In 2009 Pieter Oliehoek defended his PhD thesis with the title:
Genetic Conservation of Endangered Animal Populations.

The Research
Each animal in a population is related to each other to some extend. This can be calculated in a kinship coefficient from pedigree or molecular markers (DNA). If quality of data on kinship between animals (pedigree or molecular markers) is excellent, optimal contribution selection calculated from kinship is the most effective conservation strategy. In practice, quality of data is almost never perfect. This thesis investigated the result on conservation of poorer quality of data. Next it investigated the possibilities to increase or maintain genetic diversity with optimal contribution selection, knowing the data is not of perfect quality. The research showed that optimal contribution is still superiour. When pedigree data is not complete, there are powerful correction methods.