Prof Bill Pomroy staff profile picture

Contact details +6469518161

Prof Bill Pomroy

Professor of Veterinary Parasitology

School of Veterinary Science

Emeritus Professor of Veterinary Parasitology


Bachelor of Veterinary Science (Hons)

University of Sydney, N.S.W., Australia, 1976.

Diploma of Veterinary Clinical Studies,

University of Sydney, N.S.W., Australia, 1979.

Doctor of Philosophy, Massey University, 1995

Thesis title "Some aspects of the host-parasite relationship between goats and gastrointestinal nematodes"

Specialist Registration

Registered as a specialist in Veterinary Parasitology by the New Zealand Veterinary Council, 2001.

Publications: author of >135 peer-reviewed publications and > 200 conference presentations

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Contact details

  • Ph: 85161
    Location: 8.27, IVABS
    Campus: Turitea

Research Expertise

Research Interests

My research is concentrated in three main areas. These include gastrointestinal nematodes of ruminants (sheep, cattle and red deer) with particular regard to issues around achieving sustainable parasite control in the face of anthelmintic resistance. I have an interest in: using activity parameters as a proxy to determine the effects of parasitism on livestock;  the impact of liver fluke on milk production in the New Zealand context;diagnostic approaches towards anthelmintic resistance; usefulness of some management procedures for achieving good parasite control with reduced anthelmintic use; answering the query as to how to achieve the benefits of increased milk yield in dairy cows associated with parasite control but without the use of anthelmintics. Other areas include:  flystrike on sheep and how we can better model these parasites to obtain better risk evalulation; the epidemiology of apicomplexan protozoa especially Neospora, Toxoplasma and coccidia in the New Zealand context and more recently, following the recent identification of Theileria orientalis in New Zealand, my interests now include the impact of this on animal health of cattle in New Zealand.  I also have an interest in parasites of wildllife in New Zealand, most recently apicomplexan parasites.


21st Century Citizenship, Resource Development and Management, Health and Well-being, Future Food Systems

Area of Expertise

Field of research codes
Agricultural And Veterinary Sciences (070000): Veterinary Parasitology (070708): Veterinary Sciences (070700)


Although now retired and not accepting any further post-graduate students I maintain and interest in all areas of veterinary parasitology including

anthelmintic  resistance

gastrointestinal nematodes


Theilieria orientalis

Liver fluke - Fasciola hepatica

Flystrike of sheep

Research Projects

Summary of Research Projects

Position Current Completed
Project Leader 5 23
Team Member 0 2

Teaching and Supervision

Teaching Statement

Veterinary Parasitology

Current Doctoral Supervision

Main Supervisor of:

  • Paul Brett - Doctor of Philosophy
    Developing a risk prediction model for flystrike in New Zealand
  • Seer Ikurior - Doctor of Philosophy
    Develop support tools for sustainable control of GI nematodes in sheep
  • Andrew Dowling - Doctor of Philosophy
    The economic impact of Fasciola hepatica for New Zealand dairy cows

Co-supervisor of:

  • Arka Gupta - Doctor of Philosophy
    Development of novel CT based Anthelmintics to overcome the drug resistance problem in nematode infested ruminants.
  • Sarah Coker - Doctor of Philosophy
    Morphological and Molecular Characterisation of Coccidia (Eimeria spp.) in Kiwi (Apteryx spp.)

Completed Doctoral Supervision

Main Supervisor of:

  • 2019 - Kevin Lawrence - Doctor of Philosophy
    The epidemiology of Theileria Orientalis Ikeda type in New Zealand
  • 2017 - Daniela Tapia Escarate - Doctor of Philosophy
    A study on some aspects of the pathogenicity, diagnosis and control of gastrointestinal nematodes in deer
  • 2015 - Sharifah Syed Hussain - Doctor of Philosophy
    Some aspects of the epidemiology of neosporosis in sheep in New Zealand
  • 2014 - Christian Sauermann - Doctor of Philosophy
    Some aspects of the population dynamics of Cooperia oncophora
  • 2010 - Alejandro Grinberg - Doctor of Philosophy
    Epidemiological Studies of Cryptosporidiosis
  • 2007 - Aurelie Castinel - Doctor of Philosophy
    Causes of neonatal mortality in the New Zealand sea lin (Phocarctos hookeri)

Co-supervisor of:

  • 2020 - Natasha Bansal - Doctor of Philosophy
    Exploring the host-parasite relationship between Brown Kiwi (Apteryx mantelli), kiwi ticks (Ixodes anatis) and kiwi tick-borne haemoparasites
  • 2013 - Kerri Morgan - Doctor of Philosophy
    Coccidiosis in the Kiwi (Apteryx spp.): Aspects of the Pathology, Epidemiology and Parasite Biology
  • 2006 - Chioma Okeoma - Doctor of Philosophy
    Studies on Neospora Caninum and Neosporosis in New Zealand
  • 2002 - Lise Klank - Doctor of Philosophy
    The Effect of Host Immunity on the Development and Survival of the Free-Living Stages of Common Trichostrongylid Parasites of Sheep.
  • 2000 - Rajesh Gopal - Doctor of Philosophy
    Some aspects of ivermectin resistance in gastrointestinal nematodes of goats and sheep.

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