Abstract
Genetic resource banking (GRB) or ex situ conservation in livestock species is the storage of genetic material for breeding purposes. Genes are present, with few exceptions, in every cell within an organism but only germ cells have the ability to transmit this information from one individual to another. Germplasm banking is the main tool for directing and enhancing this genetic flow in intensive farming, as it is for preserving the genetic diversity of a livestock population. The only current technique for the storage of germ cells is freezing them in liquid nitrogen (cryobanking). Traits in the breeding goals of a genetic program are retained in this way from the moment of insemination; otherwise, these genetic resources would be lost. Sperm from boars displaying high genetic values can be preserved following either rapid or slow freezing, as it is explained in this chapter together with a complete introduction to the legal issues of animal cryobanking. A new way of sperm preservation in pigs is also discussed.
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Casas, I., Flores, E. (2013). Gene Banking: The Freezing Strategy. In: Bonet, S., Casas, I., Holt, W., Yeste, M. (eds) Boar Reproduction. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-35049-8_11
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