Blog
About

4
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: not found

      Dairy cow culling strategies: making economical culling decisions.

      1 ,

      Journal of dairy science

      American Dairy Science Association

      Read this article at

      ScienceOpenPublisherPubMed
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          The purpose of this report was to examine important economic elements of culling decisions, to review progress in development of culling decision support systems, and to discern some of the potentially rewarding areas for future research on culling models. Culling decisions have an important influence on the economic performance of the dairy but are often made in a nonprogrammed fashion and based partly on the intuition of the decision maker. The computer technology that is available for dairy herd management has made feasible the use of economic models to support culling decisions. Financial components--including profit, cash flow, and risk--are major economic factors affecting culling decisions. Culling strategies are further influenced by short-term fluctuations in cow numbers as well as by planned herd expansion. Changes in herd size affect the opportunity cost for postponed replacement and may alter the relevance of optimization strategies that assume a fixed herd size. Improvements in model components related to biological factors affecting future cow performance, including milk production, reproductive status, and mastitis, appear to offer the greatest economic potential for enhancing culling decision support systems. The ultimate value of any culling decision support system for developing economic culling strategies will be determined by its results under field conditions.

          Related collections

          Author and article information

          Affiliations
          [1 ] School of Veterinary Medicine, Veterinary Medicine Teaching and Research Center, Tulare, CA 93274, USA.
          Journal
          J. Dairy Sci.
          Journal of dairy science
          American Dairy Science Association
          0022-0302
          0022-0302
          Jan 1998
          : 81
          : 1
          S0022-0302(98)75575-4
          10.3168/jds.S0022-0302(98)75575-4
          9493103

          Comments

          Comment on this article