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The role of targeted selective treatments in the development of refugia-based approaches to the control of gastrointestinal nematodes of small ruminants.
The concept ofRefugia is explained, the role of refugia-based approaches to the management of anthelmintic resistance is described and the markers that have been studied as indicators for TSTs are reviewed. Expand
The use of urban sewage sludge on pastures: the cysticercosis threat.
Cysticercosis due to Taenia saginata appears to be one of the major pathological threats when sewage sludge is used to fertilise cattle pastures in temperate areas and future investigations should concentrate on the most sustainable means of reducing risk. Expand
Faecal egg count reduction test for assessing anthelmintic efficacy: average versus individually based estimations.
The individual FECR provided reliable evaluation when egg counts were over 300 eggs/g and when at least 10 animals were tested, and the individual-based FECR presented lower values than the average- based FECR in most cases. Expand
Morphological identification of nematode larvae of small ruminants and cattle simplified.
By estimating the proportion of the sheath tail of a larva comprised of a terminal thin whip-like filament, identification is aided, particularly in those L3 of species that resemble one another closely, such as Chabertia ovina and Oesophagostomum venulosum. Expand
Monitoring the efficacy of ivermectin and albendazole against gastro intestinal nematodes of cattle in Northern Europe.
Investigation of the prevalence of anthelmintic resistance in gastro-intestinal nematodes on cattle farms in Germany, Belgium and Sweden in 2006 and 2007 and results suggest that testing of anesthetic efficacy should be performed more intensively due to possible insufficient efficacy of current drugs are suggested. Expand
Identification of Haemonchus species in domestic ruminants based on morphometrics of spicules
Abstract An easy and rapid tool for the individual identification of Haemonchus species in domestic ruminants might be very useful in the study of natural populations, especially when two (or three)Expand
Multispecies and multiple anthelmintic resistance on cattle nematodes in a farm in Argentina: the beginning of high resistance?
From necropsy results, it could be concluded that Cooperia oncophora was resistant to avermectins and benzimidazoles and that CooperIA punctata, Ostertagia ostertagi and Haemonchus placei were resistant to benzimdazoles. Expand
Contrasting genetic structures of two parasitic nematodes, determined on the basis of neutral microsatellite markers and selected anthelmintic resistance markers
The findings suggest that there are severe bottlenecks in the H. contortus populations, possibly because of their reduced abundance during unfavourable periods and their high reproductive rate, which allows the species to persist even after severe population reduction. Expand
Sheep and goat nematode resistance to anthelmintics: pro and cons among breeding management factors.
The most efficient way to limit the increase of anthelmintic resistance remains the reduction of the selection pressure by drugs, and optimal timing to maximise their efficacy. Expand