Insemination of aspired sperm from an alloplastic reservoir: further results in bulls.
Following encouraging results in rats, a similar cup-shaped silicone prosthesis of 1 ml volume was implanted 8 times upon the cauda of the epididymis in bulls. Aspirations from this prosthesis showed 10-70% motile spermatozoa up to 14 days after surgery. Aspired spermatozoa were deep-frozen in pellet form for 6 weeks. Artificial insemination in 8 cows under field conditions resulted in pregnancies in 4 of them. Clinical application for patients with aplasia or lengthy stenosis of the vas is under way.
D000818:Animals; D002415:Cats; D004822:Epididymis; D005260:Female; D007315:Insemination, Artificial / Q000295:instrumentation / Q000379:methods*; D008297:Male; D011247:Pregnancy; D019736:Prostheses and Implants; D012828:Silicones; D013081:Sperm Motility; D013094:Spermatozoa; D013396:Suction
D012828:Silicones