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. 2010 Jan 20;187(3):310–319. doi: 10.1016/j.tvjl.2009.12.022

Fig. 4.

Fig. 4

Medians of spectral respiratory impedance within the frequency range of 3–15 Hz separated for respiratory impedance during inspiration (A) and respiratory impedance during expiration (B) of pigs exposed to PRRSV (n = 8) and controls (n = 8) 12 dpi. Rrs, respiratory resistance; Xrs, respiratory reactance, both during expiration (Rrs,ex, Xrs,ex, respectively) and inspiration (Rrs,in, Xrs,in, respectively). # Indicates significant differences between PRRSV challenged pigs and controls (W-test, P ⩽ 0.05).