牛酮血症的发生机制及其综合防治-毕业论文（设计）.docVIP

牛酮血症的发生机制及其综合防治 PAGE 9 东北农业大学学士学位论文 学号：966牛酮血症的发生机制及其综合防治 Bovine acetonemia occurrence mechanism and its integrated control 学生姓名： 指导老师： 所在院系：网络教育学院 所学专业：动物医学 研究方向：动物医学 东 北 农 业 大 学 中国·哈尔滨 摘 要 在我国农村存在着大量散户奶农，由于他们粗放式的饲养，导致养殖效益差，疾病问题困扰严重。奶牛酮血症就是其中之一。它经常在成年母牛产犊后几天或数周内。对养殖户的经济利益构成严重威胁。要想控制酮血症的发生，必须竖立先进的饲养观念、科学的管理，合理的治疗。把养殖效益与饲养方式紧密联系在一起，才能有效的降低奶牛酮血症的发生机率，进而才能使养殖户增产增收。也只有这样才能保证，奶牛事业在广大农村更好更快的发展和壮大，从单纯的依靠养殖数量来提高养殖效益向依靠养殖质量来提高养殖效益转变。 关键词： 养殖户；疾病；奶牛酮血症；养殖效益。 Abstract In our country there are a large number of small dairy farmers, because of their extensive farming, leading to breed benefit difference, serious disease problems. Dairy cow ketosis is one of them. It is often in adult cows calving after a few days or weeks. On farmers economic benefits pose a serious threat to. In order to control the occurrence of ketonemia, must set up advanced breeding idea, scientific management, rational treatment. The benefit of breeding and breeding closely together, can effectively reduce the occurrence probability of dairy cow ketosis, which can make the farmers increase income. Only in this way can we ensure the cows in the vast rural areas, the cause of better and faster development and expansion, from the simple to rely on the number of farms to improve the breeding benefit to rely on quality to improve the breeding benefit change culture. Key words: Farmers; disease; dairy cow ketosis: breed benefit 目 录 摘要……………………………………………………………………………………………I Abstract………………………………………………………………………………………II 1 前言………………………………………………………………………………………1 1.1 研究的目的和意义…………………………………………………………………………1 1.2研究的主要内容……………………………………………………………………1 2 牛酮血症发生的原因……………………………………………………………………………2 2.1………………………………………………………………………………………………2 2.2………………………………………………………………………………………………2 2.3………………………………………………………………………………………………2 2.4………………………………………………………………………………………………2 3牛酮血症发生的机制……………………………………………………………………………3 3.1 ………………………………………………………………………………………………3 3.2 ………………………………………………………………………………