Histomorphometry of muscle fibers in breast fillets of broilers with wooden breast myopathy

Wooden breast myopathy (WB) strongly affects the poultry industry mainly in terms of consumers rejection and economical loses, due to morphological changes broiler muscle tissue consequently low meat quality. The aim this study is evaluate histomorphometry fibers fillets broilers with severity levels WB myopathy. histological evaluation considered 30 samples pectoralis major level (ten normal fillets, ten moderate severe fillets). Fillets a present average fiber number, high diameter, percentage diameter less than 20 µm, between 40 70 µm. Fiber cross-sectional area greater affected by WB. Thus, damage structure contribute more severely degenerative processes meat.