Association of lameness and mastitis with return-to-service oestrus detection in the dairy cow

Remnant, John; Green, Martin J.; Huxley, Jon; Roberts, George; Jones, Rhys; Hirst-Beecham, James; Hudson, Chris David

Abstract

© British Veterinary Association 2019. No commercial re-use. See rights and permissions. Published by BMJ. Oestrus detection is an important part of maintaining efficient reproductive performance in dairy herds. Both lameness and mastitis are common diseases of dairy cows that may impact oestrus detection. A set of data from 28 herds identified as having good recording of clinical mastitis and lameness incidents was used for the study. Logistic regression was used to identify associations between disease episodes within 100 days of insemination and changes in the probability of reinsemination at either 18-24 or 19-26 days after an unsuccessful insemination. Population attributable risk was calculated to understand the impact these diseases may have at a herd level. Lameness 0-28 days after the first insemination of the interval decreased the odds of a reinsemination at an appropriate time by approximately 20 per cent. Clinical mastitis 1-28 days prior to the first insemination of the interval increased the odds of reinsemination at the expected time by approximately 20 per cent. The associations were similar for either interservice interval outcome. Population attributable risk suggested that the effect of these diseases on the probability of reinsemination at the expected time at a population level would likely be extremely small.

Citation

Remnant, J., Green, M. J., Huxley, J., Roberts, G., Jones, R., Hirst-Beecham, J., & Hudson, C. D. (2019). Association of lameness and mastitis with return-to-service oestrus detection in the dairy cow. Veterinary Record, 185(14), 442. https://doi.org/10.1136/vr.105535

• Journal Article Type: Article
• Acceptance Date: Aug 11, 2019
• Online Publication Date: Aug 20, 2019
• Publication Date: Oct 12, 2019
• Deposit Date: Aug 23, 2019
• Publicly Available Date: Aug 23, 2019
• Journal: Veterinary Record
• Print ISSN: 0042-4900
• Electronic ISSN: 2042-7670
• Publisher: BMJ Publishing Group
• Peer Reviewed: Peer Reviewed
• Volume: 185
• Issue: 14
• Pages: 442
• DOI: https://doi.org/10.1136/vr.105535
• Keywords: General Veterinary; General Medicine
• Public URL: https://nottingham-repository.worktribe.com/output/2469397
• Publisher URL: https://veterinaryrecord.bmj.com/content/early/2019/08/20/vr.105535