01313naa a2200229 a 450000100080000000500110000800800410001902400360006010000150009624500990011126000090021052006690021965000220088865000160091065000230092665000110094965000170096065000140097765300200099165300220101177300500103315213792023-11-28       1977    bl uuuu     u00u1 u    #d7 a10.1093/genetics/86.4.885.2DOI1 aYAMADA, Y.  aEvaluation of the culling variate used by breeders in actual selection.h[electronic resource]  c1977  aAbstract; The theoretical basis and computational procedures for estimating the culling variate utilized by breeders in actual selection are presented. The essential part of this procedure is to derive the unknown culling variate in terms of a linear combination of traits based on realized indirect selection differentials of those traits and phenotypic variances and covariances among traits in the population. Special emphasis is placed on the distribution of the variables involved. The accuracy of the culling variates is estimated by use of the biserial correlation with some modifications. Numerical illustrations are given for different types of selection.  aBiological models  aMathematics  aSelection criteria  aAnimal  aMelhoramento  aSeleção  aCrosses genetic  aSelection genetic  tGeneticsgv. 86, n. 4, p. 885-899, Aug. 1977.