Comparison of cow-side diagnostic tests for subclinical mastitis of dairy cows in Musanze district, Rwanda
Journal of the South African Veterinary Association
Field | Value | |
Title | Comparison of cow-side diagnostic tests for subclinical mastitis of dairy cows in Musanze district, Rwanda | |
Creator | Iraguha, Blaise Hamudikuwanda, Humphrey Mushonga, Borden Kandiwa, Erick Mpatswenumugabo, Jean P. | |
Description | Four subclinical mastitis diagnostic tests (the UdderCheck® test [a lactate dehydrogenasebased test], the California Mastitis Test [CMT], the Draminski® test [a conductivity-based test] and the PortaSCC® test [a portable somatic cell count-based test]) were compared in a study comprising crossbreed dairy cows (n = 30) during September and October 2015. Sensitivity and specificity of the CMT, Draminski® and UdderCheck® tests were compared with the PortaSCC® as reference. The CMT, Draminski® and UdderCheck® test results were compared with the results of the PortaSCC® test using kappa statistics. Duplicate quarter milk samples (n = 120) were concurrently subjected to the four tests. Sensitivity and specificity were 88.46% and 86.17% (CMT), 78.5% and 81.4% (Draminski®) and 64.00% and 78.95% (UdderCheck®). The CMT showed substantial agreement (k = 0.66), the Draminski® test showed moderate agreement (k = 0.48) and the UdderCheck® test showed fair agreement (k = 0.37) with the PortaSCC® test and positive likelihood ratios were 6.40, 4.15 and 3.04, respectively. The cow-level subclinical mastitis prevalence was 70%, 60%, 60% and 56.7% for PortaSCC®, CMT, Draminski® and UdderCheck® tests, respectively. At udder quarter level, subclinical mastitis prevalence was 20%, 21.67% and 20.83% for PortaSCC®, CMT and UdderCheck®, respectively. A correlation (P 0.05) and moderate strength of association were found between the four tests used. The study showed that compared to the PortaSCC® test, the CMT was the most preferable option, followed by the Draminski® test, while the UdderCheck® test was the least preferable option for subclinical mastitis screening. | |
Publisher | AOSIS | |
Date | 2017-06-21 | |
Identifier | 10.4102/jsava.v88i0.1464 | |
Source | Journal of the South African Veterinary Association; Vol 88 (2017); 6 pages 2224-9435 1019-9128 | |
Language | eng | |
Relation |
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https://jsava.co.za/index.php/jsava/article/view/1464/1915
https://jsava.co.za/index.php/jsava/article/view/1464/1914
https://jsava.co.za/index.php/jsava/article/view/1464/1917
https://jsava.co.za/index.php/jsava/article/view/1464/1913
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