IDENTIFICATION OF DECORIN AND CHONDROITIN SULFATE PROTEOGLYCANS IN TURKEY SKELETAL-MUSCLE

Turkey pectoral muscles were examined at 15 through 25 d of embryonic age in order to delineate the developmental pattern of proteoglycan ex pression during skeletal muscle development. Glycosaminoglycan concent ration, decorin, and muscle chondroitin sulfate proteoglycan (M-CSPG) levels were measured at each developmental age. Glycosaminoglycan leve ls rose during the developmental period studied, whereas decorin and M -CSPG levels were initially high at Day 15 and then decreased. The res ults from this study demonstrate the presence of both decorin and M-CS PG during turkey skeletal muscle development.