期刊
JOURNAL OF APPLIED ANIMAL RESEARCH
卷 51, 期 1, 页码 599-607出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09712119.2023.2256829
关键词
Electric conductivity; health status; level prevalence; mammary gland; on-farm tests
This study assessed the prevalence of Subclinical Mastitis (SCM) in dual-purpose livestock systems in Arauca, Colombia, using on-farm diagnostic California Mastitis Test (CMT) and Electric Conductivity (EC) test. The results showed that both tests can be useful in determining the health status of the mammary gland.
The assessment of the prevalence of Subclinical Mastitis (SCM) in dairy farms is essential to evaluate the health status of mammary gland. The aim of the study was to assess the prevalence of SCM in dualpurpose livestock systems in Arauca, Colombia, through the analysis the values found on-farm diagnostic California Mastitis Test (CMT) and Electric Conductivity (EC) test. Milk samples were taken from the individual mammary quarters of 481 cows. The cow level prevalence, per affected individual mammary quarters prevalence and the mammary quarter level prevalence were determined according to the values obtained for each test using two methods of analysis. An ANOVA was performed to determine the difference between prevalences. Cohen's kappa coefficient was used for intertest agreement, and an analysis of sensitivity and specificity. The cow level prevalence was similar between the tests (CMT = 31.4%; EC = 29.7%). The quarter-level prevalence was lower with EC (11.4% vs 14.3%) ( p < 0.05). The agreement test between CMT (0) and EC ranged between 0.20 and 0.25. Despite the low agreement found between the tests, they can be useful in determining the health status of the mammary gland in the dual-purpose livestock systems of the Colombian Orinoquia.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据