Electrophoretic comparison of myosin light chains and parvalbumins of trunk and head muscles from two barbel (Barbus barbus) populations

peer reviewed1. Myosin light chains and parvalbumins have been compared in several trunk and head muscles from small and large size barbels (Barbus barus) living in river or reared in hatchery. 2. These proteins isolated from white, red and ventricles fibres exhibit identical electrophoretic characteristics in the four batches. 3.The slow fibre content and the parvalbumin distribution are generally similar in river and hatchery barbels of the same size but differ between small and large barbels within a population. 4. Alterations of the mode of fertilization and breeding conditions do not modify the differentiation of myosin and parvalbumins in barbel