title: Effect of egg yolk and other reagents upon the zinc of cold-shocked boar spermatozoa.
abstract: A marked reduction (80.8%) in the zinc uptake by boar spermatozoa cooled to 4 degrees C occurs when the seminal plasma is pretreated with egg yolk-glucose at this temperature. Crude lecithin is less effective (59.8%). Similar pretreatment of the seminal plasma by the polycationic drug Antrypol, which totally removes the zinc-precipitable basic haemagglutinin, does not result in a significant reduction of the sperm zinc uptake at 4 degrees C.
mesh_terms: D000818:Animals; D003080:Cold Temperature; D004530:Egg Yolk; D005260:Female; D006384:Hemagglutination; D066298:In Vitro Techniques; D008297:Male; D010713:Phosphatidylcholines / Q000494:pharmacology; D013094:Spermatozoa / Q000187:drug effects / Q000378:metabolism*; D013498:Suramin / Q000494:pharmacology; D013552:Swine; D015032:Zinc / Q000378:metabolism*
chemical_list: D010713:Phosphatidylcholines; D013498:Suramin; D015032:Zinc