Département de sciences cliniques, Faculté de médecine vétérinaire, CP 5000, Université de Montréal, Saint-Hyacinthe, Québec, J2S 7C6, Canada.
J Dairy Sci. 2013 Jul;96(7):4505-7. doi: 10.3168/jds.2012-6321. Epub 2013 Apr 28.
The objective of this cross-sectional study was to validate the accuracy of a hand-held electronic on-farm test (Precision Xtra) for quantifying the blood β-hydroxybutyrate (BHBA) concentration in dairy goats. A total of 114 dairy goats from 3 commercial herds were sampled once for blood in the jugular vein between 1mo before and 2mo after parturition. Blood samples were centrifuged to harvest serum and sera were sent to the Animal Health Laboratory of the Université de Montréal for quantification of BHBA concentration (gold standard). Laboratory BHBA values were between 0.1 and 3.7mmol/L. Precision Xtra values were compared with gold standard values; Pearson correlation coefficient was 0.98 and coefficient of determination was 0.95. Overall, these results suggested that Precision Xtra provides excellent accuracy for measuring blood BHBA concentration in dairy goats compared with the gold standard test.
本横断面研究的目的是验证一种手持式电子场测试（Precision Xtra）用于定量奶牛山羊血液β-羟丁酸（BHBA）浓度的准确性。从 3 个商业牧场中抽取了 114 只产后期前 1 个月到后 2 个月之间的颈静脉血进行了一次采样。将血液离心以收获血清，并将血清送至蒙特利尔大学动物健康实验室定量 BHBA 浓度（金标准）。实验室 BHBA 值在 0.1 至 3.7mmol/L 之间。Precision Xtra 值与金标准值进行了比较；Pearson 相关系数为 0.98，决定系数为 0.95。总体而言，这些结果表明，与金标准测试相比，Precision Xtra 可在奶牛山羊血液 BHBA 浓度测量方面提供极好的准确性。
