in 2,4,6 and 8 h after morning feeding. Rumen pH was measured, and NH3-N and VFA were determined. The results show that addition of 4% or 8% corn oil did not influence the rumen pH and NH3-N concentration (P>0.05). Addition of 4% corn oil did not influence VFA (P>0.05), but 8% corn oil significantly decreased the total VFA and acetic acid concentration, respectively (P<0.05). The addition of less than 8% corn oil did not influence the propionic concentration and butyric acid concentration (P>0.05). Addition of 4% and 8% corn oil significantly decreased the ratio of acetic to propionic acid from 3.75 to 3.26 and 3.14, respectively (P<0.05). |
| |
| Keywords: | Corn oil Rumen fermentation Cattle |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
