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Published online by Cambridge University Press: 20 November 2017
In today’s global climate of consumer preferences or legislation for reduced antibiotic use in animal production, genetic approaches to health provide a natural and sustainable method to help ensure the wholesomeness of the food supply. The tools of molecular genetics have recently enabled the search for molecular genetic markers for health (Lamont, 1994, 1998). Although there are a few notable examples of health traits controlled by single genes, the vast majority of health traits are controlled by multiple genes.