Measuring hoof horn haemorrhage in heifers: A history.

dc.citation.volume306
dc.contributor.authorLaven R
dc.contributor.authorLaven L
dc.coverage.spatialEngland
dc.date.accessioned2024-07-15T21:11:48Z
dc.date.available2024-07-15T21:11:48Z
dc.date.issued2024-06-27
dc.description.abstractUnderstanding the aetiology and pathogenesis of claw-horn disease (CHD) is essential for developing prevention/treatment programmes. Haemorrhages in the hoof horn (i.e. white line/sole haemorrhages) are an important part of the pathogenesis of CHD, being precursors to and predictors of lesions such as white-line disease and sole ulcer. Understanding haemorrhage development can provide useful information about the aetiology and pathogenesis of CHD. The development of hoof horn haemorrhages is best studied in cattle without previous claw-horn damage, as previous history of damage can markedly alter the hoof's response to stressors. Since the early 1990s, many prospective studies of the risk factors associated with CHD have been undertaken in late pregnant and early lactation heifers, which have a low risk of having had CHD but which are exposed to the same risk factors as lactating cows. Those studies have used a range of methods to assess hoof horn haemorrhages, with the principal focus, particularly initially (but also more recently), being on measuring lesion severity. However, as the science developed it became clear that measuring lesion extent was also important and that combining severity and extent in a single measure was the best approach to assess hoof horn haemorrhages. Studies of hoof horn haemorrhage in heifers have significantly increased our understanding of CHD, demonstrating the importance of housing and the relative lack of importance of post-calving nutrition. Most importantly, they have shown the importance of parturition as a risk factor for CHD, and how parturition interacts with other risk factors to accentuate their effect. The use of such studies has decreased in recent years, despite recent research showing that we still have much to learn from prospective studies of hoof horn haemorrhages in heifers.
dc.description.confidentialfalse
dc.edition.editionAugust 2024
dc.format.pagination106183-
dc.identifier.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/38897376
dc.identifier.citationLaven R, Laven L. (2024). Measuring hoof horn haemorrhage in heifers: A history.. Vet J. 306. (pp. 106183-).
dc.identifier.doi10.1016/j.tvjl.2024.106183
dc.identifier.eissn1532-2971
dc.identifier.elements-typejournal-article
dc.identifier.issn1090-0233
dc.identifier.number106183
dc.identifier.piiS1090-0233(24)00122-9
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/70185
dc.languageeng
dc.publisherElsevier B.V.
dc.publisher.urihttps://www.sciencedirect.com/science/article/pii/S1090023324001229
dc.relation.isPartOfVet J
dc.rights(c) 2024 The Author/s
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectClaw-horn disease
dc.subjectDairy cattle
dc.subjectHaemorrhage score
dc.subjectHousing
dc.subjectParturition
dc.titleMeasuring hoof horn haemorrhage in heifers: A history.
dc.typeJournal article
pubs.elements-id489448
pubs.organisational-groupCollege of Health
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