Risk factors for antibiotics use and spread of Mycoplasma bovis in veal calves feedlots
Résumé
Context and objectives Mycoplasma bovis : Major pathogenic bacteria in respiratory complex in veal calves' feedlots Resistant to AB, rapid and wide diffusion within a lot, persistence in lung ! increase the risk of AB use Vaccination difficult : antigenic variation and young age How to control it before spreading ? 2 longitudinal studies in commercial calves' feedlots to assess propositions somewhat realistic linked with :-Proved oral infection* : facilitated by automatic milk delivery with shared nipple-Low nasal carrying and seropositivity at entry in feedlots** " Only a few contaminated calves at entry : reduced risk in small feedlots 2 09/07/2022 WBC 2022 MADRID, SPAIN UMR MYCOPLASMOSES DES RUMINANTS-ECOANTIBIO 1
Domaines
Sciences du Vivant [q-bio]Origine | Fichiers produits par l'(les) auteur(s) |
---|---|
Licence |
Origine | Fichiers produits par l'(les) auteur(s) |
---|---|
Licence |