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Research ArticleOpen accessIn the abstractEfficacy of Tylosin Tartrate on Mycoplasma Infections and Eggshell Apex Abnormalities in Layer Hens Under Field ConditionsKonstantinos C. Koutoulis, George Kefalas, Niki Mouttotou et al.The aim of this report was to describe a clinical case of concurrent infection with Mycoplasma Gallisepticum (MG) and Mycoplasma Synoviae (MS) in layers, complicated with Escherichia coli and Pasteurella multocida, as well as to evaluate the efficacy of tylosin tartrate treatment (Pharmasin® 100% WSG, Huvepharma) on Mycoplasma under field conditions. A flock of 18,500 ISA Brown pullets, 21 weeks … …American Journal of Animal and Veterinary Sciences, Vol. 8, Issue 4 · 20 Dec 2013 · 8,732 accessesView PDFCite