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.
 
Subject veterinay study subclinical mastitis; mastitis diagnosis; cow side tests
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
 
Contributor USAID Rwanda Dairy Competitiveness Program II and University of Namibia
Date 2017-06-21
 
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — —
Format text/html application/epub+zip text/xml application/pdf
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
 
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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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Rights Copyright (c) 2017 Blaise Iraguha, Humphrey Hamudikuwanda, Borden Mushonga, Erick Kandiwa, Jean P. Mpatswenumugabo https://creativecommons.org/licenses/by/4.0
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