This paper describes the practical implementation of a group genotyping strategy designed to increase the amount of information available by genotyping selected groups of individuals. Macrossan and Kinghorn (2005) developed a predictive index for the most informative group of animals to genotype under the conditions met in practice, being existing known genotypes and/or phenotypes, and pedigree information. The model was shown to be theoretically capable of increasing the amount of information available from group genotyping by 21% over a randomly chosen group of individuals. The present study concerns the practical application of this model in industry porcine herds. The model provided from 14% to 35% increase in information content, in comparison with two simple and sensible group selection strategies.

P. E Macrossan, O. I Southwood, Brian P Kinghorn

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume , , 24.20, 2006
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