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dc.contributor.authorOlmos, G.*
dc.contributor.authorBoyle, Laura*
dc.contributor.authorHoran, Brendan*
dc.contributor.authorBerry, Donagh P.*
dc.contributor.authorO'Connor, P.*
dc.contributor.authorMee, John F*
dc.contributor.authorHanlon, A.*
dc.date.accessioned2013-03-26T12:32:42Z
dc.date.available2013-03-26T12:32:42Z
dc.date.issued2009-01
dc.identifier.citationG. Olmos, L. Boyle, B. Horan, D. P. Berry, P. O’Connor, J. F. Mee and A. Hanlon (2009). Effect of genetic group and feed system on locomotion score, clinical lameness and hoof disorders of pasture-based Holstein–Friesian cows. animal, 3, pp 96-107. doi:10.1017/S1751731108003248.en_GB
dc.identifier.issn1751-732X
dc.identifier.urihttp://hdl.handle.net/11019/357
dc.descriptionpeer-revieweden_GB
dc.description.abstractThe aim of the present study was to determine the effect of the genetic group of the Holstein–Friesian (HF) and pasture-based feeding system (3 × 2 factorial arrangement) on locomotion score (six gait aspects scored from one to five), clinical lameness and hoof disorders within a seasonal calving milk production system. The three genetic groups compared had an average Economic Breeding Index (EBI) value of 40, 70 and 80: representing the Irish national average genetic merit (LOW-NA), high EBI genetic merit of North American ancestry (HIGH-NA) and high EBI genetic merit of New Zealand ancestry (HIGH-NZ), respectively. Two feed systems were compared: a high grass allowance, low-concentrate system typical of spring-calving herds in Ireland (control) and a high-concentrate system. Data from 126 cows collected across a complete lactation period were analysed using generalised estimating equations and survival analysis. Genetic group of HF had a significant effect on locomotion score, clinical lameness and hoof disorders. Higher EBI cows (HIGH-NA and HIGH-NZ) had lower hazard of poor locomotion score in some gait aspects (e.g. spine curvature) and lower odds of clinical lameness in the first 200 days post-calving (Odds ratios 0.08 and 0.24, respectively, relative to the LOW-NA) and some hoof disorders (e.g. traumatic lesions) compared with LOW-NA cows. The high-concentrate feed system showed a higher incidence and severity of digital dermatitis (P < 0.01). Thus, high EBI cows have better locomotion, fewer cases of clinical lameness and less-severe hoof disorders (i.e. digital dermatitis, white line disease and traumatic lesions) than low EBI cows. These findings have important implications for cow welfare and productivity.en_GB
dc.language.isoenen_GB
dc.publisherCambridge University Pressen_GB
dc.relation.ispartofseriesAnimal;vol 3
dc.subjectHolstein–Friesianen_GB
dc.subjectGenetic groupen_GB
dc.subjectFeed systemen_GB
dc.subjectLamenessen_GB
dc.subjectHoof disordersen_GB
dc.titleEffect of genetic group and feed system on locomotion score, clinical lameness and hoof disorders of pasture-based Holstein–Friesian cowsen_GB
dc.typeArticleen_GB
dc.identifier.rmisMKAB-0201-5502
dc.identifier.doihttp://dx.doi.org/10.1017/S1751731108003248
refterms.dateFOA2018-01-12T07:49:06Z


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