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… larvae pasture adult cattle less affected parasites generally consume more worms than … species animals sheep cattle share few parasites sheep eat grass also consume remove … more extensive information managing internal parasites calves dairy any one time most worm …

… around world its making harder control parasites which affects animal health slows … ideal many farmers now focused managing parasites effectively even when resistance … policies reduce parasite pressure monitoring parasites drench effectiveness more closely …

… information anthelmintic resistance internal parasites major problem impacting productivity … information anthelmintic resistance internal parasites major problem impacting productivity …

… 6 months age have little immunity internal parasites worms major worm factories your farm … from 36 months age grow ability deal incoming parasites improves two main ways immune system … more effective less energy protein used fight parasites more can used growth sometime …

… breeding values ebvs resistance internal parasites heritability 2530 most sheep carry internal parasites worms some sheep affected more … scouring dag forming changes feed internal parasites ryegrass staggers mineral imbalances …