Impact of adopting non-antibiotic dry-cow therapy on the performance and udder health of dairy cows
dc.contributor.author | Lavery, Anna | |
dc.contributor.author | Craig, Aimee-Louise | |
dc.contributor.author | Gordon, Alan Wesley | |
dc.contributor.author | Ferris, Conrad P. | |
dc.date.accessioned | 2022-06-14T13:26:46Z | |
dc.date.available | 2022-06-14T13:26:46Z | |
dc.date.issued | 2022-05-28 | |
dc.description | Publication history: Accepted - 12 April 2022; Published online - 18 May 2022 | en_US |
dc.description.abstract | Background On dairy farms, the prophylactic use of antibiotics at drying-off is being increasingly challenged. The objective of this study was to examine the effect of antibiotic dry-cow therapy (DCT) or non-antibiotic DCT on dairy cow performance and udder health. Methods Holstein cows (n = 285) with low risk of intramammary infection (<200,000 cells/ml) were assigned to one of two treatments, either antibiotic DCT (A + TS; antibiotic treatment in combination with internal and external teat sealants) or non-antibiotic DCT (TS; internal and external teat sealant only). Results There was no statistically significant (p > 0.05) difference between treatments for mean cow milk yield, composition or energy corrected milk yield. Mean somatic cell count was 0.16 loge higher in the TS treatment (95% confidence interval [CI]: −0.00 loge to −0.33 loge) compared to A + TS treatment (p = 0.047). A 50% increase in the number of mastitis cases was observed in the A + TS treatment compared to TS treatment (odds ratio = 1.5, 95% CI: 0.80%–3.01%), although this was not significant. There was no statistical evidence (p > 0.05) that treatment had any effect on colostrum quality and composition. Conclusion Results indicate that non-antibiotic DCT can be adopted in ‘low-risk’ cows who were offered grass silage-based diets in cubicle accommodation, with low risk of adverse effects on performance or udder health. | en_US |
dc.description.sponsorship | Department of Agriculture, Environment and Rural Affairs (DAERA) AgriSearch through the Research Challenge Fund (RCF) | en_US |
dc.identifier | http://hdl.handle.net/20.500.12518/452 | |
dc.identifier.citation | Lavery, A., Craig, A., Gordon, A.W. and Ferris, C.P. (2022) ‘Impact of adopting non‐antibiotic dry‐cow therapy on the performance and udder health of dairy cows’, Veterinary Record. Wiley. doi:10.1002/vetr.1731. | en_US |
dc.identifier.issn | 0042-4900 | |
dc.identifier.issn | 2042-7670 | |
dc.identifier.uri | https://doi.org/10.1002/vetr.1731 | |
dc.language.iso | en | en_US |
dc.publisher | Wiley | en_US |
dc.rights | © 2022 British Veterinary Association. This work is made available online in accordance with the publisher's policies. Please refer to any applicable terms of use of the publisher | en_US |
dc.title | Impact of adopting non-antibiotic dry-cow therapy on the performance and udder health of dairy cows | en_US |
dc.type | Article | en_US |
dcterms.dateAccepted | 2022-04-12 | |
dcterms.dateSubmitted | 2021-07-26 |
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