Veterinary Medicine Commons^™

Susceptibility Of Wild Canids To Sars-Cov-2, Stephanie M. Porter, Aim E. Hartwig, Helle Bielefeldt-Ohmann, Angela M. Bosco-Lauth, J. Jeffrey Root

United States Department of Agriculture Wildlife Services: Staff Publications

We assessed 2 wild canid species, red foxes (Vulpes vulpes) and coyotes (Canis latrans), for susceptibility to SARS-CoV-2. After experimental inoculation, red foxes became infected and shed infectious virus. Conversely, experimentally challenged coyotes did not become infected; therefore, coyotes are unlikely to be competent hosts for SARS-CoV-2.

Throughout the COVID-19 pandemic, multiple instances of natural infections with SARS-CoV-2 have been reported in pet dogs, likely after exposure to an infected human (1–3). Domestic dogs appear to be minimally susceptible to SARS-CoV-2, as indicated by experimental inoculations resulting in reverse transcription PCR–positive samples and low titer antibody responses but no clinical …

Exploring The Value Of A Global Gene Drive Project Registry, Riley I. Taitingfong, Antoinette J. Piaggio, Cinnamon S. Bloss, Et Al.

United States Department of Agriculture Wildlife Services: Staff Publications

Recent calls to establish a global project registry before releasing any gene-drive-modified organisms (GDOs) have suggested a registry could be valuable to coordinate research, collect data to monitor and evaluate potential ecological impacts, and facilitate transparent communication with community stakeholders and the general public. Here, we report the results of a multidisciplinary expert workshop on GDO registries convened on 8–9 December 2020 involving 70 participants from 14 countries. Participants had expertise in gene drive design, conservation and population modeling, social science, stakeholder engagement, governance and regulation, international policy, and vector control; they represented 45 organizations, spanning national and local governmental …

Bacteriophage Nanocarrier As A Crispr-Cas System Delivery Vector For Re-Sensitization Of Blactx-M-M Extended-Spectrum Β-Lactamase-Producing Escherichia Coli From Companion Animals, Naiyaphat Nittayasut

Chulalongkorn University Theses and Dissertations (Chula ETD)

Increased prevalence of blaCTX-M third-generation cephalosporin (3GC)-resistant uropathogenic Escherichia coli (UPEC) in small animals indicates a crisis of an antimicrobial resistance (AMR) situation in veterinary medicine and public health. CRISPR-Cas9 system delivered by bacteriophage is an alternative tool for re-sensitization of AMR bacteria. This study aimed to characterize canine and feline 3GC-resistant UPEC in term of the genetic features and to find predominant blaCTX-M variants to be targets of CRISPR-Cas9 delivered by a bacteriophage nanocarrier in a re-sensitization model. Seven blaCTX-M variants, including group 1 (blaCTX-M-55, -15 and -173) and group 9 (blaCTX-M-14, -27, -65 and -90), were detected in …

Multidisciplinary Engagement For Fencing Research Informs Efficacy And Rancher-To-Researcher Knowledge Exchange, Matthew Hyde, Stewart W. Breck, Alex Few, Jared Beaver, Joshua Schrecengost, Jim Stone, Cameron Krebs, Russell Talmo, Kari Eneas, Rae Nickerson, Kyran E. Kunkel, Julie K. Young

United States Department of Agriculture Wildlife Services: Staff Publications

Across much of the Western United States, recovery of large carnivore populations is creating new challenges for livestock producers. Reducing the risks of sharing the landscape with recovering wildlife populations is critical to private working lands, which play an vital role in securing future energy, water, food, and fiber for an ever-expanding human population. Fencing is an important mitigation practice that many ranchers, land managers, and conservationists implement to reduce carnivore-livestock conflict. While fencing strategies have been reviewed in the literature, research seldom incorporates knowledge from the people who utilize fencing the most (i.e., livestock producers). Incorporating producers and practitioners …

Conserving Endangered Black-Footed Ferrets: Biological Threats, Political Challenges, And Lessons Learned, Travis M. Livieri, Steven C. Forrest, Marc R. Matchett, Stewart Breck

United States Department of Agriculture Wildlife Services: Staff Publications

There may be few stories in the annals of wildlife management that are as dramatic as the near demise and comeback of the black-footed ferret (Mustela nigripes). Endemic only to North America, this charming little carnivore found only in the continent’s central grasslands was hardly known to science until the mid-20th century. By then, vast colonies of the prey it depended on for food and shelter, the prairie dog (Cynomys spp.), had been wiped out through disease (sylvatic plague) and an agricultural industry with little tolerance for burrowing and grazing rodents. At its low point, the species’ …

The Impact Of China's Recent Economic Growth Has Had On The Environment: Challenging The Assumption That In Order To Protect The Environment We Must Sacrifice Development., Mckay Overton

Fall Student Research Symposium 2021

Pollution is a major issue in China effecting both the health and environment of the Chinese people. Since its rapid rise in economic and technological development, China has become one of the global leaders in business and technology. Conversely, China has also become one of the global leaders in the amount of pollution it creates. Every day, large amounts of coal and fossil fuels are burned. There are few regulations to protect the environment, and even fewer that are actually enforced. High levels of pollution cause high rates of cancer as well as high rates of lung and heart issues …

Host Range, Biology, And Species Specificity Of Seven-Segmented Influenza Viruses—A Comparative Review On Influenza C And D, Chithra Sreenivasan, Zizhang Sheng, Dan Wang, Feng Li

Maxwell H. Gluck Equine Research Center Faculty Publications

Other than genome structure, influenza C (ICV), and D (IDV) viruses with seven-segmented genomes are biologically different from the eight-segmented influenza A (IAV), and B (IBV) viruses concerning the presence of hemagglutinin–esterase fusion protein, which combines the function of hemagglutinin and neuraminidase responsible for receptor-binding, fusion, and receptor-destroying enzymatic activities, respectively. Whereas ICV with humans as primary hosts emerged nearly 74 years ago, IDV, a distant relative of ICV, was isolated in 2011, with bovines as the primary host. Despite its initial emergence in swine, IDV has turned out to be a transboundary bovine pathogen and a broader host range, …

Cyathostomin Resistance To Moxidectin And Combinations Of Anthelmintics In Australian Horses, Ghazanfar Abbas, Abdul Ghafar, John Hurley, Jenni Bauquier, Anne Beasley, Edwina J. A. Wilkes, Caroline Jacobson, Charles El-Hage, Lucy Cudmore, Peter Carrigan, Brett Tennent-Brown, Charles G. Gauci, Martin K. Nielsen, Kristopher J. Hughes, Ian Beveridge, Abdul Jabbar

Veterinary Science Faculty Publications

BACKGROUND: Cyathostomins are the most important and common parasitic nematodes of horses, with > 50 species known to occur worldwide. The frequent and indiscriminate use of anthelmintics has resulted in the development of anthelmintic resistance (AR) in horse nematodes. In this study we assessed the efficacy of commonly used anthelmintics against cyathostomins in Australian thoroughbred horses.

METHODS: Two drug efficacy trials per farm were conducted on two thoroughbred horse farms in the state of Victoria, Australia. In the first trial, the horses on Farm A were treated with single and combinations of anthelmintics, including oxfendazole (OFZ), abamectin (ABM), abamectin and morantel …

Impact Of Fish Oil On Intestinal Permeability, Inflammation, And Performance In Swine, Anthony Fernando Alberto

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Our research examined the effects of fish oil supplementation on intestinal permeability, systemic inflammation and performance in piglets. An lipopolysaccharide (LPS) challenge was done to stimulate the synthesis and release of the cytokines, in an effort to mimic the immune response that piglets would have when facing stress or pathogen challenge. Fish oil increased feed intake but did not affect growth when compared to control. Total fatty acid digestibility increased by 6% when fish oil was included in the diet. Also, we observed a 16% increase on 16-carbon fatty acids digestibility. Fish oil did not affect the plasma …

Prevalence Of Shiga Toxin-Producing Escherichia Coli In Buffaloes On Smallholdings In Coastal Area In Bangladesh, Md Shahriar Mannan, Farzana Rabbi, Md Gholam Kibria, Sirazul Islam, Md. Bayzid, Zamila Bueaza Bupasha, Md Zohorul Islam, Md Samun Sarker, Paritosh Kumar Biswas

The Thai Journal of Veterinary Medicine

Shiga toxin-producing Escherichia coli (STEC) is an important causal agent of food borne diseases. Although the presence of STEC has been reported in cattle, goat, and sheep in previous studies in Bangladesh, there is seemingly no information on sorbitol non-fermenting STEC (SN-F STEC) carriage in buffalo. We aimed to assess the prevalence of SN-F STEC and to identify common virulence genes in SN-F STEC strains from apparently healthy buffaloes on smallholdings in coastal area in Bangladesh. Total 308 buffaloes on smallholdings in Patenga and Anwara Upazila, Chattogram division, Bangladesh were randomly sampled by collecting a swab from the recto-anal junction …

Successful Management Of Feline Gastrointestinal Eosinophilic Sclerosing Fibroplasia With Mycophenolate Mofetil And Prednisolone Following Surgical Resection In A Cat, Min-Soo Kim, Keon Kim, Gwang-Hyun Lee, Cheol-Hyun Kim, Seo-Lin Jang, Guk-Hyun Suh, Chang-Min Lee

The Thai Journal of Veterinary Medicine

A 1-year-old castrated male Ragdoll who showed a series of vomiting and had reduced appetite presented to a local animal hospital. Hyperthermia and tachypnea were observed in physical examination, and leukocytosis was detected in hematological examination. Abdominal ultrasonography revealed an intramural mass with irregular echogenicity extending from the pylorus to the duodenum and loss of intestinal wall layer with regional lymph node enlargement. After exploratory laparotomy for biopsy and symptomatic alleviation, histopathological evaluation revealed densely infiltrated eosinophils within the branching and anastomosing trabecular pattern of collagen by several spindle-shaped cells. Finally, the patient was diagnosed with feline gastrointestinal eosinophilic sclerosing …

A Case Of Acquired Idiopathic Megaoesophagus In A Dog: The Use Of Sildenafil As Treatment, Yeremia Yobelanno Sitompul, Willy Moris Nainggolan, Bradley O’Hagan

The Thai Journal of Veterinary Medicine

Acquired idiopathic megaoesophagus in dogs is rarely found in Indonesia. In this case report, a dachshund dog was presented with a history of vomiting after eating. Clinical examination, complete blood count, kidney, and liver tests identified only minor dehydration. On observation of the dog after eating, the sign reported as vomiting was confirmed as regurgitation. Radiography and contrast studies identified a significantly dilated oesophagus. With an absence of other clinical abnormalities, the dog was diagnosed with idiopathic megaoesophagus and prescribed treatment with sildenafil twice daily at 0.75mg/kg for five days, along with postural management of feeding. Treatment resulted in cessation …

Dietary Supplementation Of Bacillus-Based Probiotics On The Growth Performance, Gut Morphology, Intestinal Microbiota And Immune Response In Low Biosecurity Broiler Chickens, Mohammad Arif, Md Akteruzzaman, Tuhin-Al-Ferdous, Sk Shaheenur Islam, Bidhan Chandra Das, Mahbubul Pratik Siddique, S M Lutful Kabir

Faculty, Staff and Student Publications

A feeding trial was conducted to evaluate the effects of Bacillus-based probiotics on growth performance, intestinal histo-morphology, gut microbial population and immune response in broilers. A total of 2000 Hubbard Classic day-old chicks were randomly enrolled in four experimental groups and 4 replicates of 500 birds in each group, and reared for 35 days under a low- level of biosecurity measures. The trial groups were assigned treatment-1 (T1): basal diet(control), treatment-2 (T2): basal diet plus Bacillus licheniformis (DSM17236), treatment-3 (T3): basal diet plus Bacillus subtilis (PB6), and treatment-4 (T4) basal diet plus 4% Flavomycin. All four groups were fed …

Pets And Problems: Exploring Community Patterns In Calls For Animal Services, Paige Dejarnett

Sociology and Criminology Undergraduate Honors Theses

Pets have historically been viewed as family members, children, property, or economic resources. However, research surrounding animal maltreatment has expressed this issue as an individually-based problem, rather than a community-based phenomenon. Correlations have been found between animal cruelty, antisocial behaviors, and future interpersonal violence, whether this correlation be a predictive relationship, or a resultant relationship. Past research has also found correlations between animal treatment practices and the rural/urban differences of this behavior. However, there are many community-based indicators that have not been explored to understand the distribution of animal maltreatment. This study aims to explore these ideas by analyzing the …

Management Strategies For Improving Survival Of Piglets From Hyperprolific Sows, R.N. Kirkwood, P. Langendijk, J. Carr

The Thai Journal of Veterinary Medicine

In efforts to improve profitability, sows have been subject to ongoing selection for larger litters. The current dogma is that larger litters improve sow productivity. This review, however, will question the validity of this assumption. It is inescapable that very large litters will have longer farrowing durations, lower average and more variable birth weights, and the sows will have insufficient teats available to feed their piglets. This is a recipe for increased piglet mortality with associated ethical considerations. This review will examine methods employed to address these challenges posed by larger litters in order to improve piglet survival. Producers, however, …

The Influence Of Intranasal Peste Des Petits Ruminants Vaccine Application Methods On The Induction Of Immune Responses In Goats: Clinicopathological And Immunohistochemical Findings, Chukwunonso Kenechukwu Ezeasor, Shodeinde Vincent Shoyinka, Benjamin Obukowho E Mikpe, Ikechukwu John Udeani, Nick Nwankpa, Charles Sanne Bodjo, Mohd Yusoff Sabri

The Thai Journal of Veterinary Medicine

Intranasal administration of peste des petits ruminants (PPR) vaccine may induce mucosal and systemic immune responses in goats but little is known about the influence of the vaccine application methods. This study reports the influence of two different intranasal vaccine application methods on the immune responses in goats following intranasal PPR vaccination. Twenty, male west African dwarf goats were divided into 4 groups (n=5). Groups A and B were vaccinated intranasally (IN) with live attenuated PPR vaccine (Nigeria 75/1) by either nasal dropper (Group A) or nasal spray (Group B) methods and compared with the subcutaneous route of vaccination (Group …

Genetic Characterization Of Banteng (Bos Javanicus) Populations In Thailand For Conservation, Sirinart Chaichanathong, Worata Klinsawat, Manakorn Sukmak, Apichaya Sakulthai, Worawidh Wajjwalku, Supaphen Sripiboon, Nongnid Kaolim, Seree Nakbhun, Burachat Tunpradit, Tarasak Nipanunt, Wanlaya Tipkantha, Marnoch Yindee, Nikorn Thongtip

The Thai Journal of Veterinary Medicine

Banteng (Bos javanicus), an endangered, wild ungulate, plays a major role in seed dispersal and as a prey animal in Thailand. The population of wild banteng is threatened by poaching and habitat losses. Captive breeding management of banteng has been established and reintroduction of banteng has been successful in some areas. This study investigated the genetic variation of wild and captive banteng, based on mitochondrial DNA (mtDNA) and the Y-chromosome. The mtDNA analysis revealed three novel maternal haplotypes. The Y-chromosome analysis showed two Y-chromosome haplotypes based on the SRY region in the Thai population. This region may be useful as …

Diagnostic Utility Of Basal Serum T4 And Tsh Concentrations In Dogs With Hypothyroidism Confirmed By Tsh Stimulation Test, Minkeun Shin, Dohee Lee, Taesik Yun, Yoonhoi Koo, Byeong-Teck Kang, Mhan-Pyo Yang, Hakhyun Kim

The Thai Journal of Veterinary Medicine

The objective of this study was to evaluate the diagnostic performance of a basal serum thyroxine (T4) and thyrotropin (TSH) combination test for the diagnosis of canine hypothyroidism in clinical practice. It was hypothesized that the usefulness of basal T4 and TSH combination test in dogs with suspected non-thyroidal illness syndrome would be different with that in previous studies. The data of this study were searched for dogs who underwent both TSH stimulation test and basal serum T4 and TSH combination test. Forty-four cases were classified into either of three groups (hypothyroid, intermediate, or euthyroid) according to the results of …

Evaluating The Effects Of Prunus Laurocerasus Seed, Fruit And Leaf Extracts On Hyperglycaemia, Insulin Sensitivity And Anti-Oxidative Activities In Experimental Diabetes In Rat, Hamit Uslu, Gözde Atila Uslu

The Thai Journal of Veterinary Medicine

Although insulin resistance is widely accepted as one of the main characteristics of type 2 diabetes, there are studies suggesting that there is a link between the development of type 1 diabetes and insulin resistance in recent years. Therefore, in this study, it was aimed to investigate the effects of Prunus laurocerasus (PL) seeds, fruit and leaf extracts on hyperglycemia, adiponectin and irisin levels which are known to be effective in the mechanisms of insulin sensitivity, and oxidative stress in rats with type 1 diabetes. The study groups were as follows: normoglycaemic (NC), diabetic control (DC), diabetic + seed extract …

Genetic Correlations Between Gestation Length And Litter Traits Of Sows, Rawiwan Bumpenkul, Nalinee Imboonta

The Thai Journal of Veterinary Medicine

The aim of this study was to estimate genetic correlations between gestation length (GL) total number of piglets born (TB), number of piglets born alive (BA) and number of stillborn piglets (SB). Data of Landrace (LR), Large White (LW) and Duroc (DR) sows from one nucleus farm were analyzed. Data used in this study were 28,809 records of sows farrowing during 2006 to 2019. The factors effecting traits were examined by using GLM procedure in SAS program. Variance and covariance components were estimated using AIREMLF90 program. The model was applied with fixed effects for contemporary group, breed and parity, and …