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Related Experiment Videos

Using genetics to control cattle parasites-the Rockhampton experience.

J E Frisch1, C J O'Neill, M J Kelly

  • 1CSIRO, Tropical Beef Centre, North Rockhampton, Australia. John.Frisch@roll.rock.tap.csiro.au

International Journal for Parasitology
|March 17, 2000
PubMed
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Developing genetically resistant cattle lines offers a sustainable solution to persistent parasite problems, including cattle ticks and nematodes, in northern Australia. This approach presents a viable alternative to chemical controls and partial resistance strategies.

Area of Science:

  • Animal Science
  • Parasitology
  • Genetics

Background:

  • Cattle ticks, gastrointestinal nematodes, and buffalo flies are significant economic parasites affecting cattle in northern Australia.
  • Current control methods, primarily chemical treatments and breed resistance, are insufficient to fully mitigate parasite impact.
  • Complete parasite resistance is an ideal but largely unaddressed commercial goal.

Purpose of the Study:

  • To investigate the feasibility of developing completely parasite-resistant cattle lines through genetic selection.
  • To report on genetic changes in tick and worm resistance in a selected cattle line over 15 years.
  • To analyze the costs and benefits of enhancing tick resistance and explore buffalo fly resistance selection.

Main Methods:

  • Long-term genetic selection for increased tick resistance in the Belmont Adaptaur (Bos taurus) cattle line.

Related Experiment Videos

  • Monitoring of genetic changes in resistance to ticks and gastrointestinal nematodes over 15 years.
  • Evaluation of breed differences in buffalo fly resistance and its impact on live weight.

    • Main Results:

    • Demonstrated that completely resistant cattle lines can be developed genetically within a commercially viable timeframe.
    • Documented genetic advancements in tick and worm resistance in response to targeted selection.
    • Reported breed variations in buffalo fly resistance and associated live-weight effects.

    Conclusions:

    • Genetic selection is a powerful tool for developing cattle with complete resistance to major parasites.
    • This approach offers a sustainable and potentially cost-effective solution to persistent parasite challenges in cattle.
    • Further exploration into selecting for buffalo fly resistance is warranted.