Influences of amount of pedigree information on computing time and of model assumptions on restricted maximum-likelihood estimates of population parameters in Swiss black-brown mountain sheep.

Abstract excerpt

Average daily gain between birth and 30 d of age of 42,644 lambs of Swiss Black-Brown Mountain Sheep were used in this analysis. The influence of amount of pedigree information on computing time and on REML estimates of population parameters was investigated on a subset of 7,848 lambs. If all available pedigree information was used, 89.4% of the lambs had at least four complete generations of known ancestors. For...

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