TY - JOUR AU - Cisneros-Tamayo, M. AU - Kempf, I. AU - Coton, J. AU - Michel, V. AU - Bougeard, S. AU - de Boisséson, C. AU - Lucas, P. AU - Bäyon-Auboyer, M.-H. AU - Chiron, G. AU - Mindus, C. AU - Gautier-Bouchardon, A. V. PY - 2020 DA - 2020/08/05 TI - Investigation on eggshell apex abnormality (EAA) syndrome in France: isolation of Mycoplasma synoviae is frequently associated with Mycoplasma pullorum JO - BMC Veterinary Research SP - 271 VL - 16 IS - 1 AB - Mycoplasma synoviae (MS) is known to cause Eggshell Apex Abnormality (EAA) syndrome characterized by an altered shell surface with increased translucency on the apex. However, no large-scale studies have been conducted to obtain prevalence data of EAA and MS isolates associated to this syndrome. This manuscript reports the results of two field studies performed in the French poultry industry (2015–2017): focusing mainly on investigation of presence and prevalence of EAA in different types of laying hen flocks (phase 1), and isolation of MS strains from EAA-infected flocks (phase 2). SN - 1746-6148 UR - https://doi.org/10.1186/s12917-020-02487-0 DO - 10.1186/s12917-020-02487-0 ID - Cisneros-Tamayo2020 ER -