Present study was designed to evaluate the semen quality of breeding bulls positive for 24 and 30 kDa heparin binding proteins (HBPs) in the semen. Seventeen Holstein Friesian breeding bulls were screened for 24 and 30 kDa HBPs in semen by heparin-sepharose affinity chromatography and SDS-PAGE. and grouped into three based on presence/absence of HBPs. In vitro characteristics of sperm... https://www.bekindtopets.com/super-price-Chick-Brooder-Kit-clearance/