Veterinary Medicine Commons^™

Detection And Phylogenetic Analysis Of Porcine Epidemic Diarrhea Virus Based On The Orf3 Gene In Pigs In The North Of Vietnam, Tran Duc Hoan, Doan Thi Thao, Nguyen Thi Huong Giang, Nguyen Thi Thu Huyen, Nguyen Thi Thu Huyen

The Thai Journal of Veterinary Medicine

To identify further the infectivity, genetic diversity and molecular characteristics of the porcine epidemic diarrhea virus (PEDV). 286 samples of the intestinal tissue of pigs with severe diarrhea were assessed from 5 provinces in the north of Vietnam. The full-length ORF3 gene of 20 representative field strains from 36 farms in 5 provinces was sequenced and analyzed. The prevalence of PEDV was 90.56% and was detected in 259 of 286 samples, with 94.44% (34 of 36) of pig farms harboring the disease. Based on the phylogenetic analysis of the ORF3 genes, our isolates all fell into group G2 (variants) and …

Investigation Of The Microstructure And Mechanical Properties Of The Domestic Cat’S Paw Pads, Ye Mei

The Thai Journal of Veterinary Medicine

Domestic cats have a biological function such as cushioning when they are jumping or walking which is mainly due to the biological coupling system formed in the long-term evolution process of nature, including the trunk-leg-paw pad structure. Among them, the paw pad, as the only part of the body that directly contacts with the ground in the process of movement, plays a key role in its biological function. Hence, in order to clarify the micro structure, mechanical properties and functional characteristics of the paw pad and reveal the relationship between it and the domestic cat’s biological function, this paper has …

Hepatotoxicity In Acute And Subchronic Oral Gavage Of Ethanolic Extract Of Christia Vespertilionis (L.F.) Bakh. F. Leaf In Male Sprague Dawley Rats, Nurul S.A.S., Nurul S.A.S., Hazilawati H., Rosly S.M., Farhan Hanif M.R., Abdullahi A., Shanmugavelu S., Noordin M.M., Mazlina M., Azrina A., Norhaizan M.E.

The Thai Journal of Veterinary Medicine

Increased interest in Christia vespertilionis (L.f.) Bakh. f. leaves is due to their real potential of their health-enhancing properties. This study aims to evaluate the possible in vivo toxicity in 14-day acute and 90-day subchronic oral toxicity of ethanolic extract Christia vespertilionis (L.f.) Bakh. f. in male Sprague Dawley rats. In the acute study, the rats were divided into control, 5% DMSO (vehicle) and 2000 mg/kg groups. For the subchronic toxicity study, a total of 30 rats were divided into five groups consisting of a control, 5% DMSO (vehicle), low dose (75 mg/kg), medium dose (125 mg/kg) and high dose …

Recombinant Scfv Inhibit Newcastle Disease Virus In Vitro Infection, Sanfeng Peng, Lintian Yu, Ying He, Dongyang Chen, Li Wang, Xueliang Zhou, Long Xie, Yangqing Lu

The Thai Journal of Veterinary Medicine

Newcastle disease (ND) is an avian respiratory disease caused by the Newcastle disease virus (NDV) and is prevalent worldwide but lacks a reliable treatment to surmount it. The single-chain fragment variable (scFv) antibody is the smallest functional unit in an immunoglobulin retaining antigen-binding activities. Previous studies have demonstrated that by acting against the NDV phosphoprotein, scFv is capable of neutralizing the virus in infected cells. In this study, two anti-NDV scFv expressing cassettes driven by CAG promoter and EF1α promoter, respectively, were constructed using the piggyBac transposon plasmid backbone. The recombinant plasmids were transfected into DF-1 and 293T cells and …

Optimal Infusion Rate Of Hypertonic Saline To Encephalic Vessel Vasodilatation Using Magnetic Resonance Imaging In Normovolemic Dogs, Yoshiki Murakami, Kenji Tsukano, Haruyuki Hirata, Hiroshi Koie, Kazuyuki Suzuki

The Thai Journal of Veterinary Medicine

This study aimed to investigate, using magnetic resonance imaging, whether continuous hypertonic saline (HSS) infusion induces a superior vasodilating effect on the encephalic vessels compared to bolus infusion in dogs. The relative cross-sectional area of superior sagittal sinus increased to 1.96±0.09 and 1.69±0.31 times of the pre-value in the continuous and bolus groups, respectively, at t=30 min (p<0.001). However, the relative cross-sectional area of superior sagittal sinus was larger in the continuous group than that in the bolus group (p<0.001). The results suggest that continuous infusion of HSS might be superior to bolus infusion in inducing vasodilatation of the encephalic circulation.

Immunochromatographic Test (Ict) For The Detection Of Antibody Against Alv-J, Guihua Wang, Yanming Wang, Ziqiang Cheng

The Thai Journal of Veterinary Medicine

ALV-J is an important pathogen in the poultry industry in China. In this study, we developed an immunochromatographic test (ICT) assay for the detection of antibody against of ALV-J to evaluate ALV-J infection. Gp85 protein of ALV-J was employed as a capture antigen. Antigen-antibody reaction was detected by either colloidal-gold conjugated gp85 protein or monoclonal antibody of ALV-J. The high consistency of results in ICT and ELISA indicated that the ICT is reliable. This suggests that the gp85-based ICT can be used as a rapid on-site diagnostic method of ALV-J.

Feline Inductive Odontogenic Tumor In A Young Cat, Chakkarin Satthathum, Sunee Kunakornsawat, Chaiyan Kasorndorkbua

The Thai Journal of Veterinary Medicine

A 6-month-old, 4.45 kg, intact, male domestic shorthair cat was presented with a gingival mass located on the left rostral maxilla and second left upper premolar tooth. Intraoral x-ray of the left rostral maxilla revealed left maxilla bone lysis with a unilocular cystic lesion. The cytology result revealed an epithelial cell tumor .A left rostral maxillectomy was performed and the tumor was submitted for histological assessment .Histopathological diagnosis of the tissue revealed a feline inductive odontogenic tumor .There was no evidence of tumor recurrence 24 months after surgery.

Gangliosidoses In Cats, Latticha Pluemhathaikij, Waruntip Bunyaputikul, Katriya Chankow, Benchaphorn Limcharoen, Nardtiwa Chaivoravitsakul, Rampaipat Penchome, Sawang Kesdangsakonwut, Kasem Rattanapinyopituk, Wijit Banlunara

The Thai Journal of Veterinary Medicine

Two 3-month-old, male, domestic short hair, cats of the same litter were presented to the small animal teaching hospital with the clinical sign of head tremor for 2 weeks. Three months later, the clinical sign had worsened. Both kittens had loss of balance and showed intention tremor. Physical examination revealed hypertelorism, depressed bridge of the nose and back pain. Radiography showed shortened cervicothoracic vertebral bodies. Both kittens died at 8 and 9 months of age, case no.1 and 2 respectively. Both carcasses were submitted for necropsy. Both brains were grossly normal. The costal cartilages of both cats were deformed into …

Anesthetic Effects Of Dexmeditomidine-Tiletamine/Zolazepam Combination In Cats Undergoing Ovariohysterectomy, Nunnapas Jiwlawat, Cholawat Pacharinsak, Sumit Durongphongtorn

The Thai Journal of Veterinary Medicine

Common injectable anesthetics in cats are alpha-2 receptor agonists and tiletamine/zolazepam. Xylazine shows higher rate of side effects because its lower specificity to alpha-2 receptors than dexmeditomidine. However, the use of drug combinations in cats is not much known. Therefore, alternative anesthetic combination should be investigated. Here, we examined the use of tiletamine/zolazepam with two doses of dexmedetomidine in cats. A total of 24 female cats, weight 3.05 ± 0.10 kg (mean ± SEM). Cats were randomly blinded given intramuscularly injection (IM) with either of such drug combination, representing dosage of low dose dexmedetomidine 7.5 μg/kg with tiletamine/zolazepam 3 mg/kg; …

Distribution Of Salmonella Spp. And Serovars Isolated From Captive Reptiles In Four Zoos Of The Zoological Park Organization, Thailand, Between 2017 And 2018, Sompoth Weerakhun, Paweena Kongsanan, Wichit Kongkham

The Thai Journal of Veterinary Medicine

Salmonellosis is the main reason for food borne diseases in many countries globally and it has been found that reptiles are carriers of the disease. Therefore, this study was performed to determine the distribution of Salmonella spp. and their serovars from reptiles in zoos in Thailand between 2017 and 2018. A total of 257 reptile samples were collected from four zoos which are Dusit (128 samples), Chiangmai (32 samples), Songkhla (34 samples) and Nakhonratchasima (63 samples). Salmonella was isolated and identified, serotyping of those isolates was investigated using a panel of Salmonella antisera and serotypes were characterized according to the …

Sporadic Worldwide “Clusters” Of Feed Driven Zilpaterol Identifications In Racing Horses: A Review And Analysis, Jacob Machin, Kimberly Brewer, Abelardo Morales Briceno, Clara Fenger, George Maylin, Thomas Tobin

Maxwell H. Gluck Equine Research Center Faculty Publications

Zilpaterol is a β2-adrenergic agonist medication approved in certain countries as a cattle feed additive to improve carcass quality. Trace amounts of Zilpaterol can transfer to horse feed, yielding equine urinary “identifications” of Zilpaterol. These “identifications” occur because Zilpaterol is highly bioavailable in horses, resistant to biotransformation and excreted as unchanged Zilpaterol in urine, where it has a 5 day or so terminal half-life.

In horses, urinary steady-state concentrations are reached 25 days (5 half-lives) after exposure to contaminated feed. Zilpaterol readily presents in horse urine, yielding clusters of feed related Zilpaterol identifications in racehorses. The first cluster, April …

Comparison Of Abdominal Computed Tomography To Ultrasound In The Diagnosis Of Canine Biliary Disease Manifesting As Acute Abdominal Signs, Shanna Christine Marroquin

Theses and Dissertations

Biliary diseases are uncommon, potentially fatal causes of acute abdomen in dogs. Little information is present comparing the performance of computed tomography (CT) to ultrasound in identifying canine biliary pathology. Thirty-five client-owned dogs presenting for acute abdomen signs received an abdominal ultrasound and contrast-enhanced abdominal CT. Two authors reviewed the randomized, anonymized CT and ultrasound studies. Twenty-eight dogs had biliary pathology and seven dogs serving as controls had no evidence of biliary disease. The final diagnoses of patients with biliary pathology included cholelithiasis, gallbladder mucoceles, cholangiohepatitis/cholangitis, extrahepatic biliary obstruction, gallbladder wall edema, gallbladder wall mass, and cystic mucosal hyperplasia. Computed …

Seasonal Variation And Tracking Of Climate Niche Of A Migratory Bird, Javier Gutiérrez Illán, Guiming Wang, D. Tommy King, Fred L. Cunningham

USDA Wildlife Services: Staff Publications

Migratory birds inhabit different areas during breeding and non-breeding seasons. Depending on the time of the year, they may utilize different resources available in seasonal habitats, but also are subjected to changing climate regimes during their annual life cycle. Migratory birds may adopt ecological niche tracking to cope with different environmental conditions between breeding and non-breeding grounds. The American White Pelican (Pelecanus erythrorhynchos, hereafter ‘AWPE’) is a short-distance migrant between the Gulf of Mexico coastal regions (nonbreeding grounds) and the Northern Great Plains (breeding grounds) of Canada and the US. The American White Pelican is a piscivore, feeding …

Barriers To Client Compliance And Understanding Of Heartworm Prevention In The Canine Patient, Emily Fischels

Honors College Theses

Dirofilaria immitis is a common and largely preventable mosquito-borne parasite that causes dirofilariasis, or heartworm disease, in a number of animal species. The necessity of heartworm prevention in the canine patient is undisputed and well-known among veterinary professionals, yet there are still many dogs not protected from this fatal parasite. Heartworm prevention traditionally requires a once-a-month administration of medication; therefore, its efficacy relies on owner compliance. The barriers to canines receiving heartworm prevention were assessed using a survey targeted at pet owners whose dogs have seen the veterinarian in the past year. The main barriers identified were inadequate client communication …

Characterization Of The Fecal Microbiome In Dogs Receiving Medical Management For Congenital Portosystemic Shunts, Nathan Squire

Masters Theses

Background: The GI microbiome has not been characterized in dogs being medically managed for congenital portosystemic shunts [CPSS].

Objectives: To characterize the fecal microbiome in a population of dogs being medically managed for CPSS.

Animals: 27 client-owned dogs.

Methods: Prospective cohort study enrollment of fecal samples was performed with follow-up data collected retrospectively. The overall fecal dysbiosis index [DI] and individual bacterial abundances were determined using real-time qPCR. Medical management, clinical findings, clinicopathologic, and outcome variables were collected, and logistic regression analyses were performed to evaluate associations between these variables and overall DI and bacterial abundances. Numerical variables were evaluated …

Relative Palatability And Efficacy Of Brodifacoum-25d Conservation Rodenticide Pellets For Mouse Eradication On Midway Atoll, Peter J. Kappes, Shane R. Siers, Israel L. Leinbach, Robert T. Sugihara, Wesley J. Jolley, Jonathan H. Plissner, Elizabeth N. Flint, Kelly L. Goodale, Gregg R. Howald

USDA Wildlife Services: Staff Publications

Invasive mice (Mus spp.) can negatively impact island species and ecosystems. Because fewer island rodent eradications have been attempted for mice compared to rats (Rattus spp.), less is known about efficacy and palatability of rodenticide baits for mouse eradications. We performed a series of bait acceptance and efficacy cage trials using a standard formulation of brodifacoum-based rodenticide on wild-caught mice from Sand Island, Midway Atoll, to help inform a proposed eradication there. Mice were offered ad libitum brodifacoum pellets along with various alternative food sources, and a “no choice” treatment group received only bait pellets. Mortality in the no choice …

Intercontinental Movement Of Highly Pathogenic Avian Influenza A(H5n1) Clade 2.3.4.4 Virus To The United States, 2021, Sarah N. Bevins, Susan A. Shriner, James C. Cumbee Jr., Krista E. Dilione, Kelly E. Douglass, Jeremy W. Ellis, Mary Lea Killian, Mia K. Torchetti, Julianna B. Lenoch

USDA Wildlife Services: Staff Publications

We detected Eurasian-origin highly pathogenic avian influenza A(H5N1) virus belonging to the Gs/GD lineage, clade 2.3.4.4b, in wild waterfowl in 2 Atlantic coastal states in the United States. Bird banding data showed widespread movement of waterfowl within the Atlantic Flyway and between neighboring flyways and northern breeding grounds.

Time Course Investigation Of The Dermal Leukocyte Response To Lipoteichoic Acid In Chickens, Ian Gilbert

Animal Science Undergraduate Honors Theses

Lipoteichoic acid (LTA) is component of the cell wall of Gram-positive bacteria that stimulates inflammation during bacterial infection. However, few studies have investigated the in vivo immune response to LTA, and none of the in vivo studies done have been performed in birds. For this project, the pulp (a skin-derivative) of growing feathers (GFs) of chickens were used as a test site to investigate the in vivo effects of intradermally injected LTA. In Study 1, the pulp of 12 GFs of 11-week-old Light-brown Leghorn (LBL) males were injected with 10 μL of differing concentrations of LTA (0.1, 1.0, 10, 100 …

The Impact Of The Covid-19 Pandemic On Antimicrobial Stewardship Practices And Their Effect On Veterinary Medicine, Erin N. Bradstreet

Honors College

Antimicrobials are essential in the treatment of diseases in both humans and animals, but antimicrobial resistance threatens their efficacy. As more microorganisms become resistant to an ever-growing list of antimicrobials, diseases that used to be simple to treat are becoming increasingly difficult to manage. The major factors contributing to antimicrobial resistance are overuse and misuse of antimicrobials. In order to combat the problem of resistance, antimicrobial stewardship programs that aim to improve antimicrobial prescribing and use practices are becoming increasingly widespread. These programs are quite common in human medicine, but the COVID-19 pandemic disrupted many aspects of life, including antimicrobial …

Liquid Chromatography With Tandem Mass Spectrometry Method Development For The Determination Of Β–Defensins In Bovine Milk, Symone T. Whalin

Masters Theses & Specialist Projects

Bovine mastitis, caused by a wide array of pathogens, results in a substantial economic loss for the dairy cattle livestock industry. β-defensins are a part of the bovine’s innate immune system and act as the first line of defense against mastitis. Only foundational research has been done on β-defensins’ ability to treat and prevent mastitis. There have been no analytical methods reported in the literature for analyzing β-defensins in bovine milk. This research aims to create an analytical approach to determine β-defensins in bovine milk. It is challenging to determine an analyte in a complex sample matrix, and milk is …