Fig. 1

Quantification of satellite cells proliferation in hyperplasic and non-hyperplasic muscle of trout (a) Muscle cross sections stained with anti-laminin (red) and anti-BrdU (green) in trout of 2 g, 500 g and of 3-weeks fasted trout (5 g). Nuclei were counter-stained with DAPI (blue) (scale bar = 20 μm). b Quantification of BrdU positive nuclei (% ± SD) in satellite cells position, (under the basal lamina), in white muscle of trout weighing 2 g, 500 g and of 3-weeks fasted trout weighing 5 g. Different letters indicate a significant difference between means (Kruskal-Wallis and Dunn’s multiple comparisons test; p-value ≤0.05; n = 5)