2-3-1987 ASPECTS OF SELECTION FOR PERFORMANCE IN SEVERAL ENVIRONMENTS WITH HETEROGENEOUS VARIANCES

@inproceedings{Garrick2017231987AO,
  title={2-3-1987 ASPECTS OF SELECTION FOR PERFORMANCE IN SEVERAL ENVIRONMENTS WITH HETEROGENEOUS VARIANCES},
  author={Dorian J Garrick and L. Dale Van Vleck},
  year={2017}
}
Dairy cattle evaluation schemes routinely assume homogeneous variance with respect to environment. Increasing evidence suggests the presence of systematic changes in variance components associated with mean level of performance. Best linear unbiased prediction procedures that account for heterogeneity are reviewed. The consequences of incorrectly assuming homogeneity for evaluation are demonstrated for a progeny test and an artificial breeding program that screens dams of sires from… CONTINUE READING

From This Paper

Figures, tables, and topics from this paper.

References

Publications referenced by this paper.
Showing 1-10 of 15 references

Effects of selection for secondary traits on genetic gain for milk production in cat

J. F. Keown
Genet . Sel . Evol . • 1984

Mixed model sire evaluation with dairy cattle - Experience and genetic gain

R. W. Everett, J. F. Keown, E. E. Clapp
J . Anita . Sci . • 1984

On selection among groups with heterogeneous variance

M. R. Edwards
Anim . Prod . • 1984

Heritability of milk yield and composition at different levels and variability of production

J. L. Lush
Anita . Prod . • 1983

Sire evaluation

M. Ron, R. Bar-Anan
Biometrics • 1979

Extension of the Gauss - Markov theorem to include the estimation of random effects

C. R. Henderson
Ann . Math . Statist . • 1976

Production and stayability trends in dairy cattle

D. S. Falconer
J . Dairy Sci . • 1976