Figure 4. Micrograph of trachea sub epithelial showed congestion of the vasculature, edema and presence of plasma and macrophage cells

From

Action Mechanism and Immunity Status of Broiler Chickens after Spray and Drinking Water Administration of Kanne-Brottrunk®

Raheel I.A., Orabi A., Saber El-Hanbaly, Hassan Shaheen

Journal of Applied & Environmental Microbiology. 2018, 6(3), 59-66 doi:10.12691/jaem-6-3-1