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Related Experiment Videos

Applying breeding objectives to dairy cattle improvement

J C Dekkers1, J P Gibson

  • 1Department of Animal and Poultry Science, University of Guelph, ON, Canada.

Journal of Dairy Science
|October 20, 1998
PubMed
Summary

Breeding selection criteria must align with breeders' practical needs and perceptions for successful implementation. Integrating scientific principles with industry input ensures widely accepted and effective selection indexes.

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Area of Science:

  • Animal Breeding and Genetics
  • Agricultural Economics

Background:

  • Selection criteria definitions often fail practical adoption due to a lack of consideration for breeders' perceptions and industry needs.
  • Achieving widespread acceptance and implementation of selection criteria is challenging, demanding significant time and collaboration between scientists and industry stakeholders.

Purpose of the Study:

  • To review the process of developing and implementing selection criteria, focusing on aligning scientific principles with user needs and industry realities.
  • To explore methods for enhancing the acceptance and practical application of selection indexes in animal breeding programs.

Main Methods:

  • Review of scientific principles and industry practices in defining breeding objectives and selection criteria.
  • Analysis of alternative methods for presenting and delivering selection indexes to improve user acceptance.

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  • Examination of factors influencing selective mating decisions and their integration into breeding goal formulation.

    • Main Results:

    • Alternative methods like focusing on response to selection, component indexes, and direct cost accounting can improve index acceptance.
    • Strategies emphasizing linear indexes for parent selection followed by selective mating show high implementation potential.
    • The study highlights the importance of considering breeder perceptions and industry realities alongside technical economic optima.

    Conclusions:

    • Successful implementation of selection criteria hinges on balancing scientific rigor with the practical perceptions and needs of breeders.
    • Tailoring the presentation and formulation of selection indexes, alongside strategic mating decisions, is crucial for industry adoption.
    • The principles discussed, exemplified by the Canadian dairy industry, offer a generalizable framework for improving selection criterion effectiveness in animal breeding.