THE sperm bank in Shanghai is running out of supplies, according to a dispatch from the semi-official Hong Kong China News Agency (HKCNA). The Shanghai sperm bank, which was established in the Renji Hospital in 1988, has provided sperm for the artificial insemination of more than 300 women. HKCNA said the success rate was around 60 per cent, which meant the facility had reached international standards. The agency quoted local health officials as saying 'traditional moral concepts' stood in the way of more donors. Another misconception was that the donation of sperm would be detrimental to health. The small number of donors have decided on their acts of generosity after 'repeated pleadings', it said. The Renji Hospital, a leading facility in Shanghai, has tried to use monetary and other rewards to attract more donors.