Anonymous
Anonymous asked in Science & MathematicsAgriculture · 8 years ago

How to prevent stomach worm infection of cattle/sheep in organic farming?

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  • 8 years ago
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    Strategic control (keeping parasite numbers below those that will cause production losses) is far superior to a 'curative' approach (treating only when animals are obviously diseased). This is because, by the time disease is recognised, significant production losses will already have occurred. Strategic control can be achieved by:

    1. Limiting the contamination of pasture with worm eggs when conditions for development are most favourable, namely autumn and spring. Effectively, this means using drenches at times when they will have the most effect on the life-cycle.

    2. Avoiding grazing young cattle on paddocks where high contamination with eggs and larvae is known to have occurred. This requires some system of grazing management.

    Both the time of calving and local weather conditions will play a major role in the selection of strategic drenching and grazing management strategies to control Ostertagia infections...!!

  • 8 years ago

    For sheep especially, raising breeds that have high natural resistance to internal parasites like Katahdin, St Croix and Barbado/Blackbelly Barbado. That and management practices such as rotating pastures and maintaining certain plant heights also helps. Some claim that plants high in tannins such as serecia lespedeza helps control worms. Otherwise, with non-parasite tolerant breeds, the only answer is the proper use of chemical anthelminics (dewormers.) If you don't, you are sentencing many of them to a slow lingering death by anemia.

    Source(s): I spoke at a livestock symposium yesterday on this very subject.
  • Anonymous
    8 years ago

    By regular WORMINGS & rotating pasture.

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