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| 干奶后期饲喂阴离子盐对奶牛离子平衡和产奶的影响 | |
| 引用本文： | 李斌,郭卫忠,孙长勉,刘庆平,孟庆翔.干奶后期饲喂阴离子盐对奶牛离子平衡和产奶的影响[J].乳业科学与技术,2003,26(4):186-189. |
| 作者姓名： | 李斌 郭卫忠 孙长勉 刘庆平 孟庆翔 |
| 作者单位： | 1. 中国农业大学动物科技学院,北京,100094 2. 北京三元绿禾奶牛养殖中心,北京,100076 3. 美国IMC公司,伊利诺州,60045 |
| 摘 要： | 采用28头荷斯坦经产牛按配对试验设计研究了添加阴离子盐对奶牛血液离子浓度、胎衣不下发病率及产后6个月泌乳性能的影响。结果表明,饲喂阴离子盐饲粮5天使尿液pH值显著降低(P<0.01),产前血清氯离子浓度提高(P<0.05),钙离子浓度趋于上升,并使分娩后胎衣不下的发病率降低31.2个百分点P=0.05)。第1、2、3、4泌乳月校正乳产量提高,且趋向提高乳脂率,但对乳蛋白、乳糖、非脂乳固体含量等乳成分没有明显影响(P<0.2)。饲喂阴离子盐能够显著降低产奶牛第2、3、4个泌乳月乳中的体细胞数P=0.03(0.09)。本试验结论:产前饲粮中添加阴离子盐能够改善奶牛产后的健康状况,提高泌乳性能。 |
| 关 键 词： | 奶牛 干奶后期 阴离子盐 离子平衡 泌乳性能 |
| 文章编号： | 1671-5187(2003)04-0186-0189 |
| 修稿时间： | 2003年8月19日 |
Effect of Anionic Salts in Prepartum Diets on the Ion Balance Statusand Lactating Performance of Dairy Cows |
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| Li Bin,Guo Weizhong,Sun Changmian,Liu Qingping and Meng Qingxiang.Effect of Anionic Salts in Prepartum Diets on the Ion Balance Statusand Lactating Performance of Dairy Cows[J].JOURNAL OF DAIRY SCIENCE AND TECHNOLOGY,2003,26(4):186-189. | |
| Authors: | Li Bin Guo Weizhong Sun Changmian Liu Qingping and Meng Qingxiang |
| Abstract: | Twenty -eight Holstein breed cows were randomly assigned to anionic salt - or control prepartum diet to investigate the effect of anionic salt addition on the acid-base status, blood ion concentrations, retained placenta incidence, and lactating performance. The urinary pH value of the cows fed the anionic salt diet dropped quickly to 6 below after 5 days feeding, and was significantly lower than that of the cow fed the control diets (P<0.01). Feeding anionic salt diets increased the concentration of Cl- in the plasma (p<0.05) before parturition, and tended to increase the concentration of Ca2+. As anionic salt diets were fed, the retained placenta incidence decreased 31.2 percentage units (P=0.05) compared with the control diet. The animals fed the anionic salt diet had a bit higher fat-corrected milk yield during 1st, 2nd, 3rd and 4th milking months, also had a tendency of higher milk fat content, but had no significant influence on the content of milk protein, lactose and SNF (P>0.2). The count of milk somatic cells was markedly decreased by feeding the diet with anionic salts (P=0.03(0.09) during the 2nd, 3rd and 4th milking months. It was concluded that the performance and health status of postpartum dairy cows can be improved when prepartum diets are supplemented with anionic salts. |
| Keywords: | prepartum anionic salt ion balance status lactating performance |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |