NEW ZEALAND VETERINARY JOURNAL

Application of a locking cortical pearl plate system to the feline lumbar vertebral column: a cadaveric study
Weniger M, Billau EM, Mund GM, Feichtenschlager C, Kramer M and Häußler TC
To assess the feasibility and safety of a locking cortical pearl plate system for the repair of lumbar vertebral fractures and luxation in cats using an feline model.
A retrospective analysis of post-mortem findings in New Zealand weka (), 1995-2022
Wichtel N, Vallée E, McInnes K and Hunter S
To determine the major causes of mortality in weka (), and to investigate associations between causes of mortality and captivity status, age, sex, decade of submission, and season.
Gastrointestinal nematode parasites of grazing ruminants: a comprehensive literature review of diagnostic methods for quantifying parasitism, larval differentiation and measuring anthelmintic resistance
Playford MC and Besier RB
This review summarises up-to-date research on the diagnosis of gastrointestinal nematode (GIN) infection in livestock and anthelmintic resistance in GIN. It was commissioned to assist funding bodies to prioritise and guide research and extension efforts to improve the health, welfare and productivity of grazing ruminants in the face of challenge with GIN. A comprehensive review of published articles from journals, books and websites was undertaken, with a focus on peer-reviewed articles published between 2000 and 2024 involving genera of GIN in grazing sheep and cattle with economic importance to New Zealand. Suggestions for articles to include were received from 14 experts in GIN diagnostics. This review is a summary of a longer report submitted to the sponsoring organisation. Clinical signs of GIN infection in grazing ruminants in temperate grazing systems are inadequate as triggers for management interventions including anthelmintic treatment as they are visible only after economically significant pathological changes have occurred. Livestock producers benefit from monitoring GIN burdens using faecal egg counts (FEC) or associated signals such as weight gain. In future, they may use remote monitoring devices for activity in animals, as well as estimating pasture larval contamination. Methods of diagnosing GIN infections using automated FEC devices have improved the convenience of monitoring parasite burdens compared with traditional laboratory methods. However, a lack of quality control measures and a gap in training of skilled technicians for larval differentiation may lead to a shortage of diagnostic capability. Current methods of diagnosing anthelmintic resistance, particularly FEC reduction tests, are not likely to be replaced by laboratory assays in the near future and attention should be focused on facilitating application of new FEC technologies for both animal monitoring and resistance diagnosis. Extension and application of currently available methods and technology will improve animal health and productivity in ruminant grazing systems in the short term. Adoption of novel technologies for remote animal monitoring, practical tools for estimating pasture larval contamination and promoting genetic selection for immunity and resilience to GIN in both sheep and cattle will further enhance productivity in the long term.
Folliculectomy for the treatment of pre-ovulatory follicular stasis in three illegally captured West Coast green geckos () to enable wild rehabilitation
Gartrell BD, Jolly M, Cree A, Short E and Hori T
In 2023, the New Zealand Department of Conservation seized 63 endemic reptiles that were being held without a permit. This group included three adult female West Coast green geckos ( that had been illegally removed from the wild 2 years earlier. They had been held in an outdoor enclosure with a pair of goldstripe geckos ().
Ulnocarpal arthrodesis as a new treatment for ectrodactyly in a dog and a cat
Vallios VI, Crosse KR and Bolia A
A 4-month-old male Shih Tzu dog (Case 1) and an 11-month-old female Devon Rex cat (Case 2) were referred to specialist veterinary hospitals for evaluation of right thoracic lameness and growth abnormality in the distal aspect of the forelimb.
Pets in the workplace: a scoping review
Gardner DH
There is a large and growing body of literature proposing that there are benefits to employees and workplaces when pets are allowed to accompany their owners to work. This article reports a scoping review of research that is workplace-based and that provides information on the reported benefits or problems of allowing employees' pets at work. The databases Scopus, Discover and Google Scholar were searched with the initial search terms " AND AND ." Results were reviewed initially by title to remove items where, for instance, "PET" was used as an acronym. Studies were included if they provided information on research into human well-being and/or work or task performance and pets at work. This included research into the presence of pets while working from home, as the home can be considered a workplace in this situation. A total of 189 papers on pets at work were identified from the searches. The abstracts were reviewed and papers that did not report research into the benefits and challenges of employees' pets at work were excluded, leaving 31 results. The majority of studies used survey methods and did not include validated psychometric measures of key variables including stress. Findings indicated that the presence of employees' pets at work may reduce stress and lead to more positive work-related attitudes, but these findings may not apply to all employees or all workplaces. Negative aspects of pets in the workplace include health risks to humans and animals, cultural concerns and dislike or fear of some animals, and the proportion of participants who raised these concerns or agreed with them varied widely between studies. However, there is little evidence on the prevalence of risks or how they are addressed, and there was no data on how work performance, absenteeism or staff turnover were related to pet-friendly policies at work. More research is required, and some directions for future research are suggested.
A pilot study to detect the effects of a green-lipped mussel () nutraceutical on working farm dogs with musculoskeletal abnormalities using accelerometry
Cave N, Bolton S and Cogger N
To obtain preliminary data on changes in gait from the use of a green-lipped mussel () extract product in working farm dogs with musculoskeletal abnormalities using accelerometry. New Zealand working farm dogs (n = 32) with signs of musculoskeletal abnormalities were enrolled in a double-blinded, placebo-controlled cross-over study. Each dog was allocated to one of six groups to receive three trial substances (180 mg full fat green-lipped mussel extract (GLME); 220 mg full fat green-lipped mussel extract (GLME); placebo) in one of the six possible different orders. Each trial substance was administered orally once a day for an 8-week period, with a 4-week washout in between each. Dogs wore a collar-mounted triaxial accelerometer for the study duration. Diet and activity were not controlled. Accelerations were recorded continuously and analysed (n = 27) in 10-second activity epochs partitioned into daytime and night-time periods. Analysis of activity during the daytime period was limited to epochs when dogs were gaiting faster than a walk. The median and IQR of activity were determined for the daytime and night-time. Additionally, the 75th and 90th percentiles of daytime activity for each 24-hour period were determined. Mixed effects linear regression models were constructed to determine if each trial substance altered the response variables.
An outbreak of ischaemic teat necrosis in a dairy herd in Taranaki, New Zealand
O'Connell JP, Lawrence KE, Taylor H, Orbell G, Bestbier ME, Crowley K and Hunt H
In spring 2021, on a seasonally calving, pastorally based, Taranaki dairy farm, 12 first-calving heifers (≤ 30 days post-calving) developed similar dry, red to black, crusting lesions on the medial aspect of the teat udder junction extending down the medial teat. Some cows had multiple teats affected. Treatment was initially unrewarding and did not slow the progression of the disease. Overall, 8/12 cows recovered, and 4/12 cows were culled, with three of the cows culled after a teat sloughed and the fourth after surgical amputation of a teat. Outbreaks of the same condition, on the same farm but affecting fewer animals, occurred in spring 2022 (n = 6) and spring 2023 (n = 3).
The association between fluoride concentrations and spontaneous humeral fracture in first-lactation dairy cows: results from two New Zealand studies
Wehrle-Martinez A, Dittmer KE, Back PJ, Rogers CW, Weston JF, Jeyakumar P, Pereira RV, Poppenga R, Taylor HS and Lawrence KE
To assess whether the fluoride concentration in the humeri of first-lactation, 2-year-old dairy cows with a spontaneous humeral fracture is significantly different from that of first-lactation, 2-year-old dairy cows without a humeral fracture.
Comparative evaluation of PCR and loop-mediated isothermal amplification (LAMP) assays for detecting in poultry
Poussard M, Pant SD, Huang J, Scott P and Ghorashi SA
To develop a colourimetric loop-mediated isothermal amplification (LAMP) assay for the detection of in clinical poultry samples and compare the performance of this assay with PCR. A secondary aim was to evaluate a simple DNA extraction method that could enable LAMP-based testing in the field without the need for specialised laboratory equipment.
The effect of pre-partum shearing of Corriedale ewes on placental and lamb development and neonatal behaviour
Scaglione-Sanson F, Neimaur-Fernández K, Cantou-Mayol I, Abreu-Palermo C, Rodríguez-Gamarra P, González-Montaña JR and Cal-Pereyra LG
To evaluate the effects of early and late pre-partum shearing of Corriedale ewes carrying single fetuses on placental and lamb development and neonatal lamb behaviour.
Liver copper concentration dynamics with different methods of injectable copper supplementation in dairy cows in New Zealand
Spearpoint J, Chambers G and Cuttance EL
To compare the responses of liver Cu concentrations in dairy cows between three forms of injectable Cu supplementation and a negative control group.
Where do all the ewes go? Ewe culling and mortality in 34 sheep flocks in New Zealand
Ridler AL, Corner-Thomas RA, Mote S, Morgan S, Kenyon PR and Flay KJ
To describe rates of and reasons for culling and mortality of ewes between breeding and mid-lactation on New Zealand sheep farms; to investigate associations of these variables with farm demographic variables; and to describe rates of and reasons for culling of ewes at weaning.
Effect of a pre-calving injectable trace mineral supplement on white blood cell function in seasonally calving pastoral dairy cows
Bates AJ, Wells M, Fitzpatrick C and Laven RA
To investigate the effect of injection of trace mineral supplement (TMS) 14-28 days before calving on white blood cell count (WBCC) and function, serum antioxidant capacity (SAC) and reactive oxygen species (ROS) in pasture-fed cattle after calving.
The effect of three different preservatives on the numbers and types of bacteria, Brix percentage, pH and nutritional composition of bovine colostrum sourced from New Zealand dairy farms
Cuttance EL, Mason WA, Cranefield S and Laven RA
To investigate the effect of preservation by addition of yoghurt starter, potassium sorbate and citric acid on counts of aerobic bacteria, spp., and coliforms, Brix percentage, pH, protein, fat and anhydrous lactose concentrations at 0, 7 and 14 days after collection for colostrum stored at ambient temperature.
Ikeda infection detected in red deer but not dogs or horses in New Zealand
Lawrence KE, Gedye K, Carvalho L, Wang B, Fermin LM and Pomroy WE
To determine whether evidence for infection with (Ikeda) could be identified in samples of commercial red deer , horses, and working farm dogs in New Zealand.
Repeatability of whole herd lameness scoring: an analysis of a New Zealand dataset
Laven RA, Mason WA, Laven LJ and Müller KR
To assess whether a whole-herd lameness score on a New Zealand dairy farm in spring could predict lameness prevalence on the same farm in summer (and vice versa) and whether a single-herd lameness score could be used to determine whether herd lameness prevalence was < 5% in both spring and summer.
Reduced anthelmintic use on 13 New Zealand sheep farms: farmer motivations and practical implementation
Ridler AL, Hytten K, Gray DI and Reid JI
To describe the personal drivers, sources of information and gastro-intestinal parasite control methods used by a group of New Zealand sheep farmers identified as low users of anthelmintic (AHC), and their perception of the efficacy and impacts of this approach.
Prevalence of cardiomyopathy and cardiac mortality in a colony of non-purebred cats in New Zealand
Seo J, Owen R, Hunt H, Luis Fuentes V, Connolly DJ and Munday JS
To evaluate the prevalence of subclinical cardiomyopathy and cardiac mortality in a research colony of non-purebred cats, established as a model of the wider cat population in New Zealand.
Sudden death due to aortic rupture in New Zealand sheep
Eames M, Vaatstra BL, Lawrence KE and Hunt H
Over a period of 2 months in the spring and early summer of 2021, 13 cases of sudden death in cull ewes due to aortic rupture were diagnosed at a small number of New Zealand abattoirs.
Lower urinary tract rupture in cats and dogs following severe blunt trauma
Godart B, Bonnel G, Bedu AS, Frippiat T and Leperlier DR
The medical records of cats and dogs admitted to the Department of Small Animal Surgery of the Centre Hospitalier Vétérinaire Pommery (Reims, France) with a history of vehicular trauma or falls from the first floor or higher were screened for occurrences of a lower urinary tract (LUT) rupture. Signalment, reported injuries, diagnostic imaging findings, and blood test results were extracted from the medical records.