Four experiments were conducted to determine oxytocin concen tration of bovine luteal tissue at different stages of the estrous cycle and to study the effects of prostaglandins F₂α (PGF₂α), E₂ (PGE₂), luteinizing hormone (LH), cycloheximide, colchicine and cytochalasin B on oxytocin synthesis and release in vitro. In experiment 1, luteal...
This study was conducted to investigate the involvement of selenium and glutathione peroxidase in
prostaglandin biosynthesis by the ram vesicular gland.
Vesicular glands were collected from healthy intact
rams covering a wide range of selenium nutrition and were
analyzed for selenium concentrations, glutathione
peroxidase activities and levels of prostaglandin E₂...
This study was conducted to investigate the distribution
of glutathione peroxidase (GSH-Px) and selenium in
semen of the boar, bull, ram and stallion, and in the reproductive
tissues of the boar, bull and ram. The effect
of repeated noncryoprotective freeze-thawing on GSH-Px
activity was also studied. Both hydrogen peroxide (H₂0₂)...