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Abstract

Licking behaviour in cattle has been reported to account for the disposition of topically administered macrocyclic lactones. However, its impact on anthelmintic efficacy remains to be established. Therefore, we evaluated the impact of ivermectin exchange between cattle on the reduction in the...

Author(s)
Bousquet-Mélou, A.; Jacquiet, P.; Hoste, H.; Clément, J.; Bergeaud, J. P.; Alvinerie, M.; Toutain, P. L.
Publisher
Elsevier Ltd, Oxford, UK
Citation
International Journal for Parasitology, 2011, 41, 5, pp 563-569
Abstract

Twenty-four Holando Argentino male calves were treated orally with 50 mg/kg body weight trichlorphon (TCF); 0.2 mg/kg body weight subcutaneous ivermectin (IVM); a combination of TCF+IVM at the same doses and administration routes; or remained untreated (control group). All calves were necropsied at ...

Author(s)
Fiel, C.; Guzmán, M.; Steffan, P.; Prieto, O.; Bhushan, C.
Publisher
Springer Berlin, Heidelberg, Germany
Citation
Parasitology Research, 2011, 109, suppl. 1, pp S105-S112
Abstract

The anthelmintic sensitivity of two field-derived isolates (designated FI001 and FI004) of cattle nematodes from beef farms in Scotland were investigated in a controlled efficacy test (CET). Efficacies of ivermectin pour-on (IVM-PO), IVM injectable (IVM-INJ) and moxidectin pour-on (MOX-PO)...

Author(s)
Bartley, D. J.; McArthur, C. L.; Devin, L. M.; Sutra, J. F.; Morrison, A. A.; Lespine, A.; Matthews, J. B.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2012, 190, 3/4, pp 454-460
Abstract

An experiment was carried out to study the possible interaction between dexamethasone (DXM) treatment and the efficacy of ivermectin (IVM) treatment in young cattle. Two groups, each of seven calves, were experimentally inoculated with an equal mixture containing 15,000 third stage larvae of ...

Author(s)
Areskog, M.; Samson-Himmelstjerna, G. von; Alvinerie, M.; Sutra, J. F.; Höglund, J.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2012, 190, 3/4, pp 482-488
Abstract

In Europe, most nematodoses are subclinical involving morbid rather than mortal effects and control is largely achieved using anthelmintics. In cattle, the genera most associated with sub-optimal performance are Ostertagia and Cooperia whereas in sheep and goats, subclinical losses are most often...

Author(s)
Kenyon, F.; Jackson, F.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2012, 186, 1/2, pp 10-17
Abstract

A 4-year study on the free-living stages of cattle gastrointestinal nematodes was conducted to determine (a) the development time from egg to infective larvae (L3) inside the faecal pats, (b) the pasture infectivity levels over time, and (c) the survival of L3 on pasture. Naturally infected calves...

Author(s)
Fiel, C. A.; Fernández, A. S.; Rodríguez, E. M.; Fusé, L. A.; Steffan, P. E.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2012, 187, 1/2, pp 217-226
Abstract

The main objective of the present study was to evaluate the accuracy of the faecal egg count reduction test (FECRT) to assess the resistance status of ivermectin (IVM)-resistant isolates of the cattle nematodes Ostertagia ostertagi and Cooperia oncophora, using the controlled efficacy test (worm...

Author(s)
Graef, J. de; Sarre, C.; Mills, B. J.; Mahabir, S.; Casaert, S.; Wilde, N. de; Weyenberg, M. van; Geldhof, P.; Marchiondo, A.; Vercruysse, J.; Meeus, P.; Claerebout, E.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2012, 189, 2/4, pp 378-382
Abstract

We investigated the magnitude of temporal changes in activity, posture and feeding behaviour of cattle infected with Ostertagia ostertagi, and their reversal after treatment with an anthelmintic. Twenty-six, 3-month-old, Holstein-Friesian bulls were allocated to one of three treatment groups. Bulls ...

Author(s)
Szyszka, O.; Tolkamp, B. J.; Edwards, S. A.; Kyriazakis, I.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2013, 193, 1/3, pp 214-222
Abstract

A three-year trial was performed in south-western Sweden to compare animal performance and levels of parasite control in three grazing groups, each with 18-24 first-season grazing (FSG) calves in similar set-stocked pasture enclosures. These groups were subjected to: (1) no parasite control (NT),...

Author(s)
Höglund, J.; Dahlström, F.; Sollenberg, S.; Hessle, A.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2013, 196, 3/4, pp 358-365
Abstract

A quantitative real-time polymerase chain reaction (qPCR) based on hydrolysis (TaqMan®) probes is described for robust and sensitive detection of the infection levels with eggs and third stage larvae (L3) of Cooperia oncophora and Ostertagia ostertagi isolated from cattle faeces. The current...

Author(s)
Höglund, J.; Engström, A.; Samson-Himmelstjerna, G. von; Demeler, J.; Tydén, E.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2013, 197, 1/2, pp 251-257

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