The effects of liveweight loss and milk production on the risk of lameness in a seasonally calving, pasture fed dairy herd in New Zealand

Alawneh, J. I., Stevenson, M., Williamson, N., Lopez-Villalobos, N. and Otely, T. (2014) The effects of liveweight loss and milk production on the risk of lameness in a seasonally calving, pasture fed dairy herd in New Zealand. Preventive Veterinary Medicine, 2013 . doi:10.1016/j.prevetmed.2013.10.010


Author Alawneh, J. I.
Stevenson, M.
Williamson, N.
Lopez-Villalobos, N.
Otely, T.
Title The effects of liveweight loss and milk production on the risk of lameness in a seasonally calving, pasture fed dairy herd in New Zealand
Journal name Preventive Veterinary Medicine   Check publisher's open access policy
ISSN 0167-5877
1873-1716
Publication date 2014-01-01
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.prevetmed.2013.10.010
Volume 2013
Total pages 8
Place of publication Amsterdam, The Netherlands
Publisher Elsevier BV
Language eng
Formatted abstract
Dairy herd managers have attempted to increase and maintain profits by selectively breed-ing dairy cattle for high production. Selection for milk production may have resulted in atendency for greater liveweight (LW) loss postpartum. This study aimed to: (1) determineif excessive LW loss and milk yield in the first 50 days in milk (DIM) was associated with thedevelopment of lameness after 50 DIM, and (2) estimate the incidence risk of lameness inthis herd attributable to excessive liveweight loss. The dataset comprised details from 564mixed age cows from a single, seasonally calving, pasture fed dairy herd in New Zealand.After adjusting for the confounding effects of parity, LW at calving, breed, the presenceof specified disease events in the first 50 DIM and milk yield, LW loss in the first 50 DIMincreased the risk of lameness after 50 DIM by a factor of 1.80 (95% CI 1.00–3.17). The riskof lameness was greatest for high yielding cows that lost excessive LW (risk ratio 4.36, 95%CI 4.21–8.19), but the effect LW loss on lameness risk at the herd level was relatively small.Based on data accumulated during the study we estimate that for this herd, there wouldbe a 3% (95% CI 1–6%) reduction in the incidence risk of lameness if excessive LW loss wasprevented. Twenty three percent of the incidence of lameness in this herd was attributableto excessive LW loss.We conclude that policies and interventions to reduce the rate and amount of LW loss inthe first 50 DIM will have a non-negligible impact on the incidence risk of lameness in thisherd.
Keyword Lameness
Liveweight
Population attributable fraction
Cattle
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes Published online 20/10/2013

Document type: Journal Article
Sub-type: Article (original research)
Collections: Non HERDC
School of Veterinary Science Publications
 
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Created: Wed, 13 Nov 2013, 00:05:39 EST by John Al-alawneh on behalf of School of Veterinary Science