Disease Alert - May 2017

Discussion in 'NADIS Animal Health' started by Chris F, May 16, 2017.

  1. Chris F

    Chris F Staff Member

    Disease Alert May 2017 – Summary Local farm conditions may change, consult your vet. Effective worm control should be part of your veterinary health plan. For the Disease Alert Webinar please go to www.nadis.org.uk

    http://www.nadis.org.uk/media/402865/17-05 disease alert summary.pdf


    Parasitic Gastroenteritis
    • Gut worms typically affecting animals during the first season at grass.
    • Pasture is contaminated with worm eggs.
    • Eggs hatch and the larvae are ingested.
    • Mature in the lining of the abomasum (true stomach), causing damage.

    • Type 1:
    • occurs usually in late summer
    • overwintered larvae multiplied in host
    • sudden onset profuse diarrhoea and weight loss
    • increased time to slaughter or 1st calving

    • Type 2
    • larvae ingested in the autumn
    • arrested development
    • synchronised emergence in late winter

    Lungworm (Husk)
    • Signs include increased respiratory rate and effort and frequent coughing, especially after exercise.
    • Diagnosis on faecal exam or post mortem.
    • Vaccine is available but immunity requires repeated exposure.
    • Use of clean pasture difficult due to longevity of larvae on pasture.

    • Important to ensure effective wormers for the future
    • Natural variation allows some worms to survive treatment, and pass resistance to their offspring
    • Sustainable Control of Parasites in Sheep (SCOPS)
    • Control of Worms Sustainably (COWS)

    SCOPS Principles 1
    1. Work out a control strategy with your vet
    2. Use effective quarantine strategies to prevent the importation of resistant worms
    3. Test for Anthelmintic Resistance
    4. Administer anthelmintics effectively SCOPS Principles 2
    5. Use anthelmintics only when necessary
    6. Select the appropriate anthelmintic for the task
    7. Adopt strategies to preserve susceptible worms on the farm
    8. Reduce dependence on anthelmintics

    • Contagious Lymphadenitis (CLA)

    • Treat for flies

    Prevention is better than cure Plan for health with your vet - get a veterinary health plan

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