Figure 1

Influence of the chicken line on HVT load in feathers. Each HVT load corresponds to the log₁₀ of HVT genomes number per million cells. Data are shown in Tukey boxes with the medians shown as thick horizontal bars. A HVT load per line regardless of the time. The medians (log) are indicated above each box. HVT loads were of moderate level in the four lines and not significantly different; B HVT load per line over time. He and Fa showed significant differences of HVT loads in feathers over time, whereas Nu and pH did not.