Changing parameters of donor semen
Leto, S.; Frensilli, F.J.
Fertility and Sterility 36(6): 766-770
1981
ISSN/ISBN: 0015-0282 PMID: 7308520 DOI: 10.1016/s0015-0282(16)45923-6Document Number: 409409
Effective contraception and easily available abortion have contributed to the decline of adoptable children. This decline has resulted in a marked increase in the demand for AID. The provider of donor semen must establish minimal semen criteria to meet this demand effectively. During the past 8 years the authors have found a declining trend in several parameters of donor semen. Sperm count has decreased steadily, but not motility. Forward progression, viability, and morphologic characteristics have also shown a declining trend. The authors have had to reject a greater number of potential candidates in each ensuing year to exceed their minimal semen criteria. Despite the higher rejection rate, the authors have not been able to maintain the higher sperm parameters seen in the earlier years. The authors project that in 5 or 6 years, if the trend continues, no potential donor will meet their current minimal standards.