For unbiased ranking of elrea on the basis of their breeding values it is desirable to adjust the daughters' milk records for differential effects of non-ganetic factors• For non-orthogonal date such adjustments are desired to be done by least-squares methods* This method is assumed to adjust the records for non-genetic effects without disturbing the genetic differences* Sometimes it is experienced thet due to large nor>»orthogonality of data the adjustments for non-genetic effects tend to remove a portion of genetic differences* Therefore* it use considered useful to evaluate the extent to which the adjustments for various non- genetic factors affect the sire ranking.
Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 7. Symposia (1), , 192–194, 1982
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