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Keywords:

  • Admixed populations;
  • breed proportions;
  • genetic evaluations;
  • genomic breeding values;
  • mixed model equations;
  • multibreed population

Summary

A random regression model is presented as an approximation for multibreed variance model. The approximation is derived using the splitted multibreed model where the single breeding value is split to the breed specific and their segregation terms. The random regression model allows extending the multibreed information easily to genomic data models. We present the approach by a simple example.