John Gilleard PhD

  • October 12, 2022When The Worms Come Marching In

    Gastrointestinal worms may be silently reducing your pregnancy and weaning weights and increasing your winter feed...

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  • March 22, 2018A few key practices can reduce internal parasite resistance

    Resistance is something we currently hear a lot about in agriculture, including the issue...

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  • September 8, 2016Internal Parasites

    There are many different parasites that cause production impacts and disease in Canadian beef cattle. Parasite control is an...

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