A5027697320- Helminth infection and control
- Parasitic Infections and Diagnostics
- Coccidia and coccidiosis research
- Parasite Biology and Host Interactions
- Vector-borne infectious diseases
- Toxoplasma gondii Research Studies
- Vector-Borne Animal Diseases
- Animal Behavior and Welfare Studies
- Animal Nutrition and Physiology
- Viral Infections and Vectors
- Ruminant Nutrition and Digestive Physiology
- Animal Disease Management and Epidemiology
- Parasites and Host Interactions
- Insect and Pesticide Research
- Rabbits: Nutrition, Reproduction, Health
- Plant and fungal interactions
- Viral gastroenteritis research and epidemiology
- Amoebic Infections and Treatments
- Insect and Arachnid Ecology and Behavior
- Forensic Entomology and Diptera Studies
- Marine animal studies overview
- Parasitic Diseases Research and Treatment
- Genetic and phenotypic traits in livestock
- Microbial infections and disease research
- Research on scale insects
Massey University
2016-2025
AgResearch
2020
University of Veterinary and Animal Sciences
2006-2020
Cambridge University Press
2014
University of Edinburgh
2010
Abstract AIM: To establish the prevalence of anthelmintic resistance in parasitic nematodes on a random sample beef cattle herds North Island New Zealand. METHODS: A cross-sectional study was conducted using standardised faecal nematode egg count (FEC) reduction (FECR) test (FECRT) for ivermectin, levamisole and albendazole 60 calves each 62 farms chosen at from that conformed with selection criteria. Resistance to an inferred when there <95% FEC 7-10 days after treatment. Larval cultures...
AIM: To establish the prevalence of anthelmintic resistance in parasitic nematodes on sheep farms New Zealand.
Anthelmintic resistance was first confirmed in New Zealand 1979 and since then has become common-place; more than 50% of sheep farms now have detectable levels to one or chemical classes anthelmintic. Farmer drenching practices changed little over the last 15-20 years are clearly exerting a significant level selection for resistance. In absence new anthelmintics, current parasite control will be unsustainable long-term. Once substantial developed, reversion susceptibility is unlikely...
As part of a health survey New Zealand sea lions (Phocarctos hookeri) on Enderby Island, Auckland Islands (50°30′S, 166°17′E), neonatal mortality was closely monitored at the Sandy Bay colony for seven consecutive years. Throughout breeding seasons 1998–99 to 2004–05, more than 400 postmortem examinations were performed pups found dead this site. The primary causes death categorized as trauma (35%), bacterial infections (24%), hookworm infection (13%), starvation and stillbirth (4%). For...
Abstract AIM: To identify farm practices associated with the presence of resistance to a macrocyclic lactone (ML) anthelmintic on sheep farms in New Zealand. METHODS: A cross-sectional study was conducted test for associations between an ML (ivermectin) and management Selection both random (n=80) purposive (n=32; being history suspected resistance). Resistance inferred from faecal nematode egg count (FEC) reduction (FECR) tests (FECRTs) when there <95% FEC 7–10 days after treatment half dose...
Abstract AIM: To report current farmer opinions and farming practices relating to control of gastrointestinal nematodes anthelmintic resistance on sheep farms in New Zealand. METHODS: An interview-based cross-sectional study grazing management useage was conducted by veterinarians 80 randomly selected RESULTS: Useable data were returned 74/80 (92%) farmers who participated the study. However, despite contacting 400 target sample size 100 not reached. The results indicated that only 31% had...
To describe the epidemiology of epidemic bovine anaemia associated with Theileria orientalis infection (TABA) in New Zealand between 30 August 2012 and 4 March 2014.Blood samples data were obtained from cases TABA. The case definition for TABA was met when piroplasms present on blood smears haematocrit ≤0.24 L/L. Samples analysed using quantitative PCR (qPCR) assays detection T. Ikeda type. Only that positive qPCR included analysis. A herd defined as a had ≥1 animal Ikeda. Movement records...
The results from routine monitoring of parasite burdens in ewe flocks 1980 to 1991 by the Massey University Veterinary Clinic were analysed. Faecal strongylate nematode egg counts 401 flock samples analysed according age (two-tooth, 16-23 month-old vs mixed-age, greater than 2-year-old ewes) and month year. Each sample contained faeces ten ewes carried out on each faecal sample. ln mixed-age ewes, overall mean count per gram (epg) was lowest during January (82 epg) rose a peak October (539...