Avril 2026 : Découvrez une publication scientifique dans le cadre du PHC Maghreb

31 mars 2026

Voici un article scientifique du projet 24MAG01 porté par BOUCHARDON Anne (France), NASSIK Saâdia (Maroc), GDOURA Radhouane (Tunisie) sur la Résistance des mycoplasmes aviaires aux antibiotiques en Tunisie et au Maroc : état des lieux, étude des mécanismes de résistance et mise au point de tests de diagnostic rapides.

First molecular investigation to detect avian Mycoplasma species in clinical samples from laying-hen farms in Tunisia

Abstract - Background Avian mycoplasmas are known pathogens, which cause severe economic losses in poultry flocks. PCR is a rapid, sensitive, and less expensive diagnostic tool than culture for the identification of mycoplasmas in poultry farms. The objective of this study was to determine by PCR the presence of Mycoplasma spp., Mycoplasma gallisep-ticum (MG), Mycoplasma synoviae (MS), and Mycoplasma pullorum (MP) in laying hens located in the Sfax region, in the South of Tunisia. - Results A total of 781 tracheal swabs were collected from 13 laying-hen farms without clinical signs at the date of sampling. MP was detected by a newly described specific PCR assay. The prevalence calculated from PCR results at the flock level was 100% for Mycoplasma spp., 0% for MG, 84.6% for MS and 61.5% for MP. The overall prevalence at the animal level was 38.7% for Mycoplasma spp., 0% for MG, 25% for MS and 6.4% for MP. The overall prevalence of 100% of avian mycoplasmas in laying-hen farms (38.7% prevalence at the animal level) shows an alarming situation. - Conclusions These results underline the importance of monitoring the emergence and spread of Mycoplasma strains in farms in order to decrease economic losses due to mycoplasmoses. - Keywords Mycoplasma gallisepticum, Mycoplasma synoviae, Mycoplasma pullorum, PCR, Hen