Publication Date
6-2017
Series Number
DPIRD-107
Publisher
Department of Primary Industries and Regional Development, Western Australia
City
Perth, WA
Abstract
Lost productivity due to drench resistance in sheep worms has been recognised as a widespread problem in Western Australia (WA) since the 1980s. The first member of the macrocyclic lactone (ML) group, ivermectin, was released in Australia in 1988 and by 1993 the first case of resistance to this group was discovered. It is now thought that more than 85% of WA sheep farms are likely to have ML resistant sheep worms. In other parts of Australia, resistance to barber's pole worms is especially severe and involves all drench groups except the newly-released drench, monepantel (Zolvix).
Number of Pages
8
Keywords
sheep, worms, ivermectin, worm resistant sheep, rams
Disciplines
Meat Science | Other Animal Sciences
Recommended Citation
Department of Primary Industries and Regional Development, Western Australia.
(2017), Sheep worms – breeding worm resistant sheep. Department of Primary Industries and Regional Development, Western Australia, Perth, WA. Factsheet DPIRD-107.
https://library.dpird.wa.gov.au/ap_factsheets/17
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