Virji N, Vahlquist A, Eliasson R
Experientia. 1981 Dec 15;37(12):1267-8. doi: 10.1007/BF01948351.
Vitamin A concentration has been determined in human semen with and without hydrolysis by fluorometry and high performance liquid chromatography (HPLC). The vitamin A content of human spermatozoa is much lower than that reported for rabbit spermatozoa but approximately equal to that of bull spermatozoa.