Publications by authors named "Randi I Krontveit"

Vector-borne diseases are among major health constraints of small ruminant in Ethiopia. While various studies on single vector-borne diseases or presence of vectors have been conducted, no summarized evidence is available on the occurrence of these diseases and the related vectors. This systematic literature review provides a comprehensive summary on major vectors and vector-borne diseases in small ruminants in Ethiopia.

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Background: High incidences of gastritis and gastric ulceration are observed in sled dogs participating in endurance races. Exercise-induced increases in hormones like gastrin and cortisol have been suggested as possible contributing factors. An increase in C-reactive protein (CRP) has also been observed in canines during physical exercise.

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Mange mites are economically important ectoparasites of sheep and goats responsible for rejection or downgrading of skins in tanneries or leather industries in Ethiopia. The objective of this systematic review was to compute the pooled prevalence estimate and identify factors influencing mange mite prevalence in sheep and goats at national level based on the available research evidence. Articles on mange mite infestation of small ruminants in Ethiopia were searched in PubMed, Web of Science, Google scholar and African journals on-line.

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  • The study compared the effects of isoflurane alone and isoflurane combined with dexmedetomidine on cardiac index and oxygen extraction in horses under similar anesthesia depths.
  • Eight horses were used in a carefully controlled crossover design, receiving premedication and anesthetic agents to stabilize and maintain anesthesia.
  • Results showed that horses anesthetized with isoflurane and dexmedetomidine had a lower cardiac index and higher oxygen extraction compared to those receiving isoflurane alone, suggesting potential differences in cardiovascular response based on the anesthesia regimen.
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  • The study investigated the prevalence of Toxoplasma gondii in pet cats in Norway, finding a seroprevalence of 41% among the sampled cats.
  • Factors such as breed (pedigree cats showed lower risk), gender (males had higher risk), and age (older cats were more susceptible) influenced seropositivity rates, while health status did not.
  • Cats living in Oslo had a significantly lower risk of T. gondii infection compared to those in other areas of Norway.
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This meta-analysis estimates a single-group summary (effect size) for seroprevalence of Brucella spp. exposure in dairy cattle of Ethiopia. It also attempts to identify study-level variables that could explain the variation in apparent seroprevalence.

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  • Colic is a common but serious abdominal pain in horses, with some cases requiring expensive surgical treatment while others resolve on their own.
  • The study reviewed surgical cases from two hospitals in Norway from 2005 to 2011 and found that 54.5% of horses survived surgery and were discharged, with overall short-term survival at 74%.
  • Key factors influencing survival included the appearance of mucosal membranes, the affected gastrointestinal segment, and the board-certification status of the surgeon.
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This case-controlled study evaluated urinalyses from 111 primary cases diagnosed with feline lower urinary tract disease (FLUTD) and 101 healthy control cats. Urine samples were analysed by standardised procedures, and differences between the two groups were compared by multivariable logistic regression analysis, while controlling for age, body weight, gender and reproductive status. Further, the ability of using urine sediment findings to predict bacteriuria was evaluated.

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Objective: To identify housing- and exercise-related risk factors associated with the development of hip dysplasia (HD) as determined by radiographic evaluation in Newfoundlands, Labrador Retrievers, Leonbergers, and Irish Wolfhounds in Norway.

Animals: 501 client-owned dogs from 103 litters.

Procedures: Dogs were assessed from birth until official radiographic screening for HD at 12 (Labrador Retriever [n = 133] and Irish Wolfhound [63]) or 18 (Newfoundland [125] and Leonberger [180]) months of age.

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The aim of the study was to measure the effect of radiological hip and elbow dysplasia status and breed on overall survival in a cohort of four large dog breeds in Norway. Privately owned dogs of the Newfoundland (NF), Labrador Retriever (LR), Leonberger (LEO), and Irish Wolfhound (IW) breeds were followed prospectively from birth to 10 years of age. The age of death/euthanasia was registered.

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We conducted a prospective cohort study including privately owned dogs from the breeds Newfondland (NF), Labrador Retriever (LR), Leonberger (LEO), and Irish Wolfhound (IW) followed from birth until age 9 yrs. We wanted to investigate whether radiological hip dysplasia status given at approximately age 12-18 mos and other factors during growth influenced development of clinical signs due to hip-joint disease necessitating veterinary consultation. Whether or not such signs occurred due to hip dysplasia or due to secondary or primary DJD could not be distinguished, and we therefore used the term "owner-reported veterinary-diagnosed hip-related clinical signs" ("the event").

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The study-objective was to measure the effect of weight and growth related parameters on the risk of development of Canine Hip Dysplasia (CHD). The hypothesis was that heavy and fast growing dogs of large sized breeds were at increased risk of development of CHD compared to lighter and slower growing dogs. A prospective cohort study was conducted among dogs of four large breeds: Newfoundland (NF), Leonberger (LEO), Labrador retriever (LR), and Irish wolfhound (IW).

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