861 results match your criteria: "Ross University School of Veterinary Medicine[Affiliation]"

To date, limited information is available on herpesviruses in bats from the Caribbean region. We report here high detection rates (24.24%, n = 66) of herpesviruses in oral samples from apparently healthy bats ( (75%, 9/12) and (28%, 7/25)) on the Lesser Antillean Island of St.

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Development of cocrystals through crystal engineering is a viable strategy to formulate poorly water-soluble active pharmaceutical ingredients as stable crystalline solid forms with enhanced bioavailability. This study presents a controlled cocrystallization process by cooling for the 1:1 cocrystal of Ketoconazole, an antifungal class II drug with the Fumaric acid coformer. This was successfully set up following the meta-stable zone width determination in acetone-water 4:6 (/) and pure ethanol.

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Background: Squamous cell carcinoma (SCC) in domestic cattle is an economically significant malignant neoplasm and has been documented primarily in ocular and periocular tissues, vulva, and perineum. SCCs are often slow-growing and locally invasive, but metastasis is uncommon. Increased risk of developing SCC has been predominantly associated with high levels of sunlight exposure and hypopigmentation (skin and conjunctiva).

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Characterisation of the influence of dietary fat and sugar on bone health utilising densitometry, micro-computed tomography and histomorphometry.

Bone

December 2024

Division of Clinical Anatomy, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University Tygerberg Campus, PO Box 241, Cape Town 8000, South Africa. Electronic address:

Obesogenic feeding can affect systemic metabolism and impact bone health and microarchitecture, but the findings of published studies often appear contradictory. This study aimed to compare the effects of a medium-fat/high-sugar (MF/HS) and a high-fat/high-fructose (HF/Fr) diet on the femora of weanling male Wistar rats, examining bone mineral content and density (BMC, BMD), cortical and cancellous bone microarchitecture and the cell populations within bone. Furthermore, we explored the correlations between circulating bone-targeting factors (in particular leptin, adiponectin and insulin) and bone parameters.

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A systematic review and meta-analysis on the prevalence of amphistome infection in domestic ruminants in the sub-Saharan Africa region.

J Helminthol

December 2024

School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Westville Campus, Durban4001, South Africa.

Systematic review and meta-analysis were conducted to provide comprehensive information on the prevalence of amphistome infections in domestic ruminants in sub-Saharan Africa. A systematic search of peer-reviewed articles published between 2002 and 2023 was conducted. Prevalence estimates and meta-analysis were based on 76 peer-reviewed articles which met the inclusion criteria.

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Copper is an essential trace element but becomes toxic in overexposed animals. Sheep are the domestic species most prone to chronic copper poisoning, as a slight increase in the dietary concentration can lead to liver accumulation and the development of clinical signs in this species. Common sources of copper in the diet are feed additives and mineral supplements, which are commonly used in pigs and poultry.

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Article Synopsis
  • Understanding reproductive success in domestic animals requires knowledge of sperm biology, fertilization, and conception processes.
  • Key focus areas include sperm maturation, capacitation, the acrosome reaction, and gamete recognition for successful fertilization.
  • Future research will advance reproductive techniques by examining molecular biology, immune interactions, environmental impacts, and multi-omics approaches to enhance fertility outcomes.
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Variation in nuclear size and shape is an important criterion of malignancy for many tumor types; however, categorical estimates by pathologists have poor reproducibility. Measurements of nuclear characteristics can improve reproducibility, but current manual methods are time-consuming. The aim of this study was to explore the limitations of estimates and develop alternative morphometric solutions for canine cutaneous mast cell tumors (ccMCTs).

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Challenges for Animal Health and Production in the Tropics and Mediterranean for the next 55 years.

Trop Anim Health Prod

November 2024

LEAF-Linking Landscape, Environment, Agriculture and Food Research Center, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017, Lisboa, Portugal.

Tropical Animal Health and Production is a journal founded 55 years ago. It is dedicated to the publication of results of original research, investigation, and observation in all fields of animal health, welfare and production which may lead to improved health and productivity of livestock and better utilization of animal resources in tropical, subtropical and similar environments. Research is in strong alignment with the United Nations' Sustainable Development Goals, particularly No Poverty, Zero Hunger, and Good Health and Well-being.

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Corrigendum to "Redefining on-farm practices: The perceived effect of a responsible antimicrobial use regulation on dairy farmers" (J. Dairy Sci. 107:6913-6929).

J Dairy Sci

November 2024

Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, J2S 2M2 QC, Canada; Groupe de recherche en épidémiologie des zoonoses et santé publique (GREZOSP), Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, J2S 2M2 QC, Canada; Centre de recherche en santé publique, Université de Montréal et Centre intégré de santé et de services sociaux du Québec du Centre-Sud-de-l'Île-de-Montréal, Montréal, H2L 4M1 QC, Canada.

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Analyses of the gut microbial composition of domestic pig louse Haematopinus suis.

Microb Pathog

December 2024

Research Center for Parasites & Vectors, College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan Province, China. Electronic address:

Haematopinus suis is an obligatory ectoparasite of the domestic pig, serving as a vector of several swine pathogens and posing great threats to the pig industry. The gut microbiome of lice is thought of an important mediator of their healthy physiology. However, there is a great paucity of lice-associated microbial communities' structure and function.

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Veterinary medical students experiencing curricular challenges naturally look to their institution for resources to facilitate improvement in academic productivity. Academic remediation programs tend to be institution-specific, and their impact on student success is uncommonly interrogated using rigorous objective assessment. This study investigated the deployment of an academic development program (ADP) in the second semester of the Doctor of Veterinary Medicine (DVM) Program.

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COVID-19 pandemic is considered a global crisis that adversely impacted the world economy. The virus possessed a serious threat to different sectors including agricultural, livestock, poultry and fish sectors in both developing and developed countries. COVID-19 pandemic and the associated lockdown for a long period have not only caused enormous distress to the millions of poor and marginal farmers for saving their crops and/or livestock but also affected livestock, poultry production systems and associated value chains, nutrition, health care and labour availability.

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Article Synopsis
  • Arthrocentesis is a key procedure for diagnosing and treating lameness in horses, but veterinary students often lack adequate training on live animals due to limited practice opportunities.
  • A study evaluated the impact of practicing arthrocentesis on an equine model before performing it on a live donkey, measuring students' stress levels and anxiety throughout the process.
  • Results showed no significant difference in performance or stress reduction between the model-trained and control groups, indicating that a single practice session may not effectively enhance students' skills or alleviate anxiety when performing arthrocentesis on live animals.
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Although protocols for superovulation have been described in horses, this technique has been discouraged due to the low embryo recovery rates in superovulated mares. The reason for these poor results is poorly understood, but the formation of a blood clot in the ovulation fossa following ovulations has been hypothesized. Therefore, this study aimed to assess the safety and effect of periovulatory anticoagulant therapy on embryo recovery of superovulated mares.

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The count of mitotic figures (MFs) observed in hematoxylin and eosin (H&E)-stained slides is an important prognostic marker, as it is a measure for tumor cell proliferation. However, the identification of MFs has a known low inter-rater agreement. In a computer-aided setting, deep learning algorithms can help to mitigate this, but they require large amounts of annotated data for training and validation.

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This paper presents a detailed gross description of all anatomical elements of the humerus in the African green monkey and provides comparative and differential elements on monkey osteology. The osteometric investigation adds value to the gross morphological investigation, adjoining metric data to the gross descriptive data set. An in-depth investigation of the microstructural aspects of the humeral bone tissue is provided, with qualitative and quantitative details and potential for diagnostic applications.

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This review paper delves into the intricate relationship between the genital microbiome and fertility outcomes in livestock, with a specific focus on cattle. Drawing upon insights derived from culture-independent metagenomics studies, the paper meticulously examines the composition and dynamics of the genital microbiome. Through advanced techniques such as high-throughput sequencing, the review illuminates the temporal shifts in microbial communities and their profound implications for reproductive health.

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SUMMARYTick paralysis is a potentially fatal condition caused by neurotoxins secreted by the salivary glands of certain ticks. Documented cases have been reported worldwide, predominantly in the United States, Canada, and Australia, with additional reports from Europe and Africa. This condition also affects animals, leading to significant economic losses and adverse impacts on animal health and welfare.

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Background: Endometritis is the leading cause of subfertility in horses, and it is a clinical problem where historically antibiotics have not always been used with prudent justification. Because of this, alternative therapies to treat endometritis are necessary for the rational use of antibiotics.

Objectives: To assess the in vitro antimicrobial activity of non-traditional therapies commonly used in clinical practice against microorganisms causing infectious endometritis in mares.

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Article Synopsis
  • * Traditional methods of counting lymphocytes in intestinal biopsies have low reliability due to varying opinions among pathologists, prompting the development of an AI model for more consistent detection.
  • * The AI model shows high sensitivity and predictive value in identifying lymphocytes, potentially improving diagnostic accuracy for feline chronic enteropathy when supervised by a pathologist, despite some errors noted in specific cases.
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Schwannosis in the brain of a neonatal calf.

J Vet Diagn Invest

October 2024

Department of Population Medicine and Diagnostic Sciences, Cornell University, College of Veterinary Medicine, Ithaca, NY, USA.

Article Synopsis
  • Schwannosis is a rare condition involving abnormal growths of Schwann cells in the central nervous system, leading to partial myelination of nerve fibers.
  • A case study is presented of a 1-day-old Holstein-Friesian calf that had schwannosis in its brain and was submitted for autopsy due to deformities and early death.
  • Histological examination revealed specific markers indicating Schwann cell origin, and no signs of infectious disease were found, suggesting schwannosis should be considered in similar cases of calf deformities.
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Article Synopsis
  • Parasites can adapt to exploit different host species, but little is known about their genetic evolution in natural settings with diverse hosts.
  • Researchers studied Bartonella bacteria in rodent populations in Israel to understand how they adapt when infecting different rodent species.
  • After infecting rodents, they found that specific genetic mutations dominated, particularly in a gene related to adhesion, indicating that these mutations could help the bacteria escape immune responses and evolve to better target specific hosts.
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Porcine Teschoviruses (PTVs) are ubiquitous enteric viral pathogens that infect pigs and wild boars worldwide. PTVs have been responsible for causing the severe clinical disease (Teschen disease) to asymptomatic infections. However, to date, limited information is available on large-scale epidemiological data and molecular characterization of PTVs in several countries.

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