Assessment of the prevalence of Subclinical Mastitis through two on-farm tests in dual-purpose livestock system of Colombian Orinoquia
| Autor: | Arcesio Salamanca-Carreño, Mauricio Vélez-Terranova, Rita Tamasaukas, Raúl Jáuregui-Jiménez, Pere M. Parés-Casanova, José N. Arias-Landazábal |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Journal of Applied Animal Research, Vol 51, Iss 1, Pp 599-607 (2023) |
| Druh dokumentu: | article |
| ISSN: | 09712119 0974-1844 0971-2119 |
| DOI: | 10.1080/09712119.2023.2256829 |
| Popis: | 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 dual-purpose 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 |
| Databáze: | Directory of Open Access Journals |
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