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Veterinary Medicine

2017

Chulalongkorn University Theses and Dissertations (Chula ETD)

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Full-Text Articles in Medicine and Health Sciences

Difference Of Some Spermatozoa And Seminal Plasma Proteins In Good And Poor Freezability Boar Ejaculates, Janyaporn Rungruangsak Jan 2017

Difference Of Some Spermatozoa And Seminal Plasma Proteins In Good And Poor Freezability Boar Ejaculates, Janyaporn Rungruangsak

Chulalongkorn University Theses and Dissertations (Chula ETD)

The present study was performed to determine the differences of some seminal plasma proteins, i.e., glutathione peroxidase 5 (GPX5) and fibronectin 1 (FN1), and some spermatozoa proteins, i.e., triosephosphate isomerase (TPI) and ACRBP (acrosin binding protein), in the boar semen having good and poor freezability. The study was conducted by including 38 ejaculates in seminal plasma study and 32 ejaculates from spermatozoa study from 27 boars (Duroc=13, Landrace= 8, Yorkshire= 6). The semen was split into two portions. The first portion was centrifuged to separate the pellet of sperm from the seminal plasma. The samples were kept at −80 °C …


Microfluidics-Based Single Cell Isolation And Trapping Of Canine Cutaneous Mast Cell Tumor Cells, Dettachai Ketpun Jan 2017

Microfluidics-Based Single Cell Isolation And Trapping Of Canine Cutaneous Mast Cell Tumor Cells, Dettachai Ketpun

Chulalongkorn University Theses and Dissertations (Chula ETD)

In this research, the primary objective was to develop a microfluidic platform utilized for the size-based single cell sorting of canine cutaneous mast cell tumor (MCT) cells which were categorized into 4 groups; I, II, III and IV, upon their individual sizes ranged from 5-9, 10-14, 15-19, and equal to or over than 20 mm respectively. And the secondary aim was to establish the microfluidic-based entrapping microdevice which had a capacity to ensnare single MCT cells into its triangular microwell array at the ratio of one cell per one microwell. The study consequence consistently indicated the accomplishment of device developments. …


Development Of Inactivated Mycoplasma Gallisepticum Vaccine In Chickens, Arithat Limsatanun Jan 2017

Development Of Inactivated Mycoplasma Gallisepticum Vaccine In Chickens, Arithat Limsatanun

Chulalongkorn University Theses and Dissertations (Chula ETD)

Mycoplasma gallisepticum (MG) is the respiratory pathogen causing chronic respiratory disease (CRD) in poultry. More importantly, MG infection affects the economic losses of poultry industry due to decrease egg production and carcass quality. There are several procedures for MG monitoring and several commercial vaccines to prevent and control the MG infection. In Thailand, MG infection has been the one of major problems of poultry industry. The objectives of this study were to investigate the different molecular techniques for MG monitoring in the poultry farms and to prepare the inactivated vaccine or bacterin with Thai MG strain. There were 3 experiments …


The Role Of Triarylmethane-34 On Potassium Channel Kca3.1 In Doxorubicin-Induced Feline Kidney Cell Line, Paralee Nantarakchaikul Jan 2017

The Role Of Triarylmethane-34 On Potassium Channel Kca3.1 In Doxorubicin-Induced Feline Kidney Cell Line, Paralee Nantarakchaikul

Chulalongkorn University Theses and Dissertations (Chula ETD)

Study involved with potassium channel KCa3.1 blocker (triarylmethane-34; TRAM-34) in doxorubicin (DOX)-induced feline kidney cells was performed. The study was divided into two parts. In part I, subtoxic dose of TRAM-34 in feline kidney cell lines was studied to determine the cytotoxicity of TRAM-34 in feline kidney cells by cytotoxicity assay. In part II, feline kidney cell lines were incubated with appropriate dose and time of TRAM-34 pretreatment for 24 h or 30 min and post-treatment for 24 h condition in DOX-induced cell toxicity. Cytotoxicity assay, apoptosis and necrosis assay and KCa3.1 protein expression were measured. The cytotoxicity results indicated …


Serological Status Of Pcv2-Infected Swine Herds, Cherdpong Phupolphan Jan 2017

Serological Status Of Pcv2-Infected Swine Herds, Cherdpong Phupolphan

Chulalongkorn University Theses and Dissertations (Chula ETD)

This study aimed to determine the dynamics of serological and virological profiles against Porcine Circovirus type 2 (PCV2) infection in Thai swine herds using the in-house indirect ELISA and real-time PCR techniques. A total of 10 swine herds in Thailand were divided into two groups according to their clinical history. Group A (n=5) had clinical signs of PCV2, and was routinely vaccinated by PCV2 vaccines with production loss more than 5%. Group B (n=5) had no clinical signs of PCV2 with production loss less than 5%. Group B consisted of two subgroups: PCV2-vaccinated herds (B-Vac, n=2) and non-vaccinated herds (B-non-Vac, …


Development Of Dna Vaccine Against Porcine Epidemic Diarrhea Virus, Gun Temeeyasen Jan 2017

Development Of Dna Vaccine Against Porcine Epidemic Diarrhea Virus, Gun Temeeyasen

Chulalongkorn University Theses and Dissertations (Chula ETD)

Porcine epidemic diarrhea (PED) is a devastating enteric disease mainly affected to the sucking piglets which causing the severe economic losses in many countries worldwide including Thailand. To date, there have no satisfied commercial vaccine for PED. The clustering system based on the spike gene demonstrated 2 variant of PEDV, classical and pandemic variant, which the difference of these variants may be affected to the protective immunity between them. The objectives of this study were to investigate the genetic diversity of S gene of PEDV in Thailand and evaluate the efficacy of DNA vaccine which developed from Thai PEDV isolate. …


Dual Infection Between A Thai Isolate Highly Pathogenic Porcine Reproductive And Respiratory Syndrome Virus And Pandemic H1n1swine Influenza Virus In Weanling Pigs, Nattaphong Sangpratum Jan 2017

Dual Infection Between A Thai Isolate Highly Pathogenic Porcine Reproductive And Respiratory Syndrome Virus And Pandemic H1n1swine Influenza Virus In Weanling Pigs, Nattaphong Sangpratum

Chulalongkorn University Theses and Dissertations (Chula ETD)

After an introduction of pandemic H1N1 swine influenza virus (pdmH1N1 SIV) in the Thai swine farms, mild clinical outcome is observed and its role in porcine respiratory disease complex (PRDC) is questionable. A highly pathogenic porcine reproductive and respiratory syndrome virus (HP-PRRSV) has become endemic in the Thai swine farms. This study was conducted to determine the pathogenicity of the pdmH1N1 SIV when co-infected with a HP-PRRSV. Thirty-two weanling pigs from a free PRRSV, SIV, porcine circovirus type 2 (PCV-2) and Mycoplasma spp. commercial farm were randomly divided into 4 groups: Negative, PRRSV, SIV and Co-infection groups. Pigs in PRRSV …


Detection And Distribution Of Enterotoxin And Adhesin Genes Of Staphylococcus Pseudintermedius Isolated From Dog, Human, And Environment, Nathita Phumthanakorn Jan 2017

Detection And Distribution Of Enterotoxin And Adhesin Genes Of Staphylococcus Pseudintermedius Isolated From Dog, Human, And Environment, Nathita Phumthanakorn

Chulalongkorn University Theses and Dissertations (Chula ETD)

To obtain the information of virulence factors associated with Staphylococcus pseudintermedius pathogenicity, host survival and adaptation, the study of staphylococcal enterotoxin (SE) genes and cell wall-associated (CWA) protein genes in S. pseudintermedius isolates from dogs, humans, and environment were performed. Human methicillin-resistant Staphylococcus pseudintermedius (MRSP) harbored the hightes number of SE genes at 12 out of 17 genes compared to those from dogs at 5 and environmental isolates at 3 gene types. For CWA protein genes or S. pseudintermedius surface proteins (sps), there was no an easy and fast method to detect them. Therefore, this study develop the multiplex PCR …


Monitoring Of Antibiogram And Resistance Gene Profiles Among Escherichia Coli In Pig Production System, Kittitat Lugsomya Jan 2017

Monitoring Of Antibiogram And Resistance Gene Profiles Among Escherichia Coli In Pig Production System, Kittitat Lugsomya

Chulalongkorn University Theses and Dissertations (Chula ETD)

The antimicrobial resistant (AMR) bacteria in pig farms have been believed as an important source in food chain with public health concern. While some studies suggested transmission of AMR from pigs to humans may occur, but there was still needing to combine high resolution genomic data analysis with systematically collected epidemiological evidence to reconstruct patterns of AMR transmission between pigs and humans. The objectives of this study were to determine the occurrence and characterization the AMR phenotypes against 18 antimicrobials in pig producing system in both cross-sectional from fattening and longitudinal studies from newborn to slaughtering pigs and to evaluate …


Involucrin Expression In Three-Dimentional Cell Culture And Prognostic Parameters Of Canine Cutaneous Squamous Cell Carcinoma (Scc) In Canine Patients And In Ultraviolet Radiation Induced Cultured Cells, Nongnut Assawawongkasem Jan 2017

Involucrin Expression In Three-Dimentional Cell Culture And Prognostic Parameters Of Canine Cutaneous Squamous Cell Carcinoma (Scc) In Canine Patients And In Ultraviolet Radiation Induced Cultured Cells, Nongnut Assawawongkasem

Chulalongkorn University Theses and Dissertations (Chula ETD)

The objectives of this study are 1) to demonstrate the involucrin (INV) expression and prognostic parameters in normal skin and cutaneous squamous cell carcinoma (CSCC), 2) to develop the artificial epidermis in dog and 3) to study the effect of INV expression on pathogenesis of ultraviolet radiation induced CSCC in dog.The first experiment is to determine the protein expression by Immunofluorescence technic (IFC) and mRNA expression of INV,Cytokeratin 10 (CK10), Ki67 and p53 normal skin(n=6) and CSCC (n=6) in dog.The protein expression pattern was demonstrated that INV and CK10 were positive in intra-cytoplasmic pattern in nucleated epidermis. While, intra-nuclear pattern …


Identification Of Porcine Circovirus Type 3 (Pcv3) In Thailand And Its Associated Syndrome, Roongtham Kedkovid Jan 2017

Identification Of Porcine Circovirus Type 3 (Pcv3) In Thailand And Its Associated Syndrome, Roongtham Kedkovid

Chulalongkorn University Theses and Dissertations (Chula ETD)

Porcine circovirus type 3 (PCV3) is a recently identified swine virus with currently unknown pathogenesis. To date, PCV3 has been found in many countries, indicating the wide spread of the virus. Therefore, there is an urgent need to clarify the detrimental role of PCV3. To better understand how PCV3 might influence the pig industry, various perspectives in swine production cycle should be considered. In this study, firstly, PCV3 was identified for the first time in Thailand. The study also showed that PCV3 has existed in the Thai pig population as early as 2005, suggesting that the virus might have long …


Genetic Characterization Of S1 Gene Of Infectious Bronchitis Virus Isolated From Chickens In Thailand During 2014-2016, Sirorat Munyahongse Jan 2017

Genetic Characterization Of S1 Gene Of Infectious Bronchitis Virus Isolated From Chickens In Thailand During 2014-2016, Sirorat Munyahongse

Chulalongkorn University Theses and Dissertations (Chula ETD)

Infectious bronchitis (IB), caused by infectious bronchitis virus (IBV), is a highly contagious respiratory disease in chickens, causing significant economic losses in poultry industry worldwide. IBV has a high frequency of genetic mutation and recombination in its genome, particularly in the S1 gene, resulting in the emergence of several new IBV variants. This potentially affects the effectiveness of currently used IBV vaccine. Therefore, the continuous monitoring of the currently circulating IBV strains is essential. In this study, the genetic characteristic of IBV strains circulating in Thai chicken flocks during 2014-2016 was investigated by analysis of the complete S1 gene. A …


Immunophenotype, Molecular Diagnosis, Minimal Residual Disease, And Multidrug Resistance Protein Expression In Modified Cop, Modified Chop And Rescue Protocols Of Treated Canine Lymphomas, Sirintra Sirivisoot Jan 2017

Immunophenotype, Molecular Diagnosis, Minimal Residual Disease, And Multidrug Resistance Protein Expression In Modified Cop, Modified Chop And Rescue Protocols Of Treated Canine Lymphomas, Sirintra Sirivisoot

Chulalongkorn University Theses and Dissertations (Chula ETD)

Multicentric lymphoma is the most common hematopoietic tumors in dogs. Both B- or T-lymphocyte clones can originate to lymphoma. A gold standard method to differentiate each lymphocyte lineage is immunohistochemistry (IHC) by detecting specific proteins of B and T cell. A protein marker for T and B cells is CD3 and CD79a, respectively. However, another pan pre B-cell marker is Pax5 or B-cell specific activator protein. It is more specific and sensitive than CD79a because it expresses only in B-cell lymphoma cases. The first purpose of this research was to 1) determine Pax5 expression in canine lymphomas by IHC and …


Oral Fluid Samples Used For Prrs Diagnosis And Management, Yonlayong Woonwong Jan 2017

Oral Fluid Samples Used For Prrs Diagnosis And Management, Yonlayong Woonwong

Chulalongkorn University Theses and Dissertations (Chula ETD)

Porcine reproductive and respiratory syndrome (PRRS) is an economically significant swine disease having a negative impact to the swine industry worldwide. Appropriate management strategies and diagnostic tests are crucial to successfully control PRRS virus (PRRSV). However, the application for oral fluid-based diagnosis has not been evaluated in the Thai farms previously. In this study, pre-extraction methods of oral fluids were evaluated to improve the PCR product yielded. Moreover, the oral fluids utilization for PRRSV monitoring during the gilt acclimatization and farrowing to nursery period was investigated. The results demonstrated that increasing sample volume might be a suitable simple method for …


Quantitative Microbial Risk Assessment Of Streptococcus Suis Serotype 2 From Pork Consumption, Phrutsamon Wongnak Jan 2017

Quantitative Microbial Risk Assessment Of Streptococcus Suis Serotype 2 From Pork Consumption, Phrutsamon Wongnak

Chulalongkorn University Theses and Dissertations (Chula ETD)

This study aimed at determine prevalence and concentration of Streptococcus suis contamination in pork production chains as well as evaluate the health risk attributable to S. suis serotype 2 from pork consumption in Thailand. In total, 492 pig-to-pork and 480 environmental samples were collected from 4 pork production chains in Bangkok. Besides, total 1,036 pork samples were also collected from traditional and modern trades in Chiangmai, Phayao, Nan, Khonkaen, Mukdahan, Saraburi, Nakhonpathom, and Phang-nga provinces. All samples were enumerated using plate count method. S. suis isolates were confirmed by detecting cps2-j gene, followed by Quellung reaction. A stochastic risk assessment …


Quantitative Microbial Risk Assessment Of Klebsiella Pneumoniae To Ciprofloxacin From Pork In Bangkok, Rodjana Namkratok Jan 2017

Quantitative Microbial Risk Assessment Of Klebsiella Pneumoniae To Ciprofloxacin From Pork In Bangkok, Rodjana Namkratok

Chulalongkorn University Theses and Dissertations (Chula ETD)

Risk estimates are evaluated by using quantitative microbial risk assessment (QMRA) which is a scientific tool. The methodology can be applied to model of human adverse health effect associated with K. pneumoniae and ciprofloxacin-resistant K. pneumoniae (CRKP) from pork consumption in Bangkok. This study had four phases which were 1) sample collection, 2) bacterial isolation and enumeration, 3) antimicrobial susceptibility test and 4) risk assessment. A total of 378 pork samples from fresh markets were collected from six Bangkok areas which contained Central Bangkok, Eastern Bangkok, Northern Bangkok, Southern Bangkok, Upper Thonburi and Lower Thonburi. The mean prevalence of K. …


Application Of Autologous Blood-Derived Platelet-Rich Fibrin For Periodontitis Treatment In Dogs, Chatvadee Kornsuthisopon Jan 2017

Application Of Autologous Blood-Derived Platelet-Rich Fibrin For Periodontitis Treatment In Dogs, Chatvadee Kornsuthisopon

Chulalongkorn University Theses and Dissertations (Chula ETD)

Periodontitis is one of the most prevalent inflammatory oral diseases in dog. Non-surgical managements are conventionally performed to obtain healthy oral status. With progressive periodontitis, advanced periodontal surgery and also dental extraction become warranted with major disadvantages of trauma, bleeding, prolonged anesthetic time and hospitalization, and wound healing impairment. Hence, use of platelet-rich fibrin has been studied and considered one of the novel approaches to augment in periodontitis management. This study aimed to evaluate the efficacy of autologous blood-derived platelet-rich fibrin in an aspect of periodontitis treatment in a canine models. In this study, the experiment was done at maxillary …


Fatigue Study Of Cancellous And Cortical Stainless Steel Screws Used With Polymethymethacrylate And The Sop Plate System For The Immobilisation Of Vertebral Fracture And Luxation In Canine Cadavers, Mingrath Mekavichai Jan 2017

Fatigue Study Of Cancellous And Cortical Stainless Steel Screws Used With Polymethymethacrylate And The Sop Plate System For The Immobilisation Of Vertebral Fracture And Luxation In Canine Cadavers, Mingrath Mekavichai

Chulalongkorn University Theses and Dissertations (Chula ETD)

Globally, vertebral fracture and luxation (VFL) are one of the most common neurological injuries in dogs and cats. The standard care for vertebral body stabilisation of canine VFL are screws with polymethylmethacrylate (PMMA) and the string of pearls (SOP) plate system fixation. The VFL with implants are usually exposed to force in a repetitive or cyclic loading fashion. Indeed, stress on the implant cyclically at a load significantly less than its ultimate tensile strength can cause fatigue failure, one of the major causes of implant breakage. This study aims to compare the failure mode of four different implants using a …


Intra-Articular Characteristics Of Dogs With Medial Patellar Luxation, Sethapong Jahrupatrakorn Jan 2017

Intra-Articular Characteristics Of Dogs With Medial Patellar Luxation, Sethapong Jahrupatrakorn

Chulalongkorn University Theses and Dissertations (Chula ETD)

The study investigated the relationship of degree of patellar luxation of dogs with joint radiography, intra-articular degenerative change of the stifle with medial patellar luxation (MPL), histopathologic change, and biomarker index. Thirty-eight stifles were divided into four groups: normal stifle joints (4), grades 2 (13), 3 (12), and 4 (9) MPL. Demographic data, lameness score, and degree of patellar luxation of all dogs were assessed and recorded. Radiographs were taken to assess osteophyte formation. Synovial tissue was collected for microscopic evaluation differential cell counts, and cytokines measurement. Stifle joints with MPL were scored during surgical correction. All observed data were …


Comparative Surgical Treatment Of Elongated Soft Palate In Brachycephalic Dogs Using The Ultrasonic Scalpel And The Conventional Incisional Techniques, Sunisa Thunyodom Jan 2017

Comparative Surgical Treatment Of Elongated Soft Palate In Brachycephalic Dogs Using The Ultrasonic Scalpel And The Conventional Incisional Techniques, Sunisa Thunyodom

Chulalongkorn University Theses and Dissertations (Chula ETD)

Brachycephalic airway obstruction syndrome (BAOS) is life threatening condition in brachycephalic dogs. Surgical correction of primary disorders including elongated soft palate and stenotic nares is indicated in all cases. Aim of this study was to compare the use of the ultrasonic scalpel with the conventional incision technique for staphylectomy. Twenty dogs with BAOS enrolled in this study were randomly assigned into conventional (N=10) or ultrasonic group (N=10). Respiratory score was evaluated and recorded prior to surgery. Staphylectomy time and bleeding were recorded. Respiratory, postoperative complication and pain scores were evaluated and recorded at days 1, 3, 7, 14 and 28 …


Potentials Of Ivabradine To Improve Cardiac Function In Dogs With Naturally Occurring, Asymptomatic Degenerative Mitral Valve Disease, Prapawadee Pirintr Jan 2017

Potentials Of Ivabradine To Improve Cardiac Function In Dogs With Naturally Occurring, Asymptomatic Degenerative Mitral Valve Disease, Prapawadee Pirintr

Chulalongkorn University Theses and Dissertations (Chula ETD)

The main hypothesis of the present study is that ivabradine (1.0 mg/kg, orally, twice daily) can reduce heart rate (HR), myocardial oxygen consumption (MVO2) and improve cardiac function in dogs with degenerative mitral valve disease (DMVD) partly due to a reduction of cardiomyocyte apoptosis. In order to test the hypothesis, this study was divided into three parts. The first part aimed to determine the appropriate single oral dose of ivabradine for reduction of HR and MVO2 as assessed by rate-pressure product (RPP= HR x systolic blood pressure). Once the appropriate dose was achieved, the second part was conducted to investigate …


Effects And Mechanisms Of Porcine Reproductive And Respiratory Syndrome Virus (Prrsv) Type 1 And Type 2 On The Permeability And Viability Of Porcine Endometrial Epithelial Cells, Dran Rukarcheep Jan 2017

Effects And Mechanisms Of Porcine Reproductive And Respiratory Syndrome Virus (Prrsv) Type 1 And Type 2 On The Permeability And Viability Of Porcine Endometrial Epithelial Cells, Dran Rukarcheep

Chulalongkorn University Theses and Dissertations (Chula ETD)

Both PRRSV types 1 and 2 revealed the sign of reproductive disorders associated with a lesion at implantation sites. Impairment of maternal glandular endometrium cell integrity and function by PRRSV infection may impact a proper nourishing fetus. This research was aimed to examine the effects of PRRSV type 1 and type 2 directly on the viability and barrier function of the endometrium using porcine glandular endometrial epithelial cell culture (PEG). The comparison of the route and the strain of PRRSV infection coinciding with their virulent in reproductive epithelia were considered. PEG cells isolated from the 4-6 months old PRRSV-free-herd gilts …


Effects Of Short-Term Growth Hormone Administration On Plasma Leptin Levels In Normal And Diet-Induced Obesity Rats, Sutharinee Likitnukul Jan 2017

Effects Of Short-Term Growth Hormone Administration On Plasma Leptin Levels In Normal And Diet-Induced Obesity Rats, Sutharinee Likitnukul

Chulalongkorn University Theses and Dissertations (Chula ETD)

Obesity has related to the alteration of hormonal profiles, i.e. growth hormone (GH), insulin and leptin. Because of the pleiotropic mechanisms of GH, it plays important roles both in the pathophysiological mechanisms and the therapeutic hormonal supplementation, which probably affected plasma leptin. The present research aimed firstly to demonstrate the effect of short-term GH administration on plasma leptin in 3 conditions; basal, meal-induced and fasting condition, from the rats with different adipose tissue mass. Secondly, to investigate short-term effect of GH on insulin sensitivity and body adiposity in control, diet resistant (DR) and diet-induced obesity (DIO) rats. In this regard, …


Comparative Study Of Urinary N-Acetyl-Beta-D-Glucosaminidase Levels, Urinary Glycosaminoglycans And Plasma Glycosaminoglycans Levels In Cats With Feline Idiopathic Cystitis, Jeeranan Benjasiriwan Jan 2017

Comparative Study Of Urinary N-Acetyl-Beta-D-Glucosaminidase Levels, Urinary Glycosaminoglycans And Plasma Glycosaminoglycans Levels In Cats With Feline Idiopathic Cystitis, Jeeranan Benjasiriwan

Chulalongkorn University Theses and Dissertations (Chula ETD)

Comparative study was conducted to measure urinary N-acetyl-β-glucosaminidase (NAG), urinary glycosaminoglycans (GAGs) and plasma glycosaminoglycans (GAGs) in cats with feline idiopathic cystitis (FIC). A standard questionnaire was designed to gather information for all cats including signalment, characteristics, environment, type of food and management of the cats’ litter box to evaluate the risk factors for developing FIC. Blood and urine samples were collected from 19 clinically normal cats and 19 aged and sex matched cats with FIC. Concentration of urinary NAG, urinary GAGs and plasma GAGs were measured by colorimetric method. NAG index and GAGs-to-creatinine ratio were calculated. The results demonstrated …


Development Of Multiplex Rt-Pcr And Metagenomic Analyses Of Canine Infectious Respiratory Disease Complex Associated Viruses In Dogs, Chutchai Piewbang Jan 2017

Development Of Multiplex Rt-Pcr And Metagenomic Analyses Of Canine Infectious Respiratory Disease Complex Associated Viruses In Dogs, Chutchai Piewbang

Chulalongkorn University Theses and Dissertations (Chula ETD)

Canine infectious respiratory disease complex (CIRDC) viruses have been detected in dogs with respiratory illness. The CIRDC is associated with multiple factors depending on host susceptibility, environment and pathogens. Canine influenza virus (CIV), canine parainfluenza virus (CPIV), canine distemper virus (CDV), canine respiratory coronavirus (CRCoV), canine adenovirus type 2 (CAdV-2) and canine herpesvirus 1 (CaHV-1), are all associated with the CIRDC. Environmental factors serve as the one key point for infection. The transmission route can be via community-acquired infection (CAI) or hospital-associated infection (HAI), but the variable factors within these two routes are not well described. Moreover, novel pathogens that …


The Effects Of Hydroxyethyl Starch (Hes) On Quality Of Equine Sperm Following Cold Storage And Cryopreservation, Ornwanya Nuchanart Jan 2017

The Effects Of Hydroxyethyl Starch (Hes) On Quality Of Equine Sperm Following Cold Storage And Cryopreservation, Ornwanya Nuchanart

Chulalongkorn University Theses and Dissertations (Chula ETD)

This study aimed at examining the effects of different concentrations of hydroxyethyl starch (HES) on quality of equine sperm following cold storage and cryopreservation. In experiment 1, the semen was collected from 6 stallions (3 replicates). The semen was diluted with extender for cold storage containing different concentrations of HES (2.5%, 5%, 10% and 15%). Extender without HES (0% HES) served as a control group. The temperature of extended semen was gradually decreased to 4 ºC. The quality of sperm in terms of progressive motility and viability was evaluated after cold storage for 6, 24 and 48 hours. This study …


Establishment Of Cardiac Lineage From Rabbit Embryonic And Induced Pluripotent Stem Cells, Praopilas Phakdeedindan Jan 2017

Establishment Of Cardiac Lineage From Rabbit Embryonic And Induced Pluripotent Stem Cells, Praopilas Phakdeedindan

Chulalongkorn University Theses and Dissertations (Chula ETD)

Rabbit is a promising model for studying myocardial infarction as several physiological and pathological conditions are resemble to humans. However, the information on establishment of rabbit pluripotent stem cells (PSC) and differentiation potential especially cardiac differentiation in this species has been limited. This research aimed at establishing and examining in vitro cardiogenesis of rabbit embryonic stem cells (ESC) and rabbit induced pluripotent stem cells (iPSC). In experiment 1, four cell lines of ESC derived from blastocyst stage embryos were cultured and characterized for their pluripotency in terms of gene and immunohistochemistry. They exhibited normal karyotypes (n=44). Embryoid body (EB) formation …


Identification Of Serum Proteomic Profile In Canine Lymphomas, Piyanoot Fonghem Jan 2017

Identification Of Serum Proteomic Profile In Canine Lymphomas, Piyanoot Fonghem

Chulalongkorn University Theses and Dissertations (Chula ETD)

Lymphoma is the third most commonly diagnosed, malignant hematopoietic tumor in dogs, and it is similar to human non-Hodgkin's lymphoma. Proteomics refer to the large-scale study of proteins, including their structures as well as their complex protein mixtures. It also involves identifying the changes in the protein isoforms and posttranslational modifications expressed by genetic material under defined specific conditions. This study was aimed at identifying the serum proteomic profiles of canine lymphoma compared with healthy dogs by using Tandem Mass Tag (TMT). Blood samples from twenty lymphoma and four healthy dogs were collected. All cases were categorized according to the …


The Effect Of Dexmedetomidine In Combination With Pethidine On Isoflurane Minimum Alveolar Concentration For Canine Antinociception, Kanjana Vinyunantakul Jan 2017

The Effect Of Dexmedetomidine In Combination With Pethidine On Isoflurane Minimum Alveolar Concentration For Canine Antinociception, Kanjana Vinyunantakul

Chulalongkorn University Theses and Dissertations (Chula ETD)

The effects of dexmedetomidine combined with pethidine on the minimum alveolar concentration (MAC) of isoflurane and cardiorespiratory variables in dogs were evaluated in thirty client-owned, healthy adult male dogs scheduled for castration at the Small Animal Teaching Hospital, Faculty of Veterinary Science, Chulalongkorn University. The dogs were allocated into Group 1 (n=6) receiving sterilized water for injections (placebo) as a negative control group, Group 2 (n=12) receiving 5 µg kg-1 of dexmedetomidine IM as a positive control group, and, Group 3 (n=12) receiving 5 µg kg-1 of dexmedetomidine and 5 mg kg-1 of pethidine IM. At 15 minutes after injection …


Computed Tomography Appearance Of Intra-Thoracic Lymph Nodes In Normal Cats, Ninlawan Thammasiri Jan 2017

Computed Tomography Appearance Of Intra-Thoracic Lymph Nodes In Normal Cats, Ninlawan Thammasiri

Chulalongkorn University Theses and Dissertations (Chula ETD)

The study of the appearance of intra-thoracic lymph nodes in the cat observed on the computed tomography which divided into 3 parts as following; the feline soft cadaver, clinically normal cats and the retrospective study of the feline patients. The result showed that the computed tomographic images of feline soft tissue cadavers could not detected any intra-thoracic lymph nodes. However, based on the study on 30 clinically normal cats which were mixed breed, age ranging from 4 months to 11 years old, body weight between 1.5 to 5.7 kilogram, 12 male cats (6 castrated) and 18 female cats (10 spayed) …