Fig. 4

Antibiotic exposure alters myofiber characteristics and types composition in longissimus muscle of piglets. a. Histological images of muscle obtained from H&E staining with no apparent difference in myofiber size between groups. b-d. Myofiber diameter, cross-sectional area and density. e-h. Myosin heavy chain isoforms expression in muscle. MYH, myosin heavy chain. *Pā<ā0.05, ** Pā<ā0.01. nĀ =ā9 for each group