Factors associated with small lungworm infections in heavily infected sheep in southeast South Australia

This field observational study describes the seasonal pattern of small lungworm infections under different grazing managements from August 2018 to March 2019. Live weight, lungworm and gastrointestinal nematode infection, as well as pasture type grazed and snail density, were measured at 5 farm visi...

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Bibliographic Details
Published in:Australian veterinary journal 2022-01, Vol.100 (1-2), p.20-28
Main Authors: Hanks, JE, Larsen, JWA, Campbell, AJD
Format: Article
Language:English
Subjects:
Animals
Feces
gastrointestinal nematodes
Grazing
Infections
Intestinal parasites
live weight
Nematode Infections - epidemiology
Nematode Infections - veterinary
Nematodes
Parasite Egg Count - veterinary
Pasture
Population density
Seasonal variations
Sheep
Sheep Diseases - epidemiology
small lungworm
snail density
South Australia
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Summary:This field observational study describes the seasonal pattern of small lungworm infections under different grazing managements from August 2018 to March 2019. Live weight, lungworm and gastrointestinal nematode infection, as well as pasture type grazed and snail density, were measured at 5 farm visits. Across all visits and mobs, about one quarter to one half of sheep were positive for small lungworm, although prevalence was as low as 0% and as high as 78%. The density of the intermediate host molluscs was greater than 1600 snails/m2 in irrigated perennial lucerne pasture when it was grazed (‘Pasture A’), but was low (
ISSN:0005-0423
1751-0813
DOI:10.1111/avj.13123