■作为畜牧业中的传染性和慢性疾病,副结核病是对奶牛群遗传和经济资源的重大威胁。由于奶牛的集约化饲养和高产,发病率和患病率较高。开发用于早期检测和识别健康动物的非破坏性诊断方法对于育种计划至关重要。传统方法几乎完全是破坏性的,精度低,缺乏精度,而且很耗时。近红外光谱(NIRS)和水光子组学可以检测生物流体的变化,因此具有诊断疾病的潜力。本研究旨在探讨NIRS和水光子组学对奶牛副结核的诊断能力。
■两组产牛前60天和产牛后100天至200天收集NIR范围(1,300nm至1,600nm)的奶牛血浆,积极和消极,使用相同的连续酶联免疫吸附试验3次结果作为参考试验。
■NIRS和aquaphotomics方法具有100%的准确性,灵敏度,和特异性,使用无监督方法进行数据挖掘来检测副结核病,主成分分析,和监督方法:类类比的软独立建模,线性判别分析,二次判别分析,偏最小二乘判别分析,和支持向量机模型。
■当前的研究发现,用近红外光谱监测血浆提供了一个机会,可以通过复杂的生理变化引起的水光谱模式的变化间接分析抗体水平,例如aquram与副结核病相关的抗体量。
UNASSIGNED: As a contagious and chronic disease in the livestock industry, Paratuberculosis is a significant threat to dairy herds\' genetic and economic resources. Due to intensive breeding and high production of dairy cattle, the incidence and prevalence are higher. Developing non-destructive diagnostic methods for the early detection and identification of healthy animals is paramount for breeding programs. Conventional methods are almost entirely destructive, have low accuracy, lack precision, and are time-consuming. Near-infrared spectroscopy (NIRS) and aquaphotomics can detect changes in biofluids and thus have the potential to diagnose disease. This study aimed to investigate the diagnostic ability of NIRS and aquaphotomics for Paratuberculosis in dairy cattle.
UNASSIGNED: Blood plasma from dairy cattle was collected in the NIR range (1,300 nm to 1,600 nm) 60 days before and 100 days to 200 days after calving in two groups, positive and negative, using the same consecutive enzyme-linked immunosorbent assay test results three times as a reference test.
UNASSIGNED: NIRS and aquaphotomics methods invite 100% accuracy, sensitivity, and specificity to detect Paratuberculosis using data mining by unsupervised method, Principal Component Analysis, and supervised methods: Soft Independent Modeling of Class Analogiest, Linear Discriminant Analysis, Quadratic Discriminant Analysis, Partial Least Square-Discriminant Analysis, and Support Vector Machine models.
UNASSIGNED: The current study found that monitoring blood plasma with NIR spectra provides an opportunity to analyze antibody levels indirectly via changes in water spectral patterns caused by complex physiological changes, such as the amount of antibodies related to Paratuberculosis by aquagram.