title: On the polymorphism of the acid phosphatase in bull's and ram's semenal plasma.
mesh_terms: D000135:Acid Phosphatase / Q000032:analysis*; D000818:Animals; D002417:Cattle; D004592:Electrophoresis, Starch Gel; D007527:Isoenzymes / Q000032:analysis*; D008297:Male; D011110:Polymorphism, Genetic; D012661:Semen / Q000201:enzymology*; D012756:Sheep
chemical_list: D007527:Isoenzymes; D000135:Acid Phosphatase