Survival analysis of longevity in dairy cattle on a lactation basis

@article{Roxstrm2001SurvivalAO,
  title={Survival analysis of longevity in dairy cattle on a lactation basis},
  author={Anki Roxstr{\"o}m and V. Ducrocq and E Strandberg},
  journal={Genetics, Selection, Evolution : GSE},
  year={2001},
  volume={35},
  pages={305 - 318}
}
An analysis of longevity in dairy cattle on a lactation basis is proposed. The approach allowed each lactation to have its own baseline hazard function, which gives a better description of the hazard than traditional analyses of the whole length of life. As a consequence, the overall fit of the model to the data was improved and fewer time-dependent variables were needed. Longevity on a lactation basis was defined from one calving to the next instead of from the first calving to culling… CONTINUE READING

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