LAWRENCE MCMURTRY We often get asked why we recommend not refrigerating (or even chilling) faeces requiring a culture for third-stage nematode larvae or when looking for stage-one lungworm larvae. Cold storage of faeces can affect the development and composition of parasites in larval cultures and extraction of lungworm. Third-stage larval cultures Ovine nematode species are […]
SUNAO FUJITA Clinical history: A 16-year-old, thoroughbred gelding presented with a slow growing mass in the left ventral thoracic/axillar region, extending into deep tissue (Figure 1). The mass was firm and non-mobile and had been present for six months, but had not changed in size. Cytology: The smears were of high cellularity, predominantly composed of […]
KAREN BAILEY Move over Corona – monkeypox is the hot new zoonosis in town! New Zealand recently recorded its first human cases of monkeypox in the latest zoonotic outbreak to hit the headlines. Following are a few facts about monkeypox and how it manifests in animals and humans. Monkeypox belongs to the Orthopoxvirus genus in […]
Equilibrium dialysis (ED) is considered the gold standard methodology when measuring Free-T4 in dogs and cats. Recent reports indicate that alternative methods for measuring Free-T4 may not offer any significant advantage over measuring TT4 alone, especially in dogs with non-thyroidal illness.* Despite recent logistical issues and increased costs, Gribbles Veterinary will continue to offer this […]
CRISTINA GANS Getting a diagnosis in an abortion outbreak can be challenging. Less than 50% of abortions investigated result in a diagnosis. A variety of tests are available at Gribbles Veterinary (including PCR, histology, microbiology and serology) which enhances our ability to obtain a diagnosis. However, this can also be confusing in terms of sample […]
CRISTINA GANS Clinical history: A five-year-old, female Rottweiler/ Labrador cross presented for a routine ovariohysterectomy. During the surgery a 5cm mass was identified in the left ovary. The entire uterus and both ovaries were submitted for histopathology. Post-mortem findings: After formalin fixation of the tissue, incision into the ovarian mass, revealed a mixture of tissues […]
ROBYN WINTERS Blood cells begin to degenerate as soon as they leave the body, and continue to do so in the sample tube. Blood cells from different species degenerate at different rates. For example, bovine and rabbit blood cells degenerate particularly quickly, but horse’s cells do not. By the time we receive the bloods in […]
BERNIE VAATSTRA Clinical history: A two-year-old, domestic shorthair cat died on arrival at the veterinary clinic. The owner reported the cat had been unwell and produced brown, syrupy urine the previous day. Concern was raised about the possibility of malicious poisoning, since there had been a spate of suspicious cat deaths in the neighbourhood. The […]
Many of our laboratories are reporting increased numbers of Salmonella isolates over the past month or more (from companion animals especially). MPI have advised us there is a cluster they are currently monitoring. The increase is occurring nationwide, but of note is a higher than normal occurrence in dogs from the upper North Island. Serovars […]
AMY WEEDEN Perianal tumours are fairly common in dogs. Distinguishing between the two neoplasms, which are specific to this anatomic location, is often straightforward. However, if this is not the case, there are some clinical and cytologic differences that will usually provide a definitive diagnosis. Circumanal gland tumours are also known as perianal gland tumours […]