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Original Articles

New Zealand dairy cow removal reasons and survival rate

Pages 355-358 | Received 19 Dec 1988, Accepted 19 May 1989, Published online: 28 Nov 2012

References

  • Allaire , F. R. , Sterwerf , H. E. and Ludwick , T. M. 1977 . Variations in removal reasons with age for dairy females . Journal of dairy science , 60 : 254 – 267 .
  • Anonymous . 1957 . 33rd Farm production report , Hamilton , , New Zealand : Farm Production Divison .
  • Dentine , M. R. , McDaniel B. T. and Norman , H. D. 1987 . Comparison of culling rates, reasons for disposal, and yields for registered and grade holstein cattle . Journal of dairy science , 70 : 2616 – 2622 .
  • Harris , B. L. 1986 . Optimal cow replacement of New ZealandseasonaI supply dairy farms , New Zealand : Massey University . Unpublished MAgrSci thesis
  • Keller , D. S. and Allaire , F. R. 1987 . Relationships of first lactation milk traits and type traits to cow survival and a sire index for discounted total milk . Journal of dairy science , 70 : 2116 – 2126 .
  • MacAuthur , A. T. G. 1975 . Dynamic progranuning applied to animal replacement , New Zealand : Lincoln College . Unpublished PhD thesis
  • SAS . 1985 . SAS User's guide to statistics, version 5 ed , Cary , , USA : SAS Institute Inc, Box 8000 .
  • Westell , R. A. , Burnside , E. B. and Schaeffer , L. R. 1982 . EvaluationofCanadianHolstein-Friesiansireson disposal reasons of their daughters . Journal of dairy science , 65 : 2366 – 2372 .

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