| 奶牛围产前期钙的稳态和负DCAD日粮的应用 |
| |
| 引用本文： | 李岩,付瑶,陈勇,魏政.奶牛围产前期钙的稳态和负DCAD日粮的应用[J].中国农学通报,2021,37(35):88-92. |
| |
| 作者姓名： | 李岩 付瑶 陈勇 魏政 |
| |
| 作者单位： | 1.农业农村部人力资源开发中心/中国农学会,北京 100125;2.北京市畜牧总站,北京 100107;3.北京市顺义区农业农村局,北京 101399 |
| |
| 摘 要： | 围产期是奶牛泌乳周期乃至一生中最为关键的阶段,围产期的饲养管理对奶牛整个泌乳期的产奶性能、繁殖性能和健康状况都有影响。鉴于围产期奶牛的营养和生理研究的不断深入,尤其是奶牛围产前期钙的稳态得到越来越多的关注,负日粮阴阳离子差(dietary cation-anion difference, DCAD)日粮,即阴离子日粮作为一种有益的探索在国外牛场获得大规模推广应用,本文在综合阐述钙的稳态、吸收、释放规律和负DCAD日粮的特征的基础上,对负DCAD日粮的应用提出生产上的建议：在合理的干物质采食量(dry matter intake, DMI)基础上,目前普遍使用负DCAD日粮和高钙水平相结合,设定-100~ -150 meq/kg的DCAD水平,配合0.4%左右的高镁含量和低磷水平,对应尿液应该在pH 5.5~6.5。
|
| 关 键 词： | 围产期 奶牛 钙 负DCAD日粮 低血钙症 生产应用 |
| 收稿时间： | 2021-09-06 |
Calcium Homeostasis and Application of Negative DCAD Diet in Cows During Close-up Period |
| |
| Li Yan,Fu Yao,Chen Yong,Wei Zheng.Calcium Homeostasis and Application of Negative DCAD Diet in Cows During Close-up Period[J].Chinese Agricultural Science Bulletin,2021,37(35):88-92. |
| |
| Authors: | Li Yan Fu Yao Chen Yong Wei Zheng |
| |
| Institution: | 1.Human Resources Development Center of Ministry of Agriculture and Rural Affairs and China Association of Agricultural Science Societies, Beijing 100125;2.Beijing General Station of Animal Husbandry, Beijing 100107;3.Shunyi District Bureau of Agriculture and Rural Affairs of Beijing Municipality, Beijing 101339 |
| |
| Abstract: | |
| |
| Keywords: | periparturition cows calcium negative DCAD diet hypocalcemia production application |
|
| 点击此处可从《中国农学通报》浏览原始摘要信息 |
| 点击此处可从《中国农学通报》下载免费的PDF全文 |
|
