Evaluation of the California Mastitis Test to Determine Udder Health Status of Early Lactation Dairy Cows

dc.contributor.author Dingwell, Randy
dc.contributor.author Leslie, Ken
dc.contributor.author Timms, Leo
dc.contributor.author Schukken, Ynte
dc.contributor.author Sargent, Jan
dc.date 2018-08-25T21:03:56.000
dc.date.accessioned 2020-06-29T23:28:52Z
dc.date.available 2020-06-29T23:28:52Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 2004
dc.date.issued 2004-01-01
dc.description.abstract <p>Quarter milk bacteriology results of samples collected within the first week of calving were used to calculate the test characteristics of the California Mastitis Test (CMT) that estimate the udder health status of fresh dairy cows. Over 1,200 quarters were both cultured and had a CMT performed. The overall sensitivity and specificity of the CMT was 68.8% and 71.5%, respectively. Using a cutpoint of any CMT reaction as a positive test, and examining the results by various days in milk, the highest sensitivity and specificity occurred at day four (82.4% and 80.6%, respectively). The CMT has the potential to be useful tool for monitoring udder health in fresh cows.</p>
dc.identifier archive/lib.dr.iastate.edu/ans_air/vol650/iss1/72/
dc.identifier.articleid 1072
dc.identifier.contextkey 3310963
dc.identifier.doi https://doi.org/10.31274/ans_air-180814-53
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ans_air/vol650/iss1/72
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/8168
dc.language.iso en
dc.relation.ispartofseries Animal Science Research Reports
dc.relation.ispartofseries ASL R1913
dc.source.bitstream archive/lib.dr.iastate.edu/ans_air/vol650/iss1/72/AS1913.pdf|||Sat Jan 15 01:43:40 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Animal Sciences
dc.subject.disciplines Dairy Science
dc.subject.keywords ASL R1913
dc.title Evaluation of the California Mastitis Test to Determine Udder Health Status of Early Lactation Dairy Cows
dc.type article
dc.type.genre dairy
dspace.entity.type Publication
relation.isJournalIssueOfPublication 3f2790ae-9c11-4703-87e0-39b318362bbc
relation.isSeriesOfPublication 7f3839b7-b833-4418-a6fa-adda2b23950a
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