Development of national animal genetic resource programs.

Globally, animal genetic resources are contracting due to economic forces. As a result, during the 1990s there was a dramatic increase in national animal genetic resource activities. Many national programmes were initiated and the Food and Agriculture Organisation of the United Nations played a prominent role in coalescing national actions. Nationally, programmes have been initiated that comprise of in situ, ex situ and information-exchange efforts. A critical element to national conservation efforts is the development of cryopreserved collections of germplasm. Several countries have initiated substantial multispecies collections of cryopreserved germplasm. The selection of animals within breeds of interest is an important consideration in building cryopreserved collections. Animal selection should be based on a lack of genetic relationship, with sufficient numbers of animals to ensure the capture of rare alleles. Major issues facing repository development and genetic conservation are: (1) that all breeds are in need of genetic diversity management; (2) a better understanding of in situ breed population dynamics is needed; and (3) the concept that repository collections can be used by a broad range of clientele across time as well as during emergency situations.