Repeatability of whole herd lameness scoring: an analysis of a New Zealand dataset

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dc.citation.volumeLatest Articles
dc.contributor.authorLaven RA
dc.contributor.authorMason WA
dc.contributor.authorLaven LJ
dc.contributor.authorMüller KR
dc.coverage.spatialEngland
dc.date.accessioned2024-11-04T19:32:42Z
dc.date.available2024-11-04T19:32:42Z
dc.date.issued2024-09-03
dc.description.abstractAIMS: To assess whether a whole-herd lameness score on a New Zealand dairy farm in spring could predict lameness prevalence on the same farm in summer (and vice versa) and whether a single-herd lameness score could be used to determine whether herd lameness prevalence was < 5% in both spring and summer. METHODS: Prevalence data (proportion of the herd with lameness score ≥ 2 and with score 3; 0-3 scale) from a study where 120 dairy farms across New Zealand were scored in spring and in the following summer were analysed using limits-of-agreement analysis. In addition, farms were categorised as having either acceptable welfare (lameness prevalence < 5% in both spring and summer) or not (lameness prevalence ≥ 5% in either spring or summer or both). The accuracy and specificity of a single, whole-herd lameness score at identifying herds with acceptable welfare were then calculated. RESULTS: The limits-of-agreement analysis suggests that 95% of the time, the prevalence of lameness in summer would be expected to be between 0.23 and 4.3 times that of the prevalence in spring. The specificity and accuracy of identifying a farm as acceptable on both occasions from a single observation were, respectively, 74% and 92% in spring, and 59% and 87% in summer. CONCLUSIONS: A single, one-off, whole-herd lameness score does not accurately predict future lameness prevalence. Similarly, acceptable status (lameness prevalence < 5%) in one season is not sufficiently specific to be used to predict welfare status in subsequent seasons. CLINICAL RELEVANCE: Whole-herd lameness scoring should be used principally as a means of detecting lame cows for treatment. A single whole-herd lameness score by an independent assessor should not be used to determine a herd's welfare status.
dc.description.confidentialfalse
dc.edition.edition2024
dc.format.pagination1-7
dc.identifier.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/39226912
dc.identifier.citationLaven RA, Mason WA, Laven LJ, Müller KR. (2024). Repeatability of whole herd lameness scoring: an analysis of a New Zealand dataset.. N Z Vet J. Latest Articles. (pp. 1-7).
dc.identifier.doi10.1080/00480169.2024.2394554
dc.identifier.eissn1176-0710
dc.identifier.elements-typejournal-article
dc.identifier.issn0048-0169
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/71903
dc.languageeng
dc.publisherTaylor and Francis Group
dc.publisher.urihttps://www.tandfonline.com/doi/full/10.1080/00480169.2024.2394554
dc.relation.isPartOfN Z Vet J
dc.rights(c) 2024 The Author/s
dc.rightsCC BY-NC-ND 4.0
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectLocomotion score
dc.subjectdairy cattle
dc.subjectlameness prevalence
dc.subjectpredictive ability
dc.subjectwelfare assessment
dc.titleRepeatability of whole herd lameness scoring: an analysis of a New Zealand dataset
dc.typeJournal article
pubs.elements-id491390
pubs.organisational-groupOther
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