Random herd curves in a test-day model for milk, fat, and protein production of dairy cattle in The Netherlands.

@article{Roos2004RandomHC,
  title={Random herd curves in a test-day model for milk, fat, and protein production of dairy cattle in The Netherlands.},
  author={Adrianus PW de Roos and Adrianna Harbers and Gerben de Jong},
  journal={Journal of dairy science},
  year={2004},
  volume={87 8},
  pages={2693-701}
}
With random regression models, genetic parameters of test-day milk production records of dairy cattle can be estimated directly from the data. However, several researchers that used this method have reported unrealistically high variances at the borders of the lactation trajectory and low genetic correlations between beginning and end of lactation. Recently, it has been proposed to include herd-specific regression curves in the random regression model. The objective was to study the effect of… CONTINUE READING

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