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受邀审查:流血酸性病及其定义-一个批判性审查

H M Golder¹, I J Lean¹

¹Scibus, Camden, NSW 2570 Australia; Dairy Science Group, School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Camden, NSW 2570, Australia.

Journal of dairy science

|September 1, 2024

概括

乳牛的乳汁酸性腐蚀是复杂的,不仅仅是乳汁的低pH值. 一个新的模型 (BAM) 整合了VFA,氨,乳酸和pH,更好地反映了疾病的严重程度和对牛奶生产的影响.

科学领域:

动物的营养和新陈代谢
兽医内科兽医内科
乳牛的健康状况乳牛的健康状况

背景情况:

酸性酸性病是一种由牛中的失生症和代谢问题引起的疾病谱.
在乳牛中,亚临床胃酸性粉症 (SRA) 非常普遍,在早期哺乳期影响10-26%的乳牛.
以往仅基于皮pH值的定义是不够的,因为这种情况的动态性质.

研究的目的:

解决单点pH值测量在定义和评估反动物酸性病时的不足问题.
引入和验证一个更全面的模型来评估虫酸性病.
探索改善SRA的诊断和检测方法.

主要方法:

开发了布拉姆利酸性化模型 (BAM),集成了挥发性脂肪酸 (VFA),氨,乳酸和pH值.
比较BAM与单个皮的pH值测量,以发现疾病的关联.
确定特定的VFA (propionate,valerate) 作为SRA的敏感指标.

主要成果:

BAM比单独的乳头pH更准确地预测疾病,牛奶产量和牛奶成分.
特定的VFA,酸和酸,对SRA具有很高的敏感性和特异性.
综合措施提供了更可靠的评估,复杂的牛酸性化症.

结论:

酸性酸性病是一种复杂的代谢状况,需要除了简单的pH监测之外采取综合诊断措施.
布拉姆利酸性疾病模型 (BAM) 提供了一种更适合牛酸性疾病的评估.
更广泛的定义和先进的传感技术对于改善SRA检测和管理至关重要.

关键词:

埃文斯的假设是他的假设.乳酸乳酸是什么意思乳酸是什么意思 rumen 的pH值是什么值得一提的是,它是值得的.

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