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Articles 331 - 360 of 2807
Full-Text Articles in Veterinary Medicine
Comparison Of An Intra-Articular Suture Technique And A Lateral Suture Technique In Toy Breed Dogs With Cranial Cruciate Ligament Rupture, Sirun Tuek-Um, Chaiyakorn Thitiyanaporn, Phitchaya Phongwirat, Naris Thengchaisri
Comparison Of An Intra-Articular Suture Technique And A Lateral Suture Technique In Toy Breed Dogs With Cranial Cruciate Ligament Rupture, Sirun Tuek-Um, Chaiyakorn Thitiyanaporn, Phitchaya Phongwirat, Naris Thengchaisri
The Thai Journal of Veterinary Medicine
Cranial cruciate ligament rupture (CCLR) can result in inflammation, pain, lameness and osteoarthritis. Because there is no isometric point for surgical stabilization for CCLR, the anatomical replacement of the ruptured cranial cruciate ligament with synthetic material may provide better outcomes. This retrospective study compared short-term post-operative outcomes between an intra-articular suture technique and a lateral suture technique for treating CCLR in toy breed dogs. Twenty dogs with unilateral CCLR were divided into two groups. The lateral suture technique was a lateral circumfabellar tibial suture with monofilament nylon and the intra-articular suture was performed by passing a suture through the femoral …
Effects Of Atipamezole And Flumazenil On Stress-Related Hormonal And Metabolic Responses In Cats Anesthetized With Medetomidine, Midazolam, Ketamine And Isoflurane Undergoing Ovariohysterectomy And Castration, Hirokazu Kamohara, Toshiko Kamohara, Yoshiaki Hikasa
Effects Of Atipamezole And Flumazenil On Stress-Related Hormonal And Metabolic Responses In Cats Anesthetized With Medetomidine, Midazolam, Ketamine And Isoflurane Undergoing Ovariohysterectomy And Castration, Hirokazu Kamohara, Toshiko Kamohara, Yoshiaki Hikasa
The Thai Journal of Veterinary Medicine
This study examined the post-operative effects of atipamezole (Ati) and flumazenil (Flu) on stress-related neurohormonal and metabolic responses in isoflurane-anesthetized cats premedicated with medetomidine, midazolam and ketamine and undergoing ovariohysterectomy or castration. Client-owned mixed-breed cats (n = 108) were treated with 50-μg/kg medetomidine and 0.5-mg/kg midazolam, followed by 5-mg/kg ketamine (MMK) intramuscularly (IM) and maintained under isoflurane anesthesia. The cats were divided into nine groups (six cats/group): control (saline IM), 50-μg/kg Flu IM or intravenously (IV), 100-μg/kg Ati IM or IV, 200-μg/kg Ati IM, 100-μg/kg Ati + 50-μg/kg Flu IM or IV and 200-μg/kg Ati + 50-μg/kg Flu IM. Five …
Complete Genome Sequence Of A Novel Recombinant Muscovy Duck Parvovirus Isolated In The Heilongjiang Province Of China, Jing Yang, Ming Li, Tianfei Yu
Complete Genome Sequence Of A Novel Recombinant Muscovy Duck Parvovirus Isolated In The Heilongjiang Province Of China, Jing Yang, Ming Li, Tianfei Yu
The Thai Journal of Veterinary Medicine
Muscovy duck parvovirus (MDPV) is fatal for young ducklings of less than 3 weeks of age and has caused severe economic loss in duck production in many countries and regions. We report here on a complete genome sequence of a recombinant MDPV strain YL08 isolated from an ill Muscovy duck in 2008 at Qiqihar, Heilongjiang province, China. This genome, MDPV YL08, was 5061 nucleotides long and retained the two ORFs, which are typical in the Parvovirinae family. The genome of YL08 strain has a putative recombination breakpoint on its VP1 gene. This study has helped our understanding of the genetic …
Indications For Canine Fecal Microbiota Transplantation, Kerong Li, Xiaoxiao Zhou, Zhijun Zhong, Haifeng Liu, Min Li, Guangneng Peng, Ziyao Zhou
Indications For Canine Fecal Microbiota Transplantation, Kerong Li, Xiaoxiao Zhou, Zhijun Zhong, Haifeng Liu, Min Li, Guangneng Peng, Ziyao Zhou
The Thai Journal of Veterinary Medicine
Fecal microbiota transplantation (FMT) is a novel method to treat intestinal and extraintestinal diseases by transplanting the microbiota in the feces of healthy animals into the gastrointestinal tracts of patients and reconstructing intestinal flora in the patients' intestine. In this article, we reviewed the recent studies of canine FMT focusing on its indications. FMT was proved effective to treat canine Clostridioides difficile infection (CDI), inflammatory bowel disease (IBD), canine parvovirus (CPV) diarrhea and acute diarrhea; upregulate the intestinal microbiota in dogs with acute hemorrhagic diarrhea syndrome (AHDS); and may have benefit for preventing canine post-weaning diarrhea. However, the specific FMT …
Transcutaneous Light Penetration Of Simultaneous Superpulsed And Multiple Wavelength Photobiomodulation Therapy In Living Dog Tissue, Somphong Hoisang, Suvaluk Seesupa, Supranee Jitpean, Naruepon Kampa
Transcutaneous Light Penetration Of Simultaneous Superpulsed And Multiple Wavelength Photobiomodulation Therapy In Living Dog Tissue, Somphong Hoisang, Suvaluk Seesupa, Supranee Jitpean, Naruepon Kampa
The Thai Journal of Veterinary Medicine
Photobiomodulation therapy (PBMT) is used as an adjunctive therapy for wound healing, pain relief and rehabilitation. The penetration of light to the target tissue is the crucial factor. The aim of this study was to investigate the potential penetration of simultaneous superpulsed and multiple wavelength (SPMW) PBMT on living tissue in dogs. Twenty client-owned dogs were anesthetized and underwent abdominal surgery. The PMBT device was set at 50 Hz and delivered light for 60 sec at different distances; at 0 cm (contact) and 1 cm tissue-device distance (non-contact). The power meter was placed and measured the mean output power (MOP) …
Investigation Of Bacterial Pathogens In Milk From Mastitic Dairy Cattle By Matrix-Assisted Laser Desorption Ionization-Time Of Flight Mass Spectrometry, Gokben Ozbey, Baris Otlu, Yusuf Yakupogullari, Betul Celik, Elif Seren Tanriverdi, Neslihan Kelestemur, Tarik Safak, Ali Risvanli, Anil Persad, Emma Sproston
Investigation Of Bacterial Pathogens In Milk From Mastitic Dairy Cattle By Matrix-Assisted Laser Desorption Ionization-Time Of Flight Mass Spectrometry, Gokben Ozbey, Baris Otlu, Yusuf Yakupogullari, Betul Celik, Elif Seren Tanriverdi, Neslihan Kelestemur, Tarik Safak, Ali Risvanli, Anil Persad, Emma Sproston
The Thai Journal of Veterinary Medicine
The scope of the present study was to assess the use of Matrix-Assisted Laser Desorption/Ionization-Time of Flight (MALDI-TOF) Mass Spectrometry (MS) as a quick technique for the identification of bacterial species in mastitis. In this study, milk samples from each udder quarter from a total of 250 dairy cattle were aseptically collected and tested. The samples were grouped into California Mastitis Test (CMT) positive, CMT negative and clinical mastitis. The samples were streaked on blood agar and the bacterial isolates were analysed using MALDI-TOF MS. Using MALDI-TOF MS, certain species such as Staphylococcus chromogenes (44/188, 23.4%), Aerococcus viridans (40/188, 21.3%) …
Inflammatory Mediator Gene Expression Of The Kidneys Induced By Daboia Siamensis Venom And Its Components, Suchitra Khunsap, Sunutcha Suntrarachun, Orawan Khow, Jureeporn Noiphrom
Inflammatory Mediator Gene Expression Of The Kidneys Induced By Daboia Siamensis Venom And Its Components, Suchitra Khunsap, Sunutcha Suntrarachun, Orawan Khow, Jureeporn Noiphrom
The Thai Journal of Veterinary Medicine
Phospholipase A2 (PLA2) and metalloprotease (MP) from Daboia siamensis (Ds) venom are believed to contribute to renal tissue toxicity. Imbalance of the cytokine system induced by snake envenomation causes tissue injury and cell damage which leads to acute toxic kidney injury. A better understanding of the pathological mechanism involved in renal injury after venom administration is needed. In the present study, we aimed to investigate inflammatory mediator genes (IL-2, IL-10, TNFα, IFN, and COX-2) in mouse kidney tissue after venom injection. Quantitative real time PCR was performed to detect the cytokine gene profiles. Beta actin was used as a house-keeping …
Therapeutic Potential Of Bulgarian Propolis Against Antibiotic-Resistant Salmonella Species, Manar M. Farouk, Amal El-Molla, Fayez A. Salib, Yousef A. Soliman, Mohamed Shaalan
Therapeutic Potential Of Bulgarian Propolis Against Antibiotic-Resistant Salmonella Species, Manar M. Farouk, Amal El-Molla, Fayez A. Salib, Yousef A. Soliman, Mohamed Shaalan
The Thai Journal of Veterinary Medicine
The emergence of multidrug-resistant (MDR) Salmonella spp. has increased the need for investigation of antimicrobial alternatives. Ethanolic extract of propolis (EEP) has been identified to have wide-ranging medical applications related to its antimicrobial activity. The current study aimed to identify the major chemical components of EEP with antibacterial effects, evaluate the antibacterial efficacy of EEP against MDR Salmonella spp. isolates, and further examine the therapeutic efficacy of EEP against MDR S. Enteritidis infected mouse model. Bulgarian propolis EEP was prepared by using ethanol based extraction method. The chemical composition of EEP was characterized using the gas chromatography-mass spectroscopy (GC-MS). The …
The Effect Of Recombinant Chimeric Swine Pkr-Apaf-1 Proteins On Viral-Load Reduction Of Prrs And Ped Alpha-Coronavirus Infected Cell Lines, Phong Vu Anh Tuan Vo, Thanaporn Lertsakchai, Sukeesom Jiramahasuwan, Achara Tawatsin, Athipoo Nuntaprasert
The Effect Of Recombinant Chimeric Swine Pkr-Apaf-1 Proteins On Viral-Load Reduction Of Prrs And Ped Alpha-Coronavirus Infected Cell Lines, Phong Vu Anh Tuan Vo, Thanaporn Lertsakchai, Sukeesom Jiramahasuwan, Achara Tawatsin, Athipoo Nuntaprasert
The Thai Journal of Veterinary Medicine
The PRRS virus and PED alpha-coronavirus are the two main pig pathogens in the world. The current strategies to control these diseases are inadequate. The recombinant chimeric swine PKR-Apaf-1 protein (rcPAP) consists of the Human Immunodeficiency Virus Trans-activator transcription (HIV-TAT) domain, the dsRNA-binding domain of porcine Protein kinase R (PKR) gene and the caspase recruitment domain (CARD) domain of porcine Apoptotic Protease-Activating Factor-1 (Apaf-1) gene. In general, the rcPAP can detect viral dsRNA in virally infected cells and induces apoptosis and kills the virus-infected cells. In this study, the reducing viral-load efficacy of rcPAP (produced from bacteria) against PRRS virrus …
Surveillance Of Zoonotic Brugia Pahangi In Monastery Cats, Samphran District, Nakhon Pathom, Thailand, Thanakorn Rawangchue, Nuttasiri Sripirom, Sivapong Sungpradit
Surveillance Of Zoonotic Brugia Pahangi In Monastery Cats, Samphran District, Nakhon Pathom, Thailand, Thanakorn Rawangchue, Nuttasiri Sripirom, Sivapong Sungpradit
The Thai Journal of Veterinary Medicine
The mosquito-borne filarial nematode parasites Brugia pahangi and B. malayi have been proposed as potential zoonotic pathogens, with dogs and cats being the main reservoir hosts. The monasteries where both stray and semi-domesticated animals live often serve as areas where humans are exposed to these reservoirs. In Thailand, the prevalence of B. pahangi, particularly in infected monastery cats, is underreported. In this study, we investigated B. pahangi prevalence in cats at 24 temples in the Samphran district, Nakhon Pathom province, central Thailand. In total, 196 blood samples were collected from the cats and examined using the hematocrit capillary tube technique. …
Shock Status And Anti-Shock Infusion Therapy In Canine Acute Spontaneous Babesiosis, Oksana Dubova, Lyudmila Kovalova, Anatolyi Dubovyi, Pavel Kovalov, Inna Chala
Shock Status And Anti-Shock Infusion Therapy In Canine Acute Spontaneous Babesiosis, Oksana Dubova, Lyudmila Kovalova, Anatolyi Dubovyi, Pavel Kovalov, Inna Chala
The Thai Journal of Veterinary Medicine
Canine babesiosis is a serious disease that is accompanied by the development of shock. The aim of the work was to establish shock, assess its degree, as well as to conduct a clinical trial of anti-shock infusion therapy. 100 dogs of different breeds, weighing 20–40 kg, aged 2–4 years, were involved. The studies used oscillometry (blood pressure, pulse rate), assessment of vascular-platelet hemostasis (platelet count, spontaneous aggregation ability), coagulogram (prothromine and activated partial thromboplastin time, fibrinogen), enzyme immunoassay (fibrin degradation products and D-dimer), biochemical (soluble fibrin-monomer complexes) and hemodynamic (circulating blood volume, hematocrit) methods of investigation. In dogs with acute …
Phylogenetic Positioning Of Listeria Ivanovii Identified In Aborted Sheep In Kars Region (Turkey), Dogan Akca, Fatih Buyuk, Elif Celik, Aliye Gulmez Saglam, Salih Otlu, Serpil Dag, Ozgur Celebi, Mustafa Reha Coskun, Eray Buyuk, Emin Karakurt, Mitat Sahin
Phylogenetic Positioning Of Listeria Ivanovii Identified In Aborted Sheep In Kars Region (Turkey), Dogan Akca, Fatih Buyuk, Elif Celik, Aliye Gulmez Saglam, Salih Otlu, Serpil Dag, Ozgur Celebi, Mustafa Reha Coskun, Eray Buyuk, Emin Karakurt, Mitat Sahin
The Thai Journal of Veterinary Medicine
This study aimed to investigate Listeria species in various samples taken from aborted sheep in Kars province and to determine the position of emerged strains in the phylogenetic tree. Milk (n= 229) and vaginal swab (n= 263) samples from aborted sheep and abomasum contents (n= 46) of aborted sheep fetuses were investigated by the culture and Polymerase Chain Reaction (PCR) methods. For the phylogenetic analysis of isolates, the 16S rRNA gene region was sequenced. In the culture, the Listeria agent was not isolated from any of the vaginal swabs or milk samples. Among the 46 fetal abomasum contents, a Listeria …
The Validation Of Haemagglutinin Inhibition Test For The Detection Of Antibodies Against Canine Influenza Virus In A Guinea Pig Serum Model, Ratanaporn Tangwangvivat, Supassama Chaiyawong, Nutthawan Nonthabenjawan, Kamonpan Charoenkul, Taveesak Janethanakij, Duangduen Prakairungnamthip, Wittawat Wechtaisong, Supanat Boonyapisitsopa, Napawan Bunpapong, Alongkorn Amonsin
The Validation Of Haemagglutinin Inhibition Test For The Detection Of Antibodies Against Canine Influenza Virus In A Guinea Pig Serum Model, Ratanaporn Tangwangvivat, Supassama Chaiyawong, Nutthawan Nonthabenjawan, Kamonpan Charoenkul, Taveesak Janethanakij, Duangduen Prakairungnamthip, Wittawat Wechtaisong, Supanat Boonyapisitsopa, Napawan Bunpapong, Alongkorn Amonsin
The Thai Journal of Veterinary Medicine
No abstract provided.
Biomechanical Analysis Of Atlantoaxial Dorsal Fixation Using Finite Element Models, Beomju Bae, Dongwook Kim, Hyejong Oh, Gonhyung Kim
Biomechanical Analysis Of Atlantoaxial Dorsal Fixation Using Finite Element Models, Beomju Bae, Dongwook Kim, Hyejong Oh, Gonhyung Kim
The Thai Journal of Veterinary Medicine
Atlantoaxial instability can cause spinal cord compression with clinical signs ranging from cervical pain to tetraplegia and death. Although a variety of dorsal fixation techniques have been described, some of them have been related to the fracture of the dorsal arch of the atlas, leading to surgical failure. Under the hypothesis that the shape of the dorsal arch of the atlas and types of implants might affect these bone fractures, the objective of this study was to analyze bone stresses through simulations of the dorsal fixation using finite element models. Arbitrary tension forces were given to implants for simulations of …
Low Colostrum Immunoglobulin G Concentration In Saanen Dams With Seropositive To Caprine Arthritis Encephalitis Virus Infection Without Affecting Kid Growth Rate, Chollada Buranakarl, Sumpun Thammacharoen, Kazuo Katoh
Low Colostrum Immunoglobulin G Concentration In Saanen Dams With Seropositive To Caprine Arthritis Encephalitis Virus Infection Without Affecting Kid Growth Rate, Chollada Buranakarl, Sumpun Thammacharoen, Kazuo Katoh
The Thai Journal of Veterinary Medicine
Caprine arthritis encephalitis (CAE) is one of the most pervasive diseases and causes economic damages both to health and milk production. Data on colostral quality and kids’ growth rate of CAE-seropositive CAE dams is limited. The aims of the present study were, 1) to investigate the general components including insulin-like growth factor 1 (IGF-1), immunoglobulin G (IgG) and Vitamin A (Vit A) in colostrum and 2) to determine the effect of the separation of kids born from CAE-seropositive mothers and fed heat-processed colostrum and milk on the growth rate of the kids of Saanen goats. The colostrum of dams with …
Clinical Characteristics, Antimicrobial Resistance And Treatment Outcomes Of Multidrug-Resistant Escherichia Coli Infection In Dogs And Cats At A Veterinary Teaching Hospital In Thailand, Jeerawat Soonthornsit, Sukanya Apiratwarrasakul, Nathita Phumthanakorn
Clinical Characteristics, Antimicrobial Resistance And Treatment Outcomes Of Multidrug-Resistant Escherichia Coli Infection In Dogs And Cats At A Veterinary Teaching Hospital In Thailand, Jeerawat Soonthornsit, Sukanya Apiratwarrasakul, Nathita Phumthanakorn
The Thai Journal of Veterinary Medicine
This retrospective study investigated the clinical characteristics of multidrug-resistant (MDR) Escherichia coli and its antimicrobial resistance phenotypes and analyzed the treatment outcomes of MDR E. coli infection in dogs and cats. The medical data of dogs and cats diagnosed in 2020 with E. coli infection at a veterinary teaching hospital were analyzed. Of 94 cases, the frequency of MDR E. coli (66%) infection was higher than that of non-MDR E. coli (34%). MDR E. coli was significantly more frequently detected in female dogs than non-MDR E. coli (P < 0.026). The most frequent MDR E. coli isolation sites were the urinary tract in dogs and skin wounds in cats. MDR E. coli isolates from dogs were highly resistant to ampicillin (96.1%), enrofloxacin (80.4%) and tetracycline (78.4%). Resistance to ampicillin (100%), enrofloxacin (90.9%), marbofloxacin (72.7%) and tetracycline (72.7%) occurred frequently in MDR E. coli isolates from cats. Low resistance to amikacin was detected in the MDR E. coli isolates from dogs and cats. The rates of clinical cure and non-clinical cure of the MDR E. coli and non-MDR E. coli cases were not significantly different. The duration of antimicrobial treatment for MDR E. coli was significantly longer in cats (12.6 ± 5.85 days) than in non-MDR E. coli cases (7 ± 0 days) (P < 0.048). Adjunctive therapy was prescribed more frequently in MDR E. coli (20%) than non-MDR E. coli cases (8.3%). The presence of MDR E. coli was high in this study. High resistance to commonly used antimicrobial drugs and treatment complications was observed in this study.
Naturally Occurring Peripheral T-Cell Lymphoma Not Otherwise Specified (Ptcl-Nos) With Systemic Dissemination In A Beagle, Ploen Nganthavee, Phuttipan Channgam, Tanit Kasantikul, Nlin Arya, Sirintra Sirivisoot, Tuddow Thaiwong, Zachary Millman, Rungrote Osathanon
Naturally Occurring Peripheral T-Cell Lymphoma Not Otherwise Specified (Ptcl-Nos) With Systemic Dissemination In A Beagle, Ploen Nganthavee, Phuttipan Channgam, Tanit Kasantikul, Nlin Arya, Sirintra Sirivisoot, Tuddow Thaiwong, Zachary Millman, Rungrote Osathanon
The Thai Journal of Veterinary Medicine
A 6-year-old intact female Beagle dog presented with acute vomiting. Abdominal ultrasound showed abdominal lymphadenopathy, ascites and a hyperechoic mass within the pancreas. Thoracic radiographs and echocardiography revealed cardiomegaly with pericardial effusion. The dog died following rapid deterioration and a subsequent necropsy revealed a multilobulated white-to-tan mass within the pancreas, attaching to the omentum, stomach and left adrenal gland. The heart was enlarged and infiltrated by similar coalescing off-white irregular masses. Histologically, the masses consisted of infiltrative sheets of large T lymphocytes replacing the normal architecture of the heart along with the lymph nodes, pancreas, stomach, omentum, left adrenal gland, …
Therapeutic Efficacy Of Subconjunctival Injectionof Canine Adipose-Derived Mesenchymal Stem Cells On Canine Spontaneous Chronic Corneal Epithelial Defect, Pechchalee Kengkla
Therapeutic Efficacy Of Subconjunctival Injectionof Canine Adipose-Derived Mesenchymal Stem Cells On Canine Spontaneous Chronic Corneal Epithelial Defect, Pechchalee Kengkla
Chulalongkorn University Theses and Dissertations (Chula ETD)
Spontaneous chronic corneal epithelial defects (SCCEDs) are important corneal injuries in dogs. Canine adipose-derived mesenchymal stem cells (cAD-MSCs) was used for treatment of various types of corneal ulcers in dogs. This study aimed to evaluate clinical outcomes and concentrations of tear fluid cytokine after subconjunctival injection of cAD-MSCs in canine SCCEDs. 9 canine SCCEDs eyes previously treated by debridement twice were included into this study. All eyes received a single subconjunctival injection of 1x106 cAD-MSCs. Ophthalmic examinations were undergone at day 7, 14 and 21 after treatment. Photographs of the cornea were taken to assess corneal epithelial defect, neovascularization and …
Nail Cortisol For Welfare Assessment In Shelter And Owned Cats, Minh Pham Quoc Anh
Nail Cortisol For Welfare Assessment In Shelter And Owned Cats, Minh Pham Quoc Anh
Chulalongkorn University Theses and Dissertations (Chula ETD)
Shelter cats are vulnerable to stress due to the challenging circumstances they face, including confinement, unfamiliar environments, people, and animals. This vulnerability often leads to welfare issues, emphasizing the importance of assessing and improving their well-being. Measuring cortisol levels, a stress hormone, from nails has emerged as a non-invasive method to evaluate the stress response in humans and other animals. This study aimed to apply nail cortisol for welfare assessment in cats by measuring and comparing nail cortisol concentrations (NCCs) of owned cats and shelter cats living in different conditions. Nails of 31 owned cats (OC), 29 shelter cats living …
Canine Pd-L1 Mrna And Protein Expression In Normal Tissues And Common Cancers, Fuengfa Damjamnong
Canine Pd-L1 Mrna And Protein Expression In Normal Tissues And Common Cancers, Fuengfa Damjamnong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Programmed cell death-ligand 1 (PD-L1), an immune check points molecule, is expressed differently in various tissues and plays an important role in common cancers. The objectives of this study are to investigate the expression of canine PD-L1 mRNA and protein in normal tissues and common cancers and to determine the correlation of PD-L1 expression with histologic grading of the malignant mammary gland tumor (MGT). In the normal tissue, the highest PD-L1 mRNA expression was observed in lymph node (P<0.01). In the cancer tissues, the highest PD-L1 mRNA expression was observed in lymphoma, but not significant (P=0.224). The PD-L1 mRNA expression was higher in benign tumors compared to malignant MGT (P=0.093) but not significant. Immunohistochemistry (IHC) was performed in formalin fixed paraffin embedded tissue of normal and MGT tissue using newly developed anti-canine PD-L1 monoclonal antibody (mAb) (clone 5D2). Immunostaining was detected on epithelial cells, transitional cell, parenchymal cells, alveolar macrophages and immune cells. The immunostaining score of malignant MGTs was higher than benign MGT (P<0.05). The immunostaining score was not significantly different among histological sub-types and histological grades. The lack of correlation between PD-L1 mRNA and protein expression in canine malignant MGTs was observed. In conclusion, this anti-canine PD-L1 mAb could be used as predictive biomarker for canine MGT. This study has fulfilled and expanded a knowledge of the PD-L1 checkpoint molecule in dogs and highlights a potential of PD-L1 antibodies using for immunotherapy in canine MGTs, similar to their application in human tumors.
Metabolomic Profiles Of Mammary Gland Secretion In Relation To Dam’S Weight, Litter Size, Parity Number, And Kid’S Growth In Black Bengal Goat, Tien Vo Thi Phuong
Metabolomic Profiles Of Mammary Gland Secretion In Relation To Dam’S Weight, Litter Size, Parity Number, And Kid’S Growth In Black Bengal Goat, Tien Vo Thi Phuong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Black Bengal goat, a small size meat-type goat which is known to have high litter size and low milk yield. Kids born from high litter size dams are at high risk of mortality. Colostrum contains high quantities of nutrients, growth factors, and passive antibodies, and is essential for kid survival and development. However, metabolomic profiles of mammary secretion in goats are still limited. The aims of this study were to investigate metabolomic profiles of mammary secretion of purebred Black Bengal goats and their relationships regarding to litter size, parity, dam health, and kid growth. Forty-three colostrum samples (D0) were collected …
Effects Of Fingerroot (Boesenbergia Rotunda) Powder On Egg Performance, And Quality, Egg Yolk Malondialdehyde In Laying Hens, Miftah Nurfarid
Effects Of Fingerroot (Boesenbergia Rotunda) Powder On Egg Performance, And Quality, Egg Yolk Malondialdehyde In Laying Hens, Miftah Nurfarid
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study aimed to determine the effect of fingerroot powder supplementation on the performance of laying hens, egg quality, and malondialdehyde in the egg yolk. A total of 192 Hy-Line brown laying hens aged 43 weeks were divided into four treatment groups with 48 hens in each group (8 replicates; 6 birds each). The treatments were the control (basal diet), basal diet supplemented with vitamin E at 250 mg/kg, basal diet plus 20 g fingerroot powder/kg, and basal diet plus 40 g fingerroot powder/kg. Performance parameters were analyzed in the following two experimental period: 1 to 3 week and 4 …
Effects Of Supplemented Intra- And Extra-Cellular Trehalose On Cryopreservation Of Feline Oocytes, Saengtawan Arayatham
Effects Of Supplemented Intra- And Extra-Cellular Trehalose On Cryopreservation Of Feline Oocytes, Saengtawan Arayatham
Chulalongkorn University Theses and Dissertations (Chula ETD)
Study 1 aimed at examining the effects of different stages of oocyte maturation and trehalose concentrations on freezing ability and developmental capability of feline oocytes. The immature and matured feline oocytes were cryopreserved and thawed. They were assessed for developmental competence. The effects of different concentrations of trehalose (0, 0.125, 0.25, 0.5, 1 M) on the freezing ability of feline oocytes were tested. The cryopreservation generally induced poor embryo development, while immature oocytes were more susceptible to cryodamage compared with the matured oocytes (P<0.05). Incubation of oocytes with high concentrations of trehalose (0.5, 1 M) significantly reduced the developmental competence. Optimal concentrations of trehalose during cryopreservation of immature and matured oocytes were different (0.125 M and 0.25 M, respectively). It is concluded that stages of meiotic maturation affected the freezing ability of feline oocytes. Optimal concentration of trehalose was differently required for immature and matured feline oocytes. Study 2 aimed at examining the effect of membrane-permeable trehalose on the freezing ability of feline oocytes matured in vitro. intracellular trehalose (trehalose hexaacetate; Tre-(OAc)6) was synthesized from trehalose precursor and subjected to spectroscopic characterization. The membrane permeability of the Tre-(OAc)6 was investigated by incubating oocytes with different concentrations of Tre-(OAc)6 (3, 15, and 30 mM) and optimum concentration and the toxicity of Tre-(OAc)6 were subsequently assessed. The effects of Tre-(OAc)6 on freezing ability in terms of apoptotic gene expression and developmental competence of in-vitro matured oocytes were examined, respectively. The Tre-(OAc)6 permeated into the ooplasm of cat oocytes in a dose- and time-dependent manner. The highest concentration of intracellular trehalose was detected when the oocytes were incubated for 24 h with 30 mM Tre-(OAc)6. For the toxicity test, incubation of oocytes with 3 mM Tre-(OAc)6 for 24 h did not affect maturation rate and embryo development. However, high doses of Tre-(OAc)6 (15 and 30 mM) significantly reduced maturation and fertilization rates (P < 0.05). In addition, frozen-thawed oocytes treated with 3 mM Tre-(OAc)6 significantly upregulated anti-apoptotic (BCL-2) gene expression compared with the control (0 mM) and other Tre-(OAc)6 concentrations (15 and 30 mM). Oocyte maturation in the presence of 3 mM Tre-(OAc)6 prior to cryopreservation significantly improved oocyte developmental competence in terms of cleavage and blastocyst rates when compared with the control group (P < 0.05). Our results lead us to infer that increasing the levels of intracellular trehalose by Tre-(OAc)6 during oocyte maturation improves the freezing ability of feline oocytes, albeit at specific concentrations. Study 3 aimed at examining the effects of combination of intra-cellular (Tre-(OAc)6) and extra-cellular (α,α-trehalose) trehalose on freezing ability of feline oocytes. Optimal concentrations of Tre-(OAc)6 (0, 1.5, and 3 mM) and trehalose (0, 0.125, 0.25, and 0.5 M) were investigated for cryopreservation of matured feline oocytes. The combination of the two optimal concentrations were subsequently examined. The results showed that 3 mM of Tre-(OAc)6 improved post-thawed developmental competence, while extra-cellular trehalose at 0.25 M significant enhanced freezing ability of feline oocytes (P<0.05). The combination of intra- and extra-cellular trehalose significantly improved developmental capability of frozen-thawed matured feline oocytes compared to non-trehalose control.
Metaproteomic Analysis Of Gut Resistome In The Cecal Microbiota Of Fattening Pigs Raised Without Antibiotics, Pamornya Buthasane
Metaproteomic Analysis Of Gut Resistome In The Cecal Microbiota Of Fattening Pigs Raised Without Antibiotics, Pamornya Buthasane
Chulalongkorn University Theses and Dissertations (Chula ETD)
Improper use of antibiotics in swine could reduce commensal bacteria and possibly increase pathogen infections via the gut resistome. This study aimed to compare the metaproteomic profiles of gut resistome and related metabolism in the cecal microbiota of fattening pigs raised under antibiotic-free (ABF) conditions with those of ordinary industrial pigs (controls, CTRL). The top three relative abundant microbials in both groups were Escherichia coli, Ruminococcus and Lactobacillus, followed by Bacteroides and Bifidobacterium. E. coli, Lactobacillus and Bacteroides were found to be increased in the CTRL group, whereas Ruminococcus and Clostridium were greater in the ABF group. The highest abundance …
The Effect Of High Dose Ascorbic Acid And High Dcad Administration On Oxidative Stress And Mammary Gland Function Of Dairy Goat Fed Under Tropical Condition, Sapon Semsirmboon
The Effect Of High Dose Ascorbic Acid And High Dcad Administration On Oxidative Stress And Mammary Gland Function Of Dairy Goat Fed Under Tropical Condition, Sapon Semsirmboon
Chulalongkorn University Theses and Dissertations (Chula ETD)
High ambient temperature (HTa) increased the respiration rate (RR) and rectal temperature (Tr) of dairy goats. The excess response resulted in acid-base imbalance, electrolyte imbalance, and systemic oxidative which could indirectly affect the mammary gland. Besides, HTa did directly alter cell function, and this has been proposed to be mediated by oxidative stress. We previously showed that high dietary cation and anion differences (DCAD) could decrease the HTa effect. In dairy cows, a high dose ascorbic acid (Asc) has been used to decrease oxidative stress. Then, It was hypothesized whether mammary gland function could be altered when the HTa was …
Microencapsulation Of Basil Oil And Its Effect On Replacement Of Antibiotic Growth Promoter, Antioxidant Status And Gut Functions Of Broilers, Sureerat Thuekeaw
Microencapsulation Of Basil Oil And Its Effect On Replacement Of Antibiotic Growth Promoter, Antioxidant Status And Gut Functions Of Broilers, Sureerat Thuekeaw
Chulalongkorn University Theses and Dissertations (Chula ETD)
The objectives of this work were 1) to study the preparation and characterization of microencapsulated basil oil (MBO), 2) to determine the stability of MBO against simulated gastrointestinal tract and storage 3) to investigate the antimicrobial and antioxidant properties of MBO and 4) to evaluate the supplementation of MBO on growth performance, antioxidant status, ileal digestibility and intestinal morphology in broiler chickens. The present work demonstrates the use of double-layered polymers (chitosan, CS and sodium alginate, SA) with opposite charges leading to a dual pH responsiveness. The double-layered microcapsule was studied on physicochemical characteristics, the swelling performance as well as …
Molecular Characterization And Antimicrobial Susceptible Profiles Of Thai Mycoplasma Synoviae And Immune Response Chickens Received Live Mycoplasma Synoviae Vaccine, Kriengwich Limpavithayakul
Molecular Characterization And Antimicrobial Susceptible Profiles Of Thai Mycoplasma Synoviae And Immune Response Chickens Received Live Mycoplasma Synoviae Vaccine, Kriengwich Limpavithayakul
Chulalongkorn University Theses and Dissertations (Chula ETD)
Mycoplasma synoviae infection in chickens which has been increasing worldwide is mostly controlled by pathogen-free flocks’ maintenance, medication in infected flocks and vaccination in high-risk flocks. The effective control strategy requires the information of diagnostic assays for detecting and differentiating M. synoviae strains, the understanding of immune response mechanisms in vaccinated chickens, and the reliable drug susceptible evidents for making decision in antimicrobial usage. This study aimed to develop a convenient assay for evaluation of quality or uniformity of vaccination with live MS-H vaccine, to characterize the immune response mechanisms in chickens receiving 3 different vaccination programs immunizing single dose …
Role Of Kca3.1 Channel On Renal Fibrosis In Doxorubicin-Induced Feline Kidney Cell Line, Penpicha Kuedbantakien
Role Of Kca3.1 Channel On Renal Fibrosis In Doxorubicin-Induced Feline Kidney Cell Line, Penpicha Kuedbantakien
Chulalongkorn University Theses and Dissertations (Chula ETD)
Feline renal fibrosis is the most common outcome of chronic kidney disease in cats. Nowadays, there is no specific treatment and the mechanism of fibrosis in cats is still unknown. Intermediate conductance Ca2+ activated K+ channel (KCa3.1) plays an important role in novel therapy for organ fibrosis in many species. Transforming growth factor- β (TGF-β)/Smad signaling pathway and KCa3.1 has been shown to relate to renal fibrosis. This study aimed to investigate the relationship between KCa3.1 and feline renal fibrosis via TGF-β/Smad signaling pathway. CRFK cultures were induced with doxorubicin (DOX) to generate feline renal fibrosis model. Triarymethane-34 (TRAM-34), selective …
Effects Of Microplastics On Gene Expression To Nonspecific Immune System In Pacific White Shrimp (Litopenaeus Vannamei)., Songsak Niemcharoen
Effects Of Microplastics On Gene Expression To Nonspecific Immune System In Pacific White Shrimp (Litopenaeus Vannamei)., Songsak Niemcharoen
Chulalongkorn University Theses and Dissertations (Chula ETD)
Microplastics pollution effects are increasingly observed as new studies emerge in different ecosystem and organismal levels. It is becoming clear that exposure to different types of microplastic can impair the nonspecific immune system of crustaceans. Therefore, this study investigated the impact of high-density polyethylene microplastic particles (HDPE-MP) in feed on nonspecific immune system gene expression of Pacific white shrimp (Litopenaeus vannamei). The LC50 at day 28 of HDPE-MP ingestion was 3.074% w/w of food. Superoxide dismutase (SOD) and the Glutathione peroxidase (GPx) gene were upregulated significantly in groups supplemented with 0.1 and 0.5% of HDPE-MP and then down-regulated significantly after …
Evolution And Phylogenetic Studies Of Porcine Epidemic Diarrhea Virus And Porcine Deltacoronavirus In Thailand From 2008 To 2021, Christopher James Stott
Evolution And Phylogenetic Studies Of Porcine Epidemic Diarrhea Virus And Porcine Deltacoronavirus In Thailand From 2008 To 2021, Christopher James Stott
Chulalongkorn University Theses and Dissertations (Chula ETD)
PEDV and PDCoV are recognized as important pathogens causing enteric disease in swine herds worldwide. During 2014-2015, several outbreaks of PEDV occurred in many provinces in Thailand, and the clinical signs were more severe than those of classical PEDV in Thailand during 2008-2012. Therefore, the new introduction of PEDV or mutated virus strains was suspected. In 2015, PDCoV was also reported in Thailand, making the situation of enteric disease in the Thai swine industry worse. Since genetic classification studies of PEDV and PDCoV had never been done in Thailand before, this study aimed to investigate the genetic diversity of PEDV …