Cow culling decisions adapted for management with cart

Russell Tronstad, Russell Gum

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

A stochastic dynamic programming (DP) model of range cow culling decisions incorporating market price uncertainties and dynamics of biological productivity was solved for biannual and annual calving systems. Decision trees were generated from the DP solutions using the Classification and Regression Trees (CART) methodology. The decision trees captured over 99% of the optimal DP returns from both biannual and spring-only calving. CART culling criteria in conjunction with dual-season calving increased wealth by 7% compared to optimal DP culling decisions with spring-only calving, and by 10% compared to a more traditional strategy of culling all open cows.

Original languageEnglish (US)
Pages (from-to)237-249
Number of pages13
JournalAmerican Journal of Agricultural Economics
Volume76
Issue number2
DOIs
StatePublished - May 1994
Externally publishedYes

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Keywords

  • CART
  • Culling range cows
  • Decision trees
  • Fertility
  • Market conditions
  • Stochastic dynamic programming

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Economics and Econometrics

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