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Updated: Jun 1, 2026

Assessing Differences in Sperm Competitive Ability in Drosophila
Published on: August 22, 2013
Reconsidering the number of offspring per gamete donor in the Dutch open-identity system
Pim M W Janssens1, Annemiek W Nap, Laszlo F J M M Bancsi
1Department of Clinical Chemistry and Haematology/Semen Bank, Rijnstate, Wagnerlaan 55, Arnhem, The Netherlands. pjanssens@rijnstate.nl
Abstract:
The introduction of legislation in the Netherlands in 2004 enabling donor offspring to identify and make contact with their donors has led to a need to reconsider the number of offspring that an individual semen donor may produce. To this end, we made a survey on the limits for offspring per donor in 29 different countries, distinguishing between systems with anonymous and open-identity sperm donation. We counted donations as individual offspring conceived, or as the number of women/families helped, by a single donor. The interests of the various participants in gamete donation in open-identity and anonymous systems are considered with some of the basic assumptions and interactions between the different parties that might be used to formulate reasonable guidelines. A number of recommendations are made.
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