Catecholamines in bovine semen.
In seminal plasma 5 x 10(-6) noradrenaline was found to induce head-to-head association in bull spermatozoa. The sum of noradrenaline and adrenaline in freshly collected semen was 10 ng/ml (5.2 x 10(-8) M), i.e., about 100 times lower than previously reported.
D000818:Animals; D002417:Cattle; D004837:Epinephrine / Q000378:metabolism*; D008297:Male; D009638:Norepinephrine / Q000378:metabolism* / Q000494:pharmacology; D012661:Semen / Q000378:metabolism*; D013073:Sperm Agglutination / Q000187:drug effects*
D009638:Norepinephrine; D004837:Epinephrine