Fast protein liquid chromatography profiles of seminal plasma proteins in young bulls: A biomarker of sperm maturity?

Breeding companies want to use semen from bulls as soon possible take advantage of their desirable genetics. It takes several weeks for the sperm quality young stabilize and post-thaw become acceptable artificial insemination. Seminal plasma proteins protect spermatozoa during cryopreservation; it may some time seminal protein profile stabilize. The purpose this study was determine if can be used a marker likely maturity in bulls. A comparison made ejaculates 10 9-10 months old (Sample I), with profiles taken same at 13-16 II) using fast liquid chromatography. This is method separating classes according binding ability. peak area height different did not differ significantly between two samples each bull, except 5 (heparin-binding proteins) total (p<0.05). heparin-binding were higher (p<0.05) Sample II than I. In conclusion, levels fertility associated increase age might serve biomarker maturity. .