Abstract
In Chapter 3, it was stated that the genetic aspects of the production system set both the limits and potential for performance of the system. The breeding stock input into the system introduces potentials for animal performance but these are not usually exceeded (experimental lean growth promotants such as ractopamine and somatotropins do increase lean growth potential above that expressed without their use). In this chapter, we will examine alternative breeding systems to provide that input, tools available to the breeder and producer to improve the potential for that input, and the evolution of genetic improvement tools from the traditional showring-based visual appraisal approach to modern computer-based performance testing and genetic evaluation procedures.
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© 1991 Springer Science+Business Media New York
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Pond, W.G., Maner, J.H., Harris, D.L. (1991). Genetics and Breeding Systems. In: Pork Production Systems. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3932-2_6
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DOI: https://doi.org/10.1007/978-1-4615-3932-2_6
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