Calculating Selected Reproductive Indices: Recommendations of the American Association of Bovine Practitioners

John Fetrow, David McClary, Robert Harman, Ken Butcher, Leon Weaver, Erich Studer, James Ehrlich, Wayne Etherington, Walt Guterbock, Donald Klingborg, Jeffrey Reneau, Norman Williamson

Research output: Contribution to journalArticlepeer-review

60 Scopus citations

Abstract

This paper presents the report of a committee of the American Association of Bovine Practitioners recommending methods for calculating several basic indices of reproductive performance on dairy farms. Indices presented are: overall reproductive performance, intensity of estrus detection, conception efficiency, pregnancy losses. reproductive culling, and reproductive efficiency in herds using a bull. Data from a hypothetical dairy herd are provided and example indices are calculated.

Original languageEnglish (US)
Pages (from-to)78-90
Number of pages13
JournalJournal of Dairy Science
Volume73
Issue number1
DOIs
StatePublished - 1990

Keywords

  • American Association of Bovine Practitioners
  • reproduction indices
  • reproductive performance

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