Bone stability in response to UVB exposure and dietary vitamin D₃.

Data in represent mean ± SD (n = 9) of tibiotarsus stability of non-treated (-UVB) or UVB-treated (+UVB) hens that were fed either a vitamin D₃-deficient (-D₃) or vitamin D₃-adequate diet (+D₃), respectively. Data were analyzed by two-way ANOVA. Classification factors were UVB exposure, vitamin D₃ in the diet, and the interaction between both factors. Effect of vitamin D₃: p<0.10, vitamin D₃× UVB: p<0.01. Individual means between two groups were compared by the unpaired Student’s t-test, **p<0.01.