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Fig. 4 | BMC Veterinary Research

Fig. 4

From: Quantification of IgY to Erysipelothrix rhusiopathiae in serum from Swedish laying hens

Fig. 4

Correlation between titers to the clade 2 “vaccine related” ER antigen (x-axis) and titers to the “intermediate” ER antigen (y-axis) in individual sera for all tested samples and samples from the indicated laying hen flocks, respectively. Flock 20 and 28 were housed in furnished cages, flocks 2, 7, 8 and 9 were housed in barn production (barn) and flocks 3, 4, 5, 1 and 32 were housed in organic production with outdoor access (organic). Flocks 1 and 32 were from farms that had previous outbreaks of erysipelas (outbreak) and flock 32 was also vaccinated against erysipelas (vacc), all other tested flocks were from farms with no previous outbreaks of erysipelas. Data is shown as individual values for all tested hens (All flocks), n = 118, or as individual values for hens in indicated flocks with 10 ≥ n ≤ 8 for each flock. Trend lines were calculated using the curve fit linear mode in the software KaleidaGraph, version 4.1.0 (Synergy Software) and equations and R-values are shown in each panel

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