Fig. 5

Visualization comparison of bvSP prevalence between Shandong and Guangdong provinces. A, B The prevalence rates of bvSP in Shandong and Guangdong. C The meta-analysis for the prevalence of bvSP in Shandong and Guangdong. D-G The prevalence of bvSP by breed, farm mode, gender or economic usage. H, I The prevalence by growth stage of broilers and layers. J The change trend of the positive rates for Shandong and Guangdong in different years