21. Singapore's sperm banks suffer from a shortage of donors, a Singapore newspaper reported Monday. 22. Last year, Thai veterinarians established an experimental elephant sperm bank , where samples are frozen. 23. She was an early advocate of artificial insemination and the establishment of sperm banks . 24. There are sperm banks , but no public egg banks. 25. He remarried and had a daughter, while Kyoko visited a sperm bank and became pregnant. 26. "It's the same as couples who go to the genius sperm banks , " she said. 27. It may be explained by that sperm banks accept only people with high sperm count. 28. Sperm banks are typically used by cancer patients and men about to undergo a vasectomy.29. About a dozen sperm banks in this country offer what is called donor identification release. 30. The Federal State of Bavaria maintains a suckler herd of cows and a sperm bank .
