The marginal abatement cost of antimicrobials for dairy cow mastitis: A bioeconomic optimization perspective

Ferchiou Ahmed, Ndiaye Youba, Mandour Mostafa, Herman Nicolas, Lhermie Guillaume, Raboisson Didier. 2023. The marginal abatement cost of antimicrobials for dairy cow mastitis: A bioeconomic optimization perspective. Veterinary Sciences, 10 (2), n.spéc. One Health Challenges and Opportunities - Animals, Humans and Their Interconnected Ecosystems:92, 16 p.

Url - autres données associées : https://www.mdpi.com/article/10.3390/vetsci10020092/s1

Résumé : Maintaining udder health is the primary indication for antimicrobial use (AMU) in dairy production, and modulating this application is a key factor in decreasing AMU. Defining the optimal AMU and the associated practical rules is challenging since AMU interacts with many parameters. To define the trade-offs between decreased AMU, labor and economic performance, the bioeconomic stochastic simulation model DairyHealthSim (DHS)© was applied to dairy cow mastitis management and coupled to a mean variance optimization model and marginal abatement cost curve (MACC) analysis. The scenarios included three antimicrobial (AM) treatment strategies at dry-off, five types of general barn hygiene practices, five milking practices focused on parlor hygiene levels and three milk withdrawal strategies. The first part of economic results showed similar economic performances for the blanked dry-off strategy and selective strategy but demonstrated the trade-off between AMU reduction and farmers' workload. The second part of the results demonstrated the optimal value of the animal level of exposure to AM (ALEA). The MACC analysis showed that reducing ALEA below 1.5 was associated with a EUR 10,000 loss per unit of ALEA on average for the farmer. The results call for more integrative farm decision processes and bioeconomic reasoning to prompt efficient public interventions.

Mots-clés Agrovoc : mammite, mammite bovine, vache laitière, antimicrobien, bioéconomie (modèl), coût marginal, contrôle de maladies, modèle bioéconomique

Mots-clés libres : Dairy cow, Economics, Mastitis, Antimicrobial use, Farmer practices

Auteurs et affiliations

• Ferchiou Ahmed, CIRAD-BIOS-UMR ASTRE (FRA) ORCID: 0000-0001-6250-1431 - auteur correspondant
• Ndiaye Youba, Université de Montpellier (FRA)
• Mandour Mostafa, CIRAD-BIOS-UMR ASTRE (FRA)
• Herman Nicolas, Université de Toulouse (FRA)
• Lhermie Guillaume, CIRAD-BIOS-UMR ASTRE (FRA)
• Raboisson Didier, CIRAD-BIOS-UMR ASTRE (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/610879/)

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