Semen cryopreservation and the conservation of endangered species
Jörns Fickel1 & Asja Wagener2 & Arne Ludwig1
1Department of Evolutionary Genetics, Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, 10315 Berlin, Germany
2Institute of Animal Sciences, Humboldt-University Berlin, Invalidenstr. 42, 10115 Berlin, Germany
Currently, more than 16,000 plant and animal species are imminently threatened by extinction, often as a direct consequence of anthropogenic influences. One of the measures to halt that process is genetic resource banking. This short review focuses on mammal sperm cryopreservation in combination with assisted reproduction techniques. It summarizes general problems, recent developments, and currently applied protocols and gives an overview of hitherto existing successes of assisted reproduction measures in wild animals in the light of conservation efforts.