Veterinary Medicine Commons^™

Features Of Lying Behavior Of Gazella Marica Fawns In Semicaptive Conditions, Adi̇l Uztemur, Abdülkadi̇r Orman

Turkish Journal of Veterinary & Animal Sciences

The lying behavior of Gazella marica fawns was investigated in the gazelle breeding station established to prevent the extinction of this species, whose numbers are decreasing continuously in the wild. There are significant differences between the lying duration in the bedding sites of different kinds (plant-based site, soil-based, side of a stone or rock). Gazella marica fawns were lying on one side of the body 50.23 min on average in the plant-based bed sites, 36.06 min in the soil-based places, and 38.14 min in the stone/ rock area. Gazella marica fawns from semicaptive conditions lied on one body side longer …

Histomorphological Evaluation Of Osteoreplacement With Germanium-Doped Calcium Phosphate Ceramics For Model Bone Defects In Rabbits, Tetiana Todosiuk, Mykhailo Rublenko, Valeriy Chemerovskiy, Nataliia Ulianchych, Volodymyr Kolomiiets

Turkish Journal of Veterinary & Animal Sciences

To give calcium phosphate ceramics osteoinductive properties, they are doped with silicon, germanium, zinc, and magnesium ions. The aim of this study was to evaluate the effects of doped and undoped calcium phosphate ceramics on reparative osteogenesis in rabbits. Twenty-four California white rabbits, aged 3 months and weighing 2.5 kg each, were used for the study. The rabbits were divided equally into experimental (n=12) and control (n=12) groups. In the experimental group, defects were replaced with granules of germanium-doped hydroxyapatite ceramics (HA/β-TCP/l-Ge–700), while in the control group, defects were filled with granules of unalloyed ceramics (HA/β-TCP–700). Subsequently, clinical and histological …

Application Of Some Artificial Intelligence Optimization Methods To Determine The Freshness Of Eggs, Hasan Alp Şahi̇n, Hasan Önder

Turkish Journal of Veterinary & Animal Sciences

Egg quality, can be divided into two groups as internal and external, is evaluated using various methods whether breaking eggs. Image processing makes digital images usable for various purposes such as image compression, image editing, object recognition, face recognition, medical imaging, and many other areas such as the automotive industry. This study aimed to determine the freshness of eggs using different artificial intelligence optimization methods with image processing without breaking the eggs. Artificial neural networks (ANNs), artificial bee colony, particle swarm optimization, and genetic algorithms were compared using classification coefficients. As a result of the study, it was determined that …

A One Health Approach To Enhancing Sars-Cov-2 Surveillance, Lauren C. Cybulska

Dissertations and Theses

Background

Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), the virus that causes coronavirus disease-2019 (COVID-19) in humans, can also infect domestic dogs (Canis lupus familiaris) and cats (Felis catus). Susceptibility and viral transmissibility in these species are concerns for public health due to the spillover risk to humans or other animals. This dissertation uses a One Health framework to explore key issues on this topic. We aim to identify gaps in understanding of SARS-CoV-2 in companion animals and investigate novel surveillance methods through human, animal, and environmental health perspectives.

Methods

Paper 1 provides an in-depth exploration of …

Targeting Cancers With Ohsv-Based Oncolytic Viral Immunotherapy, Rakin Tammam Nasar, Ifeanyi Kingsley Uche, Konstantin G. Kousoulas

School of Medicine Faculty Publications

The recent success of cancer immunotherapies, such as immune checkpoint inhibitor (ICIs), monoclonal antibodies (mAbs), cancer vaccines, and adoptive cellular therapies (ACTs), has revolutionized traditional cancer treatment. However, these immunotherapeutic modalities have variable efficacies, and many of them exhibit adverse effects. Oncolytic viral Immunotherapy (OViT), whereby viruses are used to directly or indirectly induce anti-cancer immune responses, is emerging as a novel immunotherapy for treating patients with different types of cancer. The herpes simplex virus type-1 (HSV-1) possesses many characteristics that inform its use as an effective OViT agents and remains a leading candidate. Its recent clinical success resulted in …

Identifying Dietary Timing Of Organic Trace Minerals To Reduce The Incidence Of Osteomyelitis Lameness In Broiler Chickens Using The Aerosol Transmission Model, Khawla Alharbi, Andi Asnayanti, Anh Dang Trieu Do, Ruvindu Perera, Layla Al-Mitib, Abdulkarim Shwani, Marco A. Rebollo, Michael T. Kidd, Adnan Ali Khalaf Alrubaye

Poultry Science Faculty Publications and Presentations

Our prior research demonstrated a 20% to 25% reduction in bacterial chondronecrosis with osteomyelitis (BCO) lameness in broilers with organic Zn, Mn, and Cu (Availa^® ZMC) supplementation. Expanding on this, we investigated the optimal timing for Availa^® ZMC feeding to mitigate BCO lameness and reduce feed additive costs in the poultry industry. In this study, we compared the application of 0.15% Availa^® ZMC for 56 days, the first 28 days, and the last 28 days. The experimental design was a randomized block design involving 1560 one-day-old chicks distributed across two wire-floor pens as BCO source infection and …

A Potential Of Watercress Nasturtium Officinale Bioactive Compounds In Inhibiting Infectious Myonecrosis Virus (Imnv) By Targeting Rna-Dependent Rna Polymerase (Rdrp) Virus From Several Countries: In Silico Approach, Qurrota A’Yunin, Fatchiyah Fatchiyah, Maftuch Maftuch, Feri Eko Hermanto, Muhammad Hermawan Widyananda, Narendra Santika Hartana, Muhaimin Rifa’I, Yoga Dwi Jatmiko

Karbala International Journal of Modern Science

Infectious myonecrosis virus (IMNV) disease causes mass mortality and decreased shrimp production. The RdRp region projects to the interior, where it may function in transcription. The focus of this study was to determine the effect of amino acid polymorphisms from several countries on the structure of RdRp and identify the potential of watercress in inhibiting IMNV by targeting the RdRp protein of IMNV through an in silico approach. The results showed that the structure of the IMNV RdRp protein from Indonesia was similar to Mexico, and the protein structure from India_QDN was identical to India_QIL. Ligand binding affinity values showed …

Toxicological Effects And Treatment Of Accidental Ingestion Of Simparica Trio® In Felis Catus: An Investigative Review, Aussia M. Stander

Honors Program: Senior Projects (Public)

Simparica TRIO^®, a canine endectocide manufactured by Zoetis, contains sarolaner, moxidectin, and pyrantel pamoate salt in an orally administered chewable tablet. These compounds are all toxic to both cats and dogs in sufficient amounts. As Simparica TRIO^® rises in popularity among pet owners, Felis catus (felines, cats) in multi-pet households (households with both cats and dogs) are at increased risk of overdosage and toxicosis from accidental ingestion of Simparica TRIO^® due to their smaller weight.

Simparica TRIO^® is not for feline use and little literature exists on the symptoms of and treatment for accidental ingestion …

The Impact Of A Pgym Variant On Myophosphorylase Deficiency In Red Angus Composite Cattle And Changes In The Skeletal Muscle Transcriptome Due To The Intramuscular Administration Of Lidocaine In Wether Lambs, Mackenzie Christin Batt

School of Biological Sciences: Dissertations, Theses, and Student Research

Project 1 focused on eight calves in a Nebraska herd (composite Simmental, Red Angus, Gelbvieh) that displayed exercise intolerance during forced activity. Available sire pedigrees contained a paternal ancestor within 2-4 generations in all affected calves. Pedigrees of the calves’ dams were unavailable, however, the cows were ranch-raised and retained from prior breeding seasons, where bulls used for breeding occasionally had a common ancestor. Therefore, it was hypothesized that a de novo autosomal recessive variant was causative of exercise intolerance in these calves. A genome-wide association analysis followed by whole-genome sequencing led to the identification of a variant in the …

Impact Of Strategic Postweaning Supplementation On March- And May-Born Yearling Range Heifer And Calf Growth And Performance In The Nebraska Sandhills, Josie Nicole Crouch

Department of Animal Science: Dissertations, Theses, and Student Research

Three experiments were conducted at the Gudmundsen Sandhills laboratory near Whitman, Nebraska. Experiment 1, a retrospective regression analysis, evaluated the impact of heifer percentage of mature body weight (BW) at breeding on heifer performance, subsequent pregnancy rates, and calf production. Overall pregnancy rates were greater (P < 0.01) for heifers at 60 to 70% of mature BW than 50 to 55%, with no differences in pregnancy rates (P ≥ 0.15) after 2-years of age. Heifers at 50 to 60% of mature BW had a greater (P = 0.05) proportion give birth in the first 21-d. A higher percentage of mature BW at breeding resulted in greater (P < 0.01) BW at birth and weaning for offspring.

Experiments 2 and 3 were 3-year studies that evaluated the impact …

Artificial Insemination And Fetal Programming In Beef Production Systems, Dempster M. Christenson

Department of Animal Science: Dissertations, Theses, and Student Research

Pregnancy to artificial insemination and late gestation fetal programming of the next calf crop are central to genetic development, reproductive longevity, calf crop productivity, and efficiency of cow/calf ranching. The purposes of this research are to find methods to improve pregnancy rate to artificial insemination, the growth and reproductive health of pregnant heifers, and the productivity of their offspring. In the first of four studies we found that extending the period of progesterone administration in an estrus synchronization protocol did not significantly hasten estrus response or increase pregnancy rate to artificial insemination, but timing of estrus within the melengestrol acetate …

Assessing The Impact Of Spraying An Enterococcus Faecium-Based Probiotic On Day-Old Broiler Chicks At Hatch On The Incidence Of Bacterial Chondronecrosis With Osteomyelitis Lameness Using A Staphylococcus Challenge Model, Anh Dang Trieu Do, Amanda Anthney, Khawla Alharbi, Andi Asnayanti, Antoine Meuter, Adnan Ali Khalaf Alrubaye

Poultry Science Faculty Publications and Presentations

Bacterial chondronecrosis with osteomyelitis (BCO) lameness is a bone disease characterized by the translocation of bacteria from the gastrointestinal tract, which colonize microfractures in broiler leg bones caused by rapid animal growth rate and weight gain, resulting in lameness. As such, BCO lameness represents a significant challenge for the poultry industry. This study aims to evaluate the effect of spraying broiler chicks on d0 at hatch with an Enterococcus faecium probiotic on the incidence of BCO-induced lameness, utilizing a Staphylococcus aureus challenge model. There were four treatments: (1) negative control (no probiotic + no challenge, NC); (2) positive control (no …

Pathology And Osteological Observations Of Early Pliocene Rhinoceros, Teleoceras Aepysoma (Perissodactyla, Rhinocerotidae) From Gray Fossil Site, Tennessee, Thomas Scaife

Electronic Theses and Dissertations

Rhinoceroses were an important part of North America’s Paleogene and Neogene ecosystems, with Teleoceras aepysoma being one of the last representatives of this family. Specimens of T. aepysoma from the Gray Fossil Site (GFS) possess distinct/peculiar pathologies: including a pair of fused ribs and ankylosed phalanges. A qualitative description of the pathologies in the GFS T. aepysoma, including new material, was conducted to accurately identify pathologies and make interpretations about the life history of the GFS rhinos. Analysis suggests that rheumatoid arthritis is common in the lower limb bones of GFS rhinos. Additionally, the rib and toe pathologies are more …

Cocoa Polyphenols Modulate The Fecal Microbiome In A Mouse Model Of Colitis, Independent Of Basal Diet And Colon Inflammation, Abby D. Benninghoff

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Chronic inflammation increases the risk of developing multiple chronic diseases, including cancer. The risk of developing colorectal cancer (CRC) specifically is increased in individuals who suffer from colitis, a characteristic of Inflammatory Bowel Disease (IBD). Diet is another risk factor for developing CRC, particularly an inflammation-promoting Western-type diet. Thus, supplementing a Western diet with functional foods containing anti-inflammatory polyphenols is a potential approach to decreasing CRC risk by reducing gut inflammation and altering gut microbiome profile. This study aimed to determine the effects of cocoa polyphenol (CP) supplementation on inflammation status and microbiome profile before, during, and after colitis when …

Cocoa Polyphenols Modulate The Gut Microbiome In A Site-Specific Manner In Mice, Marcus Hayden

Student Research Symposium

Gut Health and the Microbiome

• Colorectal cancer (CRC) is one of the most prevalent cancers in the United States; early-onset CRC is also on the rise [1].
• Colitis-associated CRC is defined as CRC that arises from inflammation of the colon.
• A Western-type diet has been shown to exacerbate colitis.
• Metabolites of the gut microbiome contain anti-cancer and anti-inflammatory properties [2].
• Diet is a key factor in the gut microbiome composition.
• Polyphenols in cocoa may restore the gut microbiome composition from pre-existing dysbiosis.
• More research is needed to study how dietary cocoa supplementation modulates the microbiome across several sites of the …

Alterations In Serum Thiol-Disulfide Homeostasis And Ischemia-Modified Albumin Concentrations In Clinical Canine Parvoviral Enteritis, Yasi̇n Şenel, Osman Safa Terzi̇, Erdal Kara, Özcan Erel, Sali̇m Neşeli̇oğlu, Ebubeki̇r Ceylan

Turkish Journal of Veterinary & Animal Sciences

Monitoring biomarkers related to inflammation and oxidative stress is critical in dogs because parvovirus causes both inflammatory and antioxidant alterations. The aim of this study was to investigate inflammatory and antioxidant changes caused by canine parvoviral enteritis to better understand the oxidative stress process related to this disease. Thus, the total thiol, native thiol, disulfide, and ischemia-modified albumin levels of Canine parvovirus infected symptomatic puppies and healthy puppies were examined. Using the results of complete blood counts, the blood serum thiol-disulfide homeostasis and ischemia modified albumin levels of the puppies with Canine parvoviral enteritis (n = 65) and the healthy …

Phenotypic And Functional Characterization Of Bovine Adipose-Derived Mesenchymal Stromal Cells, Vitali V. Maldonado, Sriya Pokharel, Jeremy G. Powell, Rebekah M. Samsonraj Dr.

Animal Science Faculty Publications and Presentations

Background: Mesenchymal stem cells (MSCs) are increasingly trialed in cellular therapy applications in humans. They can also be applied to treat a range of diseases in animals, particularly in cattle to combat inflammatory conditions and aging-associated degenerative disorders. We sought to demonstrate the feasibility of obtaining MSCs from adipose tissue and characterizing them using established assays. Methods: Bovine adipose MSCs (BvAdMSCs) were isolated using in-house optimized tissue digestion protocols and characterized by performing a colony formation assay, cell growth assessments, cell surface marker analysis by immunocytochemistry and flow cytometry, osteogenic and adipogenic differentiation, and secretion of indoleamine 2,3-dioxygenease (IDO). Results: …

Growing South Dakota (Spring 2024), College Of Agriculture, Food And Environmental Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

[Page] 3 Empowering the Next Generation of Agriculture
/="/">[Page] 5 Celebration of Faculty Excellence
/="/">[Page] 7 Judging Teams Provide Connection, Critical Skills
/="/">[Page] 11 Melanie Caffe: SDSU Oat Breeder Finds Motivation in Making a Difference for Farmers
/="/">[Page] 13 2024 CAFES Outstanding Seniors
/="/">[Page] 14 SDSU Celebrates Students Accepted to Veterinary Schools through Stethoscope Ceremony"
/="/">[Page] 15 New Researchers in CAFES
/="/">[Page] 17 Hitting the Mark – Shooting Sports Driving Growth in SDSU Extension 4-H Program
/="/">[Page] 19 A New Century Leads to a New Barn
/="/">[Page] 20 CAFES News & …

Pilot Study: Effects Of Whole Body Vibrational Therapy On Equine Epaxial Muscle Soreness, Riley Leibeck

Undergraduate Honors Thesis Projects

Whole body vibrational therapy (WBV) is well-studied in people, but there is a paucity of research of its effect on horses. It is suggested that WBV use in horses increases performance, aids in recovery, and stimulates nerves, bones, and muscles in ways that normal exercise does not. The purpose of this pilot study was to determine if frequent WBV therapy sessions affect back soreness in horses using pressure algometry. Most sporthorses will experience back soreness in their careers, and it is regarded as one of the most common causes of poor performance in equine athletes. Five horses were measured for …

Extending Knowledge On Biosecurity In Small-Scale And Backyard Systems In The United States, Juliette Di Francesco, Amber Itle, Craig Mcconnel, Ragan Adams, Roselle Busch, Richard Van Vleck Pereira, Terry W. Lehenbauer, Beatriz Martínez-López, Alda F. A. Pires

Journal of Extension

The number of small-scale and backyard operations has increased in the United States during the past decade, but there is currently a lack of outreach efforts and readily-available educational materials targeting these farming systems. We developed a webinar series on biosecurity to provide training for small-scale and backyard producers, and training tools that can be used by local veterinarians and extension educators to disseminate knowledge and consistent recommendations more effectively. Fewer people attended the webinars than registered, suggesting a gap between interest in biosecurity and commitment to the topic. Participants in the webinar series reported a high level of satisfaction …

Identification Of Novel Small Molecule Inhibitors Of Twin Arginine Translocation (Tat) Pathway And Their Effect On The Control Of Campylobacter Jejuni In Chickens, Loïc Deblais, Mary Drozd, Anand Kumar, Janet Antwi, James Fuchs, Rahul Khupse, Yosra A. Helmy, Gireesh Rajashekara

School of Veterinary and Biomedical Sciences: Faculty Publications

Introduction: Control of Campylobacter from farm to fork is challenging due to the frequent emergence of antimicrobial-resistant isolates. Furthermore, poultry production systems are known reservoirs of Campylobacter. The twinarginine translocation (Tat) pathway is a crucial bacterial secretion system that allows Campylobacter to colonize the host intestinal tract by using formate as the main source of energy. However, Tat pathway is also a major contributing factor for resistance to copper sulfate (CuSO₄).

Methods: Since mammals and chickens do not have proteins or receptors that are homologous to bacterial Tat proteins, identification of small molecule (SM) inhibitors …

Can Steam Be Usable As A "Plus" For Ventilation Shutdown?, A. V. Mendoza, S. Weimer, Z. Williams

Poultry Science Faculty Publications and Presentations

The American Veterinary Medical Association (AVMA), preferred depopulation methods (i.e., foam, containerized gassing, and mechanical methods) can be challenging when depopulating cage and aviary commercial laying hen houses for multiple reasons. When preferred methods are not feasible or resources are unavailable, ventilation shutdown plus (VSD+) heat and/or carbon dioxide (CO₂) is approved for emergency situations. Both recognized “pluses” work but can have issues as VSD+ heat typically causes a decrease in environmental humidity and can affect PVC structures, while CO₂ can be a human safety concern and has procurement problem during emergencies. …

Isothiocyanates Potentiate Tazemetostat-Induced Apoptosis By Modulating The Expression Of Apoptotic Genes, Members Of Polycomb Repressive Complex 2, And Levels Of Tri-Methylating Lysine 27 At Histone 3 In Human Malignant Melanoma Cells, Ioannis Anestopoulos, Ioannis Paraskevaidis, Sotiris Kyriakou, Lambrini E. Giova, Dimitrios T. Trafalis, Sotiris Botaitis, Rodrigo Franco, Aglaia Pappa, Mihalis L. Panayiotidis

School of Veterinary and Biomedical Sciences: Faculty Publications

In this study, we utilized an in vitro model consisting of human malignant melanoma as well as non-tumorigenic immortalized keratinocyte cells with the aim of characterizing the therapeutic effectiveness of the clinical epigenetic drug Tazemetostat alone or in combination with various isothiocyanates. In doing so, we assessed markers of cell viability, apoptotic induction, and expression levels of key proteins capable of mediating the therapeutic response. Our data indicated, for the first time, that Tazemetostat caused a significant decrease in viability levels of malignant melanoma cells in a dose- and time-dependent manner via the induction of apoptosis, while non-malignant keratinocytes were …

Comparison Of Milk Microbiota Between Healthy And Mastitic Cows, Sibel Kizil, Fatma Esin Aydin, Cansu Önlen Güneri̇, Ufuk Ülker, Gürol Emekdaş, İbrahim Basmaci, Serkan Erat, Rıza Durmaz, Efsun Melike Çeçen, Asya Kazan

Turkish Journal of Veterinary & Animal Sciences

Mammary gland infections occur due to bacterial changes in the mammary tissue. Studies conducted in recent years have reported variations in the most common bacteria differ according to geographical locations. California mastitis test (CMT), somatic cell count (SCC), and aerobic colony count (ACC) analyses were performed on approximately 50 mL of hygienically collected raw milk samples. Raw milk was also subjected to conventional bacteriological isolation and identification. Bacterial diversity and rates in raw milk were compared through metagenome analysis. Two samples, one from healthy milk and another from subclinical milk with mastitis, were independently tested to determine whether there were …

Determination Of Antibiotic Resistance In Salmonella Typhimurium And Salmonella Kentucky Serotypes Of Animal Origin Using Conventional And Molecular Methods, Zeynep Şik, Mehmet Akan

Turkish Journal of Veterinary & Animal Sciences

The high incidence of multidrug-resistant Salmonella Typhimurium and Salmonella Kentucky isolates is a concern for human and animal health. This study aimed to investigate the antibiotic resistance determinants of a total of 150 S. Typhimurium and S. Kentucky isolates obtained from cows, calves, lambs, and poultry. Salmonella isolates were tested against 13 different antimicrobials using the Kirby-Bauer disc diffusion method, and genotypic antimicrobial resistance determinants were investigated by polymerase chain reaction. Significant differences were detected among serovars for gentamicin, streptomycin, ampicillin, sulfonamide, nalidixic acid, ciprofloxacin, and tetracycline resistance, with the rates of resistance to these antibiotics being determined to be …

The Effect Of Artificial Insemination Catheters Covered With Protective Sheaths On Conception Rates In Heifers, Berrak Işık Soytürk, Hüseyin Erdem

Turkish Journal of Veterinary & Animal Sciences

Artificial insemination is a biotechnological method widely practiced in cattle, first introduced in 1912. The present study investigated the effect of pierceable plastic sheaths used during artificial insemination of Holstein heifers on conception rates. A total of 110 heifers aged 15–18 months, detected to be in estrus based on observation, were included in the study. These heifers were randomly divided into two equal groups. The experimental group (n = 55) underwent insemination using an insemination catheter covered with a disposable, pierceable plastic sheath on day 0. Conversely, the control group (n = 55) underwent insemination using the standard conventional technique. …

The Effect Of Housing Environment (Deep Litter With Or Without Access To Different Plant Species Outdoor) On Welfare And Behavior Across Two Strains Of Laying Hens, Brian Tainika, Ahmet Şekeroğlu, Ahmet Akyol, Samet Hasan Abaci, Fatih Mehmet Gür

Turkish Journal of Veterinary & Animal Sciences

The impact of housing environment and strain on welfare and behavior of laying hens was the focus of this study. Lohmann LSL Classic (W) and Lohmann Sandy (S) were assessed under deep litter without outdoor access (DL), deep litter with access to outdoor pens covered with either Mentha piperita (MP), Petroselinum crispum (PC) or Medicago sativa (MS). Duration of tonic immobility, feather condition, footpad dermatitis, and temperatures (comb, breast region, footpad surface, and rectal) were determined at 31, 42, and 52 weeks of age. Hen`s behaviors were observed at 32, 42, and 52 weeks of age. Blood parameters were assessed …

Determination Of Some Environmental Factors On Milk Yield Traits And Milk Components In Simmental Cows, Onur Şahi̇n, Mehmet İhsan Soysal, Eser Kemal Gürcan

Turkish Journal of Veterinary & Animal Sciences

The aim of the study was to determine the effects of various environmental factors on milk yield and milk components in Simmental cows. In the present study, 33,813 milk yield records from 1631 cows and milk samples from 233 cows were used for milk component analysis. Lactation milk yield (LMY) and 305-day yield (305-DMY) were the milk yield characteristics studied. Environmental factors considered for milk yield characteristics included province, calving year, calving month, parity, age, and lactation length. Milk components analyzed were fat percentage (FP), protein percentage (PP), lactose percentage (LP), somatic cell count (Log10SCC), and dry matter (DM). Environmental …

Investigation Of Molecular Detection Rate And Associated Risk Factors Of Psittacine Beak And Feather Disease Virus In Psittaciformes In Iran, Mojtaba Khosravi, Shoreh Alian Samakkhah, Rahem Khoshbakht

Turkish Journal of Veterinary & Animal Sciences

Psittacine beak and feather disease virus (PBFDV) is a significant viral pathogen affecting the development of beak and feather cells, leading to feather abnormalities in avian species. This study aimed to investigate the molecular detection rate of PBFDV among Psittaciformes in Iran and to evaluate the influence of factors such as sex, species, season, and bird origin on PBFDV prevalence. Feather samples were collected from 1335 Psittaciformes, including Agapornis roseicollis, Pyrrhura molinae, Myiopsitta monachus, Aratinga solstitialis, Nymphicus hollandicus, Psittacula krameri, Psittacus erithacus, Poicephalus senegalus, Eos bornea, and Agapornis fischeri, and subjected to polymerase chain reaction (PCR) for PBFDV detection. The …

Experimental Sars-Cov-2 Infection Of Elk And Mule Deer, Stephanie M. Porter, Airn E. Hartwig, Helle Bielefeldt-Ohmann, Jeffrey M. Marano, J. Jeffrey Root, Angela M. Bosco-Lauth

United States Department of Agriculture Wildlife Services: Staff Publications

To assess the susceptibility of elk (Cervus canadensis) and mule deer (Odocoileus hemionus) to SARS-CoV-2, we performed experimental infections in both species. Elk did not shed infectious virus but mounted low-level serologic responses. Mule deer shed and transmitted virus and mounted pronounced serologic responses and thus could play a role in SARS-CoV-2 epidemiology.