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Cattle can be infected with several species of roundworms when grazing pastures. The most common are Ostertagia ostertagi (stomach worm), which live in the abomasum, and Cooperia oncophora (intestinal worm), which inhabit the small intestine. You can find these worms on all cattle farms where animals have access to grassland, even when only for ...
gastroenteritis or PGE) in cattle Informed and sound preparation will minimise roundworm infection with positive effects on enterprise returns. Identify Risk 1. All grazing cattle are exposed to round/gut worms and consequently can suffer production losses. Younger cattle are most at risk of disease until they acquire immunity. The potential ...
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A successful worm control plan includes: A worm control strategy integrated into the herd health plan that is adaptable to changing patterns of worm challenge and regularly reviewed by a vet or advisor. The use of regional warnings and forecasting tools. Methods to monitor parasite burden such as regular weighing of stock to check growth rates ...
In beef herds, anthelmintic treatment at weaning is of value, particularly if the young cattle are to be retained—eg, as replacement heifer stock or as steers to be fed. Cattle finished on grass should receive treatment at weaning and at intervals throughout the next 12 months and, if possible, should be moved to safe pastures to maximize liveweight gain.
In type I ostertagiasis, which results from recent infection by O ostertagi, most worms present are adults, and the response to anthelmintic treatment is good. Type I disease occurs primarily in calves 7–15 months old, most commonly from the time of weaning and ensuing months in warm temperate regions.
Faecal worm egg count (FGS) 2 months after TO (epg) >200 50-200 <50 Field type Permanent pasture Silage/hay aftermath Newly sown fields Grazing history Grazed by cattle <1 year old within last year Grazed by cattle 1-2 years old within last year Grazed by adult cows, sheep** or other species within last year
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Jun 17, 2021 · Two of the main genera of GIN with high prevalence in cattle are Cooperia and Ostertagia with Ostertagia ostertagi, the brown stomach worm, and Cooperia oncophora, an intestinal worm, being the most prevalent species in the UK. These share the same life cycle where L3 larvae are ingested by livestock from pasture and develop into adult worms in the gastrointestinal tract.
