Histochemical fiber types in 16 heavy-lamb skeletal muscles

• DOI: 10.1016/j.smallrumres.2015.02.006
• Publication Date: 2015-02-19T15:04:26Z
• Authors: Javier Ithurralde; Gianni Bianchi; Oscar Feed; Fernando Nan; Gustavo Garibotto; Alejandro Bielli
• Keywords: Longissimus Thoracis; Fiber type; Muscle fibre; Fibre type; Skeletal Muscle Fibers

Abstract In order to histochemically describe contractile and metabolic fiber types in 16 heavy-lamb muscles, samples were taken from nine cross-bred heavy lambs. Relevant intermuscular differences were detected regarding fiber typing. Muscle Longissimus lumborum showed larger type II fibers than muscle Longissimus thoracis ( P Triceps brachii caput longum and caput laterale differed in their contractile and metabolic characteristics ( P Gluteobiceps , Supraspinatus and Infraspinatus , and Vastus lateralis and Rectus femoris ( P