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Histological structure of bursa of Fabricius at day 14 (A) and day 28 (B) of age of layer-type chicks exposed to fasting (control, T1) or early feeding on a layer starter diet (T2), a layer starter diet contained 3% molasses (T3), and a broiler starter diet (T4) during the first 72 h post-hatching. C, cortex; M, medulla; E, epithelium; P, Pelicae; F, follicle; SM, submucosa; ML, muscle layer; S, serosa. (H & E ×40).
