The new sections, covering round worms, lungworm, liver and rumen fluke and ectoparasites such as flies, lice and ticks, provide a sound basis for advice for farmers and their advisers.
The guide was originally written more than 20 years ago and last revised in 2014. The new chapter have been updated by research groups from universities across the UK.
Each topic has been edited by vets and professors and each updated chapter includes life cycles, clinical signs, high risk conditions, diagnosis, testing, treatment, control and quarantine.
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