Figure 4From: Quantitative analysis of waterfowl parvoviruses in geese and Muscovy ducks by real-time polymerase chain reaction: correlation between age, clinical symptoms and DNA copy number of waterfowl parvovirusesCorrelation between age of birds and DNA copy number in liver (A) and heart (B) of examined birds. The copy number values were expressed as log10 per 1 g and were plotted as the y-axis while age of birds in weeks was presented on the x-axis. Rs - rank Spearman's correlation coefficient. H0 - null hypothesis (no correlation between age of birds and DNA copy number), H1 - alternative hypothesis (significant correlation between two examined data sets).Back to article page