Evaluation of viral infection levels in intensive and organic poultry farming


	Graphical representation of the Avian Influenza samples and positive results in conventional systems, free-range and backyard farming and in wild birds between 2012 and 2020.

Part of: Kirov PM, Alexandrova RI (2022) Evaluation of viral infection levels in intensive and organic poultry farming. In: Chankova S, Peneva V, Metcheva R, Beltcheva M, Vassilev K, Radeva G, Danova K (Eds) Current trends of ecology. BioRisk 17: 287-296. https://doi.org/10.3897/biorisk.17.77398