T. Waghorn

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Managing anthelmintic resistance--use of a combination anthelmintic and leaving some lambs untreated to slow the development of resistance to ivermectin.

C. Miller, D. Leathwick, T. Waghorn, 2012, Veterinary parasitology.

Brave or gullible: Testing the concept that leaving susceptible parasites in refugia will slow the development of anthelmintic resistance

D. Leathwick, T. Waghorn, C. Miller, 2008, New Zealand veterinary journal.

Anthelmintic resistance and management of nematode parasites on beef cattle-rearing farms in the North Island of New Zealand

D. Leathwick, R. Jackson, D. West, 2006, New Zealand veterinary journal.

Growth and gastrointestinal nematode parasitism in lambs grazing either lucerne (Medicago sativa) or sulla (Hedysarum coronarium) which contains condensed tannins

W. Charleston, Waghorn Gc, T. Waghorn, 1995, The Journal of Agricultural Science.

Drenching adult ewes: Implications of anthelmintic treatments pre- and post-lambing on the development of anthelmintic resistance

I. Sutherland, D. Leathwick, T. Waghorn, 2006, New Zealand veterinary journal.

Acquired immunity to endoparasites in sheep interacts with anthelmintic treatment to infl uence selection for anthelmintic resistance

D. Leathwick, T. Waghorn, A-M B Oliver, 2010, New Zealand veterinary journal.

Carbendazim, at concentrations used on pasture for facial eczema control, reduces development of Trichostrongylus colubriformis when sprayed onto infected sheep faeces

C. Miller, D. Leathwick, D. Atkinson, 2009, New Zealand veterinary journal.

Drench-and-shift is a high-risk practice in the absence of refugia

D. Leathwick, T. Waghorn, A-M B Oliver, 2009, New Zealand veterinary journal.

Managing anthelmintic resistance: Untreated adult ewes as a source of unselected parasites, and their role in reducing parasite populations

D. Leathwick, T. Waghorn, A-M B Oliver, 2008, New Zealand veterinary journal.

Management of gastrointestinal nematode parasites on sheep farms in New Zealand

C. Heuer, K. Lawrence, R. Jackson, 2007, New Zealand veterinary journal.

Farm management practices associated with macrocyclic lactone resistance on sheep farms in New Zealand

C. Heuer, K. Lawrence, R. Jackson, 2006, New Zealand veterinary journal.

Selective and on-demand drenching of lambs: Impact on parasite populations and performance of lambs

C. Miller, D. Leathwick, D. Atkinson, 2006, New Zealand veterinary journal.

Prevalence of anthelmintic resistance on 62 beef cattle farms in the North Island of New Zealand

R. Jackson, D. Leathwick, D. West, 2006, New Zealand veterinary journal.

Prevalence of anthelmintic resistance on sheep farms in New Zealand

K. Lawrence, R. Jackson, D. Leathwick, 2006, New Zealand veterinary journal.

How repeatable is a faecal egg count reduction test?

D. Leathwick, T. Waghorn, C. Miller, 2006, New Zealand veterinary journal.

The distribution and anthelmintic resistance status of Trichostrongylus colubriformis, T. vitrinus and T. axei in lambs in New Zealand

D. Leathwick, T. Waghorn, Js Knight, 2014, New Zealand veterinary journal.

In vivo anthelmintic activity of Dorycnium rectum and grape seed extract against Ostertagia (Teladorsagia) circumcincta and Trichostrongylus colubriformis in sheep

D. Leathwick, M. Deighton, T. Waghorn, 2006, New Zealand Veterinary Journal.

Dynamics of the free-living stages of sheep intestinal parasites on pasture in the North Island of New Zealand. 1. Patterns of seasonal development

A. Vlassoff, D. Leathwick, T. Waghorn, 2011, New Zealand veterinary journal.

Dynamics of the free-living stages of sheep intestinal parasites on pasture in the North Island of New Zealand. 2. Weather variables associated with development

C. Miller, D. Leathwick, A. Vlassoff, 2011, New Zealand veterinary journal.

The efficacy and plasma profiles of abamectin plus levamisole combination anthelmintics administered as oral and pour-on formulations to cattle.

C. Miller, S. Ganesh, D. Leathwick, 2016, Veterinary parasitology.

Route of administration influences the concentration of ivermectin reaching nematode parasites in the gastrointestinal tract of cattle

A. Lifschitz, D. Leathwick, T. Waghorn, 2020, International journal for parasitology. Drugs and drug resistance.

The production cost of anthelmintic resistance in lambs.

C. Miller, D. Leathwick, T. Watson, 2012, Veterinary parasitology.

The in vitro response of field strains of sheep blowflies Lucilia sericata and L. cuprina (Calliphoridae) in New Zealand to dicyclanil and triflumuron

C. Mckay, A. Heath, T. Waghorn, 2013, New Zealand veterinary journal.

A profile of anthelmintic resistance and parasite control practices in New Zealand - results from a 2005 survey

K. Lawrence, D. Leathwick, R. Jackson, 2006 .

Nematode parasites in young cattle: what role for unexpected species?

D. Leathwick, T. Waghorn, K. Bekelaar, 2018, New Zealand veterinary journal.

Effect of plant species on the larvae of gastrointestinal nematodes which parasitise sheep.

C. Miller, H. Robertson, J. Hodgson, 1998, International journal for parasitology.