title: Zona pellucida composition: species cross reactivity and contraceptive potential of antiserum to a purified pig zona antigen (PPZA).
mesh_terms: D000818:Animals; D000941:Antigens / Q000302:isolation & purification; D003270:Contraceptive Agents; D003429:Cross Reactions; D005260:Female; D006801:Humans; D007106:Immune Sera / Q000494:pharmacology*; D066298:In Vitro Techniques; D008297:Male; D051379:Mice; D010063:Ovum / Q000276:immunology*; D011817:Rabbits; D051381:Rats; D012453:Saimiri; D013045:Species Specificity; D013094:Spermatozoa / Q000276:immunology; D013552:Swine; D015044:Zona Pellucida / Q000032:analysis / Q000276:immunology*
chemical_list: D000941:Antigens; D003270:Contraceptive Agents; D007106:Immune Sera