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Changing parameters of donor semen.

Abstract：

: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.

journal_name

Fertil Steril

journal_title

Fertility and sterility

authors

Leto S,Frensilli FJ

doi

10.1016/s0015-0282(16)45923-6

subject

Has Abstract

pub_date

1981-12-01 00:00:00

pages

766-70

issue

6

eissn

0015-0282

issn

1556-5653

pii

S0015-0282(16)45923-6

journal_volume

36

pub_type

杂志文章

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