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Antimicrobial use in organic and conventional dairy herds

Published online by Cambridge University Press:  05 May 2020

M. A. Krogh Open the ORCID record for M. A. Krogh [Opens in a new window] ,
C. L. Nielsen  and
J. T. Sørensen Open the ORCID record for J. T. Sørensen [Opens in a new window]
M. A. Krogh*
Affiliation:
Department of Animal Science, Aarhus University, DK-8830Tjele, Denmark
C. L. Nielsen
Affiliation:
Department of Animal Science, Aarhus University, DK-8830Tjele, Denmark
J. T. Sørensen
Affiliation:
Department of Animal Science, Aarhus University, DK-8830Tjele, Denmark
*
†E-mail: mogenskrogh@anis.au.dk
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Abstract

Use of antimicrobials for food-producing animals is a major public concern due to the risk of antimicrobial resistance. Although dairy production has a relatively low usage of antimicrobials, the potential for further reduction should be explored. The objective of the study was to estimate the current differences in antimicrobial use in Danish organic and conventional dairy herds and to describe the differences between them. Based on data from three different sources, 2604 herds (306 organic and 2298 conventional) were identified for the study. These herds had been either organic or conventional for the entire period from 2015 to 2018. Antimicrobial use was calculated as the treatment incidence in Animal Daily Doses (ADDs)/100 animals/day for three age groups: adult cattle, young stock and calves. For adult cattle, the ratio of median treatment incidence between conventional and organic production ranged from 2.8 : 1 to 3.4 : 1, depending on the specific year. For cows, 25% of the organic herds had a higher treatment incidence than the 25% of conventional herds with the lowest treatment incidence. Antimicrobial use for young stock was low and at a similar level in both the organic and conventional production systems. For calves, the median treatment incidence was 1.2 times higher in conventional herds and 1.6 times higher for the 75th percentile. Analyses of treatment incidence in adult cattle showed an overall decrease from 2015 to 2018 in both organic and conventional herds. The decrease was greater for the conventional herds (0.12 ADD/100 animals/day) compared to the organic herds (0.04 ADD/100 animals/day) over the 4-year period. In addition, herd size was an important risk factor for treatment incidence in conventional herds, increasing by 0.07 ADD/100 animals/day per 100 cows, whereas herd size had a minor influence on the treatment incidence in organic herds. The results of this study demonstrate the large variation in antimicrobial use within both organic and conventional herds, suggesting that further reduction is possible. Furthermore, herd size appears to be a risk factor in conventional herds but not in organic herds – an aspect that should be studied in more detail.

Keywords

antibioticregisterherd levelAnimal Daily Doseproduction systems
Type
Research Article
Information
animal , Volume 14 , Issue 10 , October 2020 , pp. 2187 - 2193
Copyright
© The Author(s), 2020. Published by Cambridge University Press on behalf of The Animal Consortium

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References

Bennedsgaard, TW, Klaas, IC and Vaarst, M 2010. Reducing use of antimicrobials - Experiences from an intervention study in organic dairy herds in Denmark. Livestock Science 131, 183–192.CrossRefGoogle Scholar
ECC 1991. Organic production of agricultural products and indications referring thereto on agricultural products and foodstuffs. Council Regulation no 2092/91 of 24 June 1991. Retrieved on 12 March 2020 from https://eur-lex.europa.eu/legal-content/en/ALL/?uri=CELEX%3A31991R2092Google Scholar
Cuong, N, Padungtod, P, Thwaites, G and Carrique-Mas, JJA 2018. Antimicrobial usage in animal production: a review of the literature with a focus on low-and middle-income countries. Antibiotics 7, 75.CrossRefGoogle ScholarPubMed
DANMAP 2019. DANMAP 2018 - Use of antimicrobial agents and occurrence of antimicrobial resistance in bacteria from food animals, food and humans in Denmark. Retrieved on the 12 March 2020 from www.danmap.org/downloadsGoogle Scholar
Fischer, K, Sjöström, K, Stiernström, A and Emanuelson, U 2019. Dairy farmers’ perspectives on antibiotic use: A qualitative study. Journal of Dairy Science 102, 2724–2737.CrossRefGoogle ScholarPubMed
Firth, CL, Käsbohrer, A, Schleicher, C, Fuchs, K, Egger-Danner, C, Mayerhofer, M, Schobesberger, H, Köfer, J and Obritzhauser, W 2017. Antimicrobial consumption on Austrian dairy farms: an observational study of udder disease treatments based on veterinary medication records. PeerJ 5, e4072.Google ScholarPubMed
Gussmann, M, Græsbøll, K, Toft, N, Nielsen, SS, Farre, M, Kirkeby, C and Halasa, T 2018. Determinants of antimicrobial treatment for udder health in Danish dairy cattle herds. Journal of Dairy Science 101, 505–517.CrossRefGoogle ScholarPubMed
Hommerich, K, Ruddat, I, Hartmann, M, Werner, N, Käsbohrer, A and Kreienbrock, L 2019. Monitoring antibiotic usage in German dairy and beef cattle farms-a longitudinal analysis. Frontiers in Veterinary Science 6, 244.CrossRefGoogle ScholarPubMed
Jensen, VF, Jacobsen, E and Bager, F 2004. Veterinary antimicrobial-usage statistics based on standardized measures of dosage. Preventive Veterinary Medicine 64, 201–215.CrossRefGoogle Scholar
Krogh, MA, Forkman, B, Østergaard, S, Houe, H and Sørensen, JT 2018. Evaluation of systematic California Mastitis Tests and vaginal examinations as measures of antimicrobial use in dairy herds. The Veterinary Journal 240, 37–39.CrossRefGoogle ScholarPubMed
Kuipers, A, Koops, W and Wemmenhove, HJ 2016. Antibiotic use in dairy herds in the Netherlands from 2005 to 2012. Journal of Dairy Science 99, 1632–1648.CrossRefGoogle ScholarPubMed
Lam, TJGM, Jansen, J and Wessels, RJ 2017. The RESET Mindset Model applied on decreasing antibiotic usage in dairy cattle in the Netherlands. Irish Veterinary Journal 70, 5.CrossRefGoogle ScholarPubMed
Oliver, SP, Murinda, SE and Jayarao, BM 2011. Impact of antibiotic use in adult dairy cows on antimicrobial resistance of veterinary and human pathogens: a comprehensive review. Foodborne Pathogen and Disease 8, 337–355.CrossRefGoogle Scholar
Oudshoorn, FW and Lauridsen, K 2014. Facilitating grazing for organic dairy farms with expanding herd size. In Movements, (ed. Rahmann, G, International Society of Organic Agriculture Research, International Federation of Organic Agriculture Movements), pp. 183–186. Organic World Congress -‘Building Organic Bridges’, Istanbul, Turkey.Google Scholar
Pinheiro, J, Bates, D, DebRoy, S, Sarkar, D and R Core Team 2019. nlme: linear and nonlinear mixed effects models. R package version 3.1-141. Retrieved on 12 March 2020 from https://CRAN.R-project.org/package=nlmeGoogle Scholar
Poizat, A, Bonnet-Beaugrand, F, Rault, A, Fourichon, C and Bareille, N 2017. Antibiotic use by farmers to control mastitis as influenced by health advice and dairy farming systems. Preventive Veterinary Medicine 146, 61–72.CrossRefGoogle ScholarPubMed
Saini, V, McClure, JT, Léger, D, Dufour, S, Sheldon, AG, Scholl, DT and Barkema, HW 2012. Antimicrobial use on Canadian dairy farms. Journal of Dairy Science 95, 1209–1221.CrossRefGoogle ScholarPubMed
R Core Team 2018. R: a language and environment for statistical computing, Vienna, Austria.Google Scholar
van der Fels-Klerx, HJ, Puister-Jansen, LF, van Asselt, ED and Burgers, SLGE 2011. Farm factors associated with the use of antibiotics in pig production. Journal of Animal Science 89, 1922–1929.CrossRefGoogle ScholarPubMed
Vaarst, M, Paarup-Laursen, B, Houe, H, Fossing, C and Andersen, HJ 2002. Farmers’ choice of medical treatment of mastitis in Danish dairy herds based on qualitative research interviews. Journal of Dairy Science 85, 992–1001.CrossRefGoogle ScholarPubMed
Woolhouse, M, Ward, M, van Bunnik, B and Farrar, J 2015. Antimicrobial resistance in humans, livestock and the wider environment. Philosophical Transactions Royal Society B 370, 20140083.CrossRefGoogle ScholarPubMed
World Health Organization (WHO) 2019. Critically important antimicrobials for human medicine, 6th revision. WHO, Geneva, Switzerland.Google Scholar