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Articles 2521 - 2550 of 9758

Full-Text Articles in Veterinary Medicine

The Effect Of Maternally-Derived Antibodies Against Antibody Production In Vaccinated Piglets With Modified-Live Porcine Reproductive And Respiratory Syndrome Virus Vaccines, Sunit Mebumroong Jan 2020

The Effect Of Maternally-Derived Antibodies Against Antibody Production In Vaccinated Piglets With Modified-Live Porcine Reproductive And Respiratory Syndrome Virus Vaccines, Sunit Mebumroong

Chulalongkorn University Theses and Dissertations (Chula ETD)

The humoral antibody responses following vaccination with different lineage of modified live genotype 2 porcine reproductive and respiratory syndrome virus (PRRSV) vaccines (MLVs) were investigated. Moreover, the mortality and growth performance in pigs were observed. Twenty-four pigs with high maternally derived antibody (MDA) levels (SN titer ≥ 8) from each PRRSV positive Herd 1 and Herd 2 were allocated to the H1, H1-1, and H1-2 groups (Herd 1) and H2, H2-1, and H2-2 groups (Herd 2). Twenty-four pigs with low MDA levels (SN titer <8) were allocated to the L1, L1-1, and L1-2 (Herd 1) and L2, L2-1, and L2-2 groups (Herd 2). Twenty-four pigs from the negative herd (Herd 3) were allocated to 3 groups: N, N-1, and N-2 groups. The H1, H2, L1, L2, and N groups were unvaccinated. The H1-1, H2-1, L1-1, L2-1, and N-1 groups were vaccinated with MLV (Ingelvac® PRRS MLV) at 2 weeks of age. The 5 other groups: H1-2, H2-2, L1-2, L2-2, and N-2 groups were vaccinated with MLV2 (Prime Pac® PRRS MLV) at 2 week of age. The antibody responses were measured by ELISA and serum neutralization (SN). The mortality was not observed in all vaccinated groups. Additionally, pigs with high MDA levels from the H1 and H2 groups did not exhibit the mortality throughout the study. ADG in pigs vaccinated with each MLV1 and MLV2 was significant higher than that in unvaccinated pigs. However, pigs vaccinated with MLV2 showed the highest values of ADG. Seroconversion was observed in all vaccinated groups with no significance difference in antibody titers between pigs with low and high MDA levels. However, pigs with low MDA levels showed the earliest and highest antibody level post vaccination. The highest SN-titer against MLV1 isolate and MLV2 isolate was observed in pig from the L1-1 and L2-2 groups, respectively. The field PRRSV-2 isolates: THA_SP/RB_S1/P1/0120-18 and THA_WC/RB_F165/20-22, the SN titers against these isolates were not observed in vaccinated groups. These results indicated that MDAs might not affect the immune response post vaccination. PRRSV-2 MLVs reduced the mortality and improved growth performance of pigs in the endemically PRRSV infected herds. Although, the vaccine was changed in weaning pigs, the antibody responses were detected post vaccination in both pigs with low and high level of MDAs. Moreover, the genetic similarity between vaccine and field virus was not related to the protection. Vaccine selection should depend on the induction of immune response and protection against heterologous PRRSV infection.

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Genetic Characteristics Of Antimicrobial Resistance Of Salmonella Enterica And Escherichia Coli Isolated From Broilers, Pigs And Their Meat Products In Sa Kaeo, Banteay Meanchey And Siem Reap Provinces, Suthathip Trongjit Jan 2020

Genetic Characteristics Of Antimicrobial Resistance Of Salmonella Enterica And Escherichia Coli Isolated From Broilers, Pigs And Their Meat Products In Sa Kaeo, Banteay Meanchey And Siem Reap Provinces, Suthathip Trongjit

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research study aimed to investigate the incidence and characterize antimicrobial resistance (AMR) in Salmonella enterica and Escherichia coli isolated from broilers, pigs and their meat products in Thailand–Cambodia border provinces. Resistance to clinically importance antimicrobials was additionally examined in the E. coli isolates from other provinces with high pig production in Thailand. A total of 941 samples were collected from broilers and pigs at slaughterhouses and their carcasses at local fresh markets in Sa Kaeo, Thailand (n=554) and Banteay Meanchey and Siem Reap, Cambodia (n=387) during 2014-2015. Three hundred forty-five Salmonella isolates were collected from Thailand (n = 145; …

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Detection And Genetic Characterization Of Emerging And Re-Emerging Viral Enteric Diseases In Swine In Thailand, Taveesak Janetanakit Jan 2020

Detection And Genetic Characterization Of Emerging And Re-Emerging Viral Enteric Diseases In Swine In Thailand, Taveesak Janetanakit

Chulalongkorn University Theses and Dissertations (Chula ETD)

Emerging and re-emerging important enteric viruses in pigs including porcine epidemic diarrhea virus (PEDV), porcine deltacoronavirus (PDCoV) and enterovirus G (EVG) are important pathogens of food security and public health concerns. In Thailand, the information on the occurrences and status of PEDVs, PDCoVs and EVGs is limited. Especially, Thai-EVGs have never been reported before. This thesis composes of three study phases. Phase 1 is surveillance of swine enteric viruses in pig farms. Phase 2 is genetic characterization and phylogenetic analysis of swine enteric viruses. Phase 3 is development of rapid diagnostic tests using RT-LAMP with lateral flow device (LFD) and …

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Bacteriophage And Ozone-Nanobubble Based Approaches For Combating Multidrug-Resistant Aeromonas Hydrophila In Nile Tilapia (Oreochromis Niloticus) Culture System, Thanh Dien Le Jan 2020

Bacteriophage And Ozone-Nanobubble Based Approaches For Combating Multidrug-Resistant Aeromonas Hydrophila In Nile Tilapia (Oreochromis Niloticus) Culture System, Thanh Dien Le

Chulalongkorn University Theses and Dissertations (Chula ETD)

Aeromonas hydrophila infection is considered one of the most important bacterial diseases responsible for the loss of millions of dollars in the global freshwater aquaculture industry. Multidrug-resistant (MDR) A. hydrophila is becoming a global issue of concern. Non-antibiotic approaches can minimize the requirement for antimicrobials to combat infectious diseases and antimicrobial resistance. This study aims to investigate the potential application of lytic bacteriophage, ozone nanobubbles (NB-O3), a potential combination of bacteriophage and nanobubble-based technology in combatting MDR A. hydrophila in Nile tilapia. A newly Myoviridae phage pAh6.2TG was isolated, identified, and characterized in this study. The application of this phage …

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Relationship Between Insulin-Like Growth Factor-1 And Semen Quality In Asian Elephants (Elephas Maximus), Yuqing Yang Jan 2020

Relationship Between Insulin-Like Growth Factor-1 And Semen Quality In Asian Elephants (Elephas Maximus), Yuqing Yang

Chulalongkorn University Theses and Dissertations (Chula ETD)

Evidence has been increasingly suggested that insulin-like growth factor-1 (IGF-1) is related to steroidogenesis and spermatogenesis. This may be conducive to find the causes of poor sperm quality in Asian elephants (Elephas maximus). The present study aimed to investigate whether correlations among serum IGF-1 concentration, serum testosterone level and semen variables exist in elephants. A total of 17 ejaculates (1–3 ejaculates/bull) were collected by performing transrectal massage. Before each ejaculate, blood samples were obtained (n = 17). Subsequently, semen characteristics of each ejaculate were evaluated. Assessments of precision (calculations of the intra- and inter-assay coefficient of variation, CV) and accuracy …

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A Comparison Of Ketamine Combined With Dexmedetomidine And Ketamine Combined With Xylazine On Analgesia In Rabbits, Aomusa Kuaha Jan 2020

A Comparison Of Ketamine Combined With Dexmedetomidine And Ketamine Combined With Xylazine On Analgesia In Rabbits, Aomusa Kuaha

Chulalongkorn University Theses and Dissertations (Chula ETD)

The effects of ketamine combined with dexmedetomidine and ketamine combined with xylazine on analgesia and cardiopulmonary variables in rabbits were evaluated in eight healthy New Zealand White rabbits. The experiment used a randomized double-crossover design. The rabbits were randomly divided into two groups, Group KD (n=4: 2 males/2 females) receivied 35 mg kg -1of ketamine and 0.5 mg kg -1of dexmedetomidine SC, while Group KX (n=4: 2 males/2 females) receivied 35 mg kg -1of ketamine and 5 mg kg -1of xylazine SC. The physiological parameters included HR, RR, PR, SpO2, SBP and RT were determined every 5 minutes and continuously …

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Effects Of Single Bolus Injection Of Pimobendan On Cardiac Function, Hemodynamics, And Heart Rate Variability In Healthy Dogs, Poonavit Pichayapaiboon Jan 2020

Effects Of Single Bolus Injection Of Pimobendan On Cardiac Function, Hemodynamics, And Heart Rate Variability In Healthy Dogs, Poonavit Pichayapaiboon

Chulalongkorn University Theses and Dissertations (Chula ETD)

In veterinary medicine, pimobendan has been recommended for management of dogs with congestive heart failure for decades. Recently, an intravenous injectable solution of this drug has been launched. However, the effects of this preparation on electrocardiography, cardiac functions, hemodynamics, heart rate variability (HRV), and the pharmacokinetics (PK) in dogs are still limited. Therefore, the objective of this investigation is to investigate the hemodynamics, cardiac functions, electrocardiographic parameters, the PK profiles and its active metabolite, O-desmethyl pimobendan (ODMP), as well as its effect on HRV of a single bolus pimobendan in healthy dogs. Nine dogs were anesthetized and instrumented to obtained …

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ความหลากหลายของจีนเคซีนของแพะนมในประเทศไทย, นภารัตน์ เนาวนัด Jan 2020

ความหลากหลายของจีนเคซีนของแพะนมในประเทศไทย, นภารัตน์ เนาวนัด

Chulalongkorn University Theses and Dissertations (Chula ETD)

การศึกษาความหลากหลายของจีนเคซีนทั้ง 4 ชนิดในฐานะของจีนแคนดิแดท ที่มีผลต่อลักษณะการปริมาณน้ำนมในแพะจำนวน 65 ตัวแบ่งเป็นกลุ่มแพะที่มีบันทึกการให้ผลผลิตแล้วอย่างน้อย 1 ลำดับการให้นมและมีข้อมูลของลูกแพะ จำนวน 26 ตัว และกลุ่มแพะที่ไม่มีบันทึกการให้ผลผลิต จำนวน 35 ตัว จากการตรวจสอบความหลากหลายทางพันธุกรรมของจีนทั้ง 4 ชนิดด้วยวิธี DNA sequencing พบอัลลีลของจีนอัลฟาเอส 1 เคซีนทั้งหมด 3 ชนิด ได้แก่ A, C และ E มีความถี่ของอัลลีล เท่ากับ 0.577, 0.177 และ 0.246 ตามลำดับ มีความถี่จีโนไทป์ของ AA, AC, AE, CC และ EE เท่ากับ 0.292, 0.292, 0.277, 0.031 และ 0.108 ตามลำดับ จีนเบต้าเคซีน พบอัลลีลทั้งหมด 2 ชนิด ได้แก่ A และ F มีความถี่ของอัลลีล เท่ากับ 0.538 และ 0.462 ตามลำดับ มีความถี่จีโนไทป์ของ AA, AF และ FF เท่ากับ 0.246, 0.585 และ 0.169 ตามลำดับ จีนอัลฟาเอส 2 เคซีน พบอัลลีลทั้งหมด 2 ชนิด ได้แก่ A และ B มีความถี่ของอัลลีล เท่ากับ 0.862 และ 0.138 ตามลำดับ มีความถี่จีโนไทป์ของ AA และ AB เท่ากับ 0.723 และ …

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แนวโน้มทางพันธุกรรมของระยะเวลาอุ้มท้องและความสัมพันธ์ของระยะเวลาอุ้มท้องกับลักษณะทางการสืบพันธุ์ในแม่สุกร, ระวิวรรณ บำเพ็ญกุล Jan 2020

แนวโน้มทางพันธุกรรมของระยะเวลาอุ้มท้องและความสัมพันธ์ของระยะเวลาอุ้มท้องกับลักษณะทางการสืบพันธุ์ในแม่สุกร, ระวิวรรณ บำเพ็ญกุล

Chulalongkorn University Theses and Dissertations (Chula ETD)

ข้อมูลสุกรพันธุ์แท้แลนด์เรซ (Landrace, LR) ลาร์จไวท์ (Large White, LW) ดูรอค (Duroc, DR) และข้อมูลสุกรลูกผสมที่มาจากฟาร์มสุกรเชิงพาณิชย์ จำนวน 158,313 บันทึก เป็นข้อมูลของแม่สุกรที่คลอดในปี 2549 ถึง 2562 ถูกนำมาวิเคราะห์อิทธิพลของปัจจัยคงที่ด้วยวิธี GLM ในโปรแกรม SAS และประมาณค่าองค์ประกอบความแปรปรวนด้วยวิธี average information restricted maximum likelihood (AI - REML) ผลการศึกษาพบว่า พันธุ์สุกรและลำดับอุ้มท้องมีอิทธิพลต่อทุกลักษณะที่ทำการศึกษาอย่างมีนัยสำคัญทางสถิติ (P < 0.05) ฝูง - ปี - เดือนที่ผสมพันธุ์มีอิทธิพลต่อระยะเวลาอุ้มท้องของแม่สุกร (gestation length, GL) และจำนวนลูกสุกรแรกเกิดทั้งหมด (total number of piglets born, TB) อย่างมีนัยสำคัญทางสถิติ (P < 0.05) ฝูง - ปี - เดือนที่แม่สุกรคลอดลูกมีอิทธิพลต่อจำนวนลูกสุกรเกิดมีชีวิต (number of piglets born alive, BA) จำนวนลูกสุกรตายแรกเกิด (number of stillborn piglets, SB) และน้ำหนักแรกเกิดเฉลี่ยของลูกสุกร (average birth weight, BW) อย่างมีนัยสำคัญทางสถิติ (P < 0.05) ค่าอัตราพันธุกรรมของ GL TB BA SB และ BW มีค่าเท่ากับ 0.20 ± 0.00, 0.10 ± 0.00, 0.09 ± 0.00, 0.03 ± 0.00 และ 0.12 ± 0.01 ตามลำดับ ค่าสหสัมพันธ์ทางพันธุกรรมระหว่าง GL กับ TB และ GL กับ BA มีค่าใกล้ศูนย์ (P < 0.05) ไม่พบความสัมพันธ์ทางพันธุกรรมระหว่าง GL กับ SB และ GL กับ BW (P > 0.05) ค่าสหสัมพันธ์ทางพันธุกรรมระหว่าง TB กับ BA มีค่าเท่ากับ 0.99 ± 0.00 ค่าสหสัมพันธ์ทางพันธุกรรมระหว่าง TB กับ SB และ BA กับ SB มีค่าเท่ากับ 0.49 ± 0.05 และ 0.40 ± 0.05 ตามลำดับ และค่าสหสัมพันธ์ทางพันธุกรรมระหว่าง TB กับ BW และ BA กับ BW มีค่าเท่ากับ -0.56 ± 0.03 และ -0.59 ± 0.02 ตามลำดับ แนวโน้มทางพันธุกรรมของ GL มีค่าเพิ่มขึ้น 0.02 ± 0.01 และ 0.03 ± 0.01 วันต่อปี ในสุกรพันธุ์ LR และ LW ตามลำดับ และมีค่าลดลงเท่ากับ -0.02 ± 0.01 วันต่อปี ในสุกรพันธุ์ 50LW …

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Aminorex Identified In Horse Urine Following Consumption Of Barbarea Vulgaris; A Preliminary Report, George Maylin, Clara Fenger, Jacob Machin, Sucheta Kudrimoti, Rodney Eisenberg, Jonathan D. Green, Thomas Tobin Dec 2019

Aminorex Identified In Horse Urine Following Consumption Of Barbarea Vulgaris; A Preliminary Report, George Maylin, Clara Fenger, Jacob Machin, Sucheta Kudrimoti, Rodney Eisenberg, Jonathan D. Green, Thomas Tobin

Maxwell H. Gluck Equine Research Center Faculty Publications

Background: Aminorex, (RS)-5- Phenyl-4,5-dihydro-1,3-oxazol-2-amine, is an amphetamine-like anorectic and in the United States a Drug Enforcement Administration [DEA] Schedule 1 controlled substance. Aminorex in horse urine is usually present as a metabolite of Levamisole, an equine anthelmintic and immune stimulant. Recently, Aminorex identifications have been reported in horse urine with no history or evidence of Levamisole administration. Analysis of the urine samples suggested a botanical source, directing attention to the Brassicaceae plant family, with their contained GlucoBarbarin and Barbarin as possible sources of Aminorex. Since horsepersons face up to a 1 year suspension and a $10,000.00 fine for an Aminorex …

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A Model For The Prediction Of Antimicrobial Resistance In Escherichia Coli Based On A Comparative Evaluation Of Fatty Acid Profiles, Randal S. Stahl, Bledar Bisha, Sebabrata Mahapatra, Jeffrey C. Chandler Dec 2019

A Model For The Prediction Of Antimicrobial Resistance In Escherichia Coli Based On A Comparative Evaluation Of Fatty Acid Profiles, Randal S. Stahl, Bledar Bisha, Sebabrata Mahapatra, Jeffrey C. Chandler

United States Department of Agriculture Wildlife Services: Staff Publications

Antimicrobial resistance is a threat to agricultural production and public health. In this proof-of-concept study, we investigated predicting antimicrobial sensitive/resistant (S/R) phenotypes and host sources of Escherichia coli (n = 128) based on differential fatty acid abundance. Myristic (14:0), pentadecanoic acid (15:0), palmitic (16:0), elaidic (18:19) and steric acid (18:0) were significantly different (α = 0.05) using a two-way ANOVA for predicting nalidixic acid, ciprofloxacin, aztreonam, cefatoxime, and ceftazidime S/R phenotypes. Additionally, analyses of palmitoleic (16:1), palmitic acid (16:0), methyl palmitate (i-17:0), and cis-9,10-methyleneoctadecanoic acid (19:0Δ) showed these markers were significantly different (α = 0.05) between isolates obtained from cattle …

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Assessing The Blood Meal Hosts Of Culex Quinquefasciatus And Aedes Taeniorhynchus In Isla Santa Cruz, Galápagos, Samoa Asigau, Sawsan Salah, Patricia Parker Dec 2019

Assessing The Blood Meal Hosts Of Culex Quinquefasciatus And Aedes Taeniorhynchus In Isla Santa Cruz, Galápagos, Samoa Asigau, Sawsan Salah, Patricia Parker

Biology Department Faculty Works

No abstract provided.

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Behavioural Risks In Female Dogs With Minimal Lifetime Exposure To Gonadal Hormones, Melissa J. Starling, Anne Fawcett, Bethany Wilson, James Serpell, Paul Mcgreevy Dec 2019

Behavioural Risks In Female Dogs With Minimal Lifetime Exposure To Gonadal Hormones, Melissa J. Starling, Anne Fawcett, Bethany Wilson, James Serpell, Paul Mcgreevy

Physiology Collection

Spaying of female dogs is a widespread practice, performed primarily for population control. While the consequences of early spaying for health are still being debated, the consequences for behaviour are believed to be negligible. The current study focused on the reported behaviour of 8981 female dogs spayed before 520 weeks (ten years) of life for reasons other than behavioural management, and calculated their percentage lifetime exposure to gonadal hormones (PLGH) as a proportion of their age at the time of being reported to the online Canine Behavioral Assessment and Research Questionnaire (C-BARQ). We found that 23 behaviours differed between entire …

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A Retrospective Study Of The Effect Of Single Dose Intra-Articular Hyaluronic Acid Injection On Postoperative Recovery In Dogs Undergoing Stifle Surgery, Jiradet Trairatthanom, Sasithorn Trairatthanom, Naris Thengchaisri Dec 2019

A Retrospective Study Of The Effect Of Single Dose Intra-Articular Hyaluronic Acid Injection On Postoperative Recovery In Dogs Undergoing Stifle Surgery, Jiradet Trairatthanom, Sasithorn Trairatthanom, Naris Thengchaisri

The Thai Journal of Veterinary Medicine

Hyarulonicacid (HA) is an abundant molecule found in synovial fluid and plays an important role as a lubricant and shock absorber for the joints. Nonetheless, the effects of synovial fluid replacement with HA after canine stifle surgery remains elusive. A retrospective study was conducted on 54 small breed dogs with either medial patellar luxation (MPL) or cranial cruciate ligament ruptures (CCLR). Dogs were classified as HA (21 with MPL-HA and 16 with CCLR-HA) or control (10 with MPL-C and 7 with CCLR-C) groups. The weight bearing score, lameness score, and pain scores were compared between HA and control groups on …

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Chronic Toxicity Of Monosodium Glutamate On The Reproductive System And Some Internal Organs Of Zebrafish (Danio Rerio), Chortip Sajjaviriya, Aranya Ponpornpisit, Nopadon Pirarat, Naowarat Suthamnatpong Dec 2019

Chronic Toxicity Of Monosodium Glutamate On The Reproductive System And Some Internal Organs Of Zebrafish (Danio Rerio), Chortip Sajjaviriya, Aranya Ponpornpisit, Nopadon Pirarat, Naowarat Suthamnatpong

The Thai Journal of Veterinary Medicine

Monosodium glutamate(MSG)is commonly used to enhance the tastes food. It is composed of sodium salt and amino acids. Although MSGis considered safe at the consumption level, its adverse effectshave been reported. The objectiveof thisstudyis to evaluate the effects of MSG on the brain, liver, kidney, testes, and ovaries of zebrafish(Danio rerio)which were chronically exposed to MSG from the embryo stage to the adult stage. Additionally, the fertilization rate and hatching rate of zebrafish embryos were also analyzed. Zebrafishwererandomly divided into four groups and treated with MSG at 0, 10, 100 and 1,000 mg/l, respectively for 60days. Before sacrifice for histopathological …

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Efficiency Of Clove Essential Oil Against Planktonic Cells And Biofilms Of Malassezia Pachydermatis Isolated From Canine Dermatitis, Jareerat Aiemsaard, Chuchat Kamollerd, Suwit Uopasai, Ranee Singh, Eakachai Thongkham Dec 2019

Efficiency Of Clove Essential Oil Against Planktonic Cells And Biofilms Of Malassezia Pachydermatis Isolated From Canine Dermatitis, Jareerat Aiemsaard, Chuchat Kamollerd, Suwit Uopasai, Ranee Singh, Eakachai Thongkham

The Thai Journal of Veterinary Medicine

This study investigated the ability of clove oil and eugenol to inhibit biofilm production and eradicate canine Malassezia pachydermatisin biofilm form. Biofilm formation was studied using a crystal violet assay and was quantified by optical density (OD)at 595 nm. Killing time was assessed by time-kill assay.All 17 isolates of canine M.pachydermatiswere capable of biofilm formation, however, 6 isolates formed more extensive biofilms than the other isolates and were selected for susceptibility testing. Clove essential oil and eugenol showed effectiveness against both planktonic and biofilm cells with identical minimum planktonic inhibitory concentration (MPIC50) and minimum planktonic fungicidal concentration (MPFC50), 0.156 and …

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The Impact Of Ergot Alkaloid Consumption During Gestation On Maternal Performance And Fetoplacental Development, Jessica Lynn Britt Dec 2019

The Impact Of Ergot Alkaloid Consumption During Gestation On Maternal Performance And Fetoplacental Development, Jessica Lynn Britt

All Dissertations

Tall fescue is the primary cool season perennial forage grass in southeastern US for grazing livestock. Tall fescue the is known to be drought tolerant , disease resistant, grazing tolerant and overall very hardy. Many of these attributes common to fescue are due to a symbiotic relationship between the fescue plant and an endophyte, Epichloë coenophiala , which produces a class of mycotoxins known as ergot alkaloids. These ergot alkaloids are similar in structure to several biogenic amines, such as epinephrine, norepinephrine, and dopamine. When consumed, ergot alkaloids cause a syndrome known as fescue toxicosis which causes problems with weight …

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Selection Of The Appropriate Reference Genes For Relative Quantitative Reverse Transcription Polymerase Chain Reaction (Qrt-Pcr) In Canine Pulmonary Arteries, Nattawan Tangmahakul, Somporn Techangamsuwan, Sirilak Disatian Surachetpong Dec 2019

Selection Of The Appropriate Reference Genes For Relative Quantitative Reverse Transcription Polymerase Chain Reaction (Qrt-Pcr) In Canine Pulmonary Arteries, Nattawan Tangmahakul, Somporn Techangamsuwan, Sirilak Disatian Surachetpong

The Thai Journal of Veterinary Medicine

A normalisationof targeted genes using the appropriate reference genes is necessary for reliable quantitative reverse transcription polymerase chain reaction (qRT-PCR) experiments. This study aimed to investigate the appropriate reference genes and the numbers of the genes required for qRT-PCR in canine pulmonary arteries. Pulmonary arteries were collected from twenty-three dogs at necropsy. Candidate reference genesincluding ribosomal protein L32 (RPL32), ribosomal protein L13a (RPL13A), ribosomal protein S18 (RPS18), TATA box binding protein (TBP), beta-2-microglobulin (B2M), ribosomal protein S5 (RPS5), ribosomal protein S19 (RPS19) and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) from pulmonary arteries were examined by qRT-PCR and analysed using four major algorithms, including …

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Distribution And Risk Factors Of Clinical Caseous Lymphadenitis In Small-Holder Goat Herds In Northeastern Thailand, Suteekan Thongkwow, Natchanon Poosiripinyo, Nuttapon Pongkornkumpon, Sitang Saengsakchai, Nattakarn Klinkhiew, Tassapon Chalatan, Kwankate Kanistanon, Sawarin Lerk-U-Suke, Sarinya Rerkyusuke Dec 2019

Distribution And Risk Factors Of Clinical Caseous Lymphadenitis In Small-Holder Goat Herds In Northeastern Thailand, Suteekan Thongkwow, Natchanon Poosiripinyo, Nuttapon Pongkornkumpon, Sitang Saengsakchai, Nattakarn Klinkhiew, Tassapon Chalatan, Kwankate Kanistanon, Sawarin Lerk-U-Suke, Sarinya Rerkyusuke

The Thai Journal of Veterinary Medicine

Clinical caseouslymphadenitis was observed in 60 of 1,186 goats. A total of 34 small holder goat farms were investigated in 11 provinces in the northeastern part of Thailand. Approximately66.67%of clinical caseous lymphadenitis goats were infected with Corynebacterium pseudotuberculosis,as confirmed by an ELISA test or bacterial culture. The average prevalence of clinical caseous lymphadenitisin herds was 6.36+4.30%(4.86–7.86; 95%CI). The abscessation of a superficial lymph node was commonly found in proximal (46.67%), middle (38.33%), and distal (15%)parts of the body. The location of the lesion was significantly associated (p<0.05)with positivity either from ELISA or bacterial culture, as goats with lesionsinthe distal part of the body showed a higher positivity (90%)than at theproximal (75%)and middle parts(45%)(p=0.02), respectively. No significant difference was observed for goat gender, age, or breed in terms of infection prevalence or displays of clinical signs of caseous lymphadenitis(p>0.05). Controland prevention measures should incorporate client education on a number of factors, …

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Effect Of Supplementing Magnesium Picolinate In Drinking Water On Growth Performance, Meat Quality And Cecal E. Coli Of Broiler Reared Under Tropical Conditions, Siriporn Namted, Choawit Rakangthong Dec 2019

Effect Of Supplementing Magnesium Picolinate In Drinking Water On Growth Performance, Meat Quality And Cecal E. Coli Of Broiler Reared Under Tropical Conditions, Siriporn Namted, Choawit Rakangthong

The Thai Journal of Veterinary Medicine

The effect of Mg supplementation in drinking water was evaluated on the growth performance, carcass quality, meat quality and cecal E. colilevel of Broilersreared under Tropical Conditions. A sample of 192 male broiler chickens (Ross 308) were divided into 2 groups(each group consisting of 8 replicates of 12 chicks each) as: 1) control group, without Mg supplementation in the drinking water; and 2) Drinking Mg group, 10 mg of Mg/L was added into 1 L of their drinking water. It was shown that supplementing Mg in the drinking water significantly reduced body weight (P = 0.04) and tended to decrease …

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Occurrence Of Oral Shedding Of Retroperitoneal Fibromatosisassociated Herpesvirus And Lymphocryptovirus In Free-Ranging Macaques, Thailand, Supakarn Kaewchot, Chalisa Mongkolphan, Parut Suksai, Sunita Wingwon, Jira Niyomdham, Netnapa Vitithummakhun, Rattana Sariwongchan, Luxsana Prasittichai, Natanon Panpeth, Ladawan Sariya Dec 2019

Occurrence Of Oral Shedding Of Retroperitoneal Fibromatosisassociated Herpesvirus And Lymphocryptovirus In Free-Ranging Macaques, Thailand, Supakarn Kaewchot, Chalisa Mongkolphan, Parut Suksai, Sunita Wingwon, Jira Niyomdham, Netnapa Vitithummakhun, Rattana Sariwongchan, Luxsana Prasittichai, Natanon Panpeth, Ladawan Sariya

The Thai Journal of Veterinary Medicine

Oropharyngeal swabs of 262 free-ranging macaques (Macaca fasicularisand M. mulatta) were tested for Herpesviridae. The occurrence was 24.4% (64/262), and no macaques showed clinical signs of the disease. The virus was restricted to the northern and north-eastern regions of Thailand. DNA polymerase genes of the 64 positive samples were then characterized and analyzed. Eight samples (3.1%) were found to be closely related to retroperitoneal fibromatosis-associated herpesvirus (RFHV) and were classified in the genus Rhadinovirus, subfamily Gammaherpesvirinae. The phylogram of the virus revealed it to be species-specific within the macaque population. A total of 56 samples (21.4%) exhibited a nucleotide relationship …

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Rubber Band Syndrome In A Dyspneic Dog, Nithida Boonwittaya, Saroch Kaewmanee Dec 2019

Rubber Band Syndrome In A Dyspneic Dog, Nithida Boonwittaya, Saroch Kaewmanee

The Thai Journal of Veterinary Medicine

The rubber band syndrome has been reported inboth human and animal patients but the number of cases shows it is an uncommon condition. Most cases live in communities where a rubber band is commonly used for a wide variety of purposes. Here we report a case of a dyspneic dog with a linear constricting scar and a discharging sinus on the ventral neck. The radiography showed constructive signs. Surgical exploration found a colored rubber band burrowing into the tracheal lumen. Following surgery, the dog recovered without any complications in the postoperative follow-up period. This case emphasized that rubber band syndrome …

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In Vitro And In Vivo Effect Of Chia Oil (Salvia Hispanica L.) On Haplorchis Taichui, Jiraporn Songsri, Danupol Ketthaisong, Thidarut Boonmars, Parichart Boueroy, Porntip Laummaunwai, Kulthida Vaeteewoottacharn, Panaratana Rattanasuwan, Chantana Boonyarat, Khomsorn Lomthaisong, Ratchada Tangwongchai, Glenn N. Borlace Dec 2019

In Vitro And In Vivo Effect Of Chia Oil (Salvia Hispanica L.) On Haplorchis Taichui, Jiraporn Songsri, Danupol Ketthaisong, Thidarut Boonmars, Parichart Boueroy, Porntip Laummaunwai, Kulthida Vaeteewoottacharn, Panaratana Rattanasuwan, Chantana Boonyarat, Khomsorn Lomthaisong, Ratchada Tangwongchai, Glenn N. Borlace

The Thai Journal of Veterinary Medicine

Haplorchis taichuiis an intestinal heterophyidfluke that is pathogenic to humans. This parasite can mature in the small intestine of birds and mammals. The purpose of this study was to investigatethe effect of chia seed oil (Salvia hispanica L.) on H. taichuiin vitroand in vivo. The activity of adult H. taichuiworms incubated in Tyrode’s solution containing praziquantel (10μg/ml) or chia oil (1 or 10 mg/ml) for 1, 6, 12 and 24 hours was assessed by observation under a stereo-microscope. Syrian hamsters infected with 200 H. taichuimetacercariae were treated with 25mg/kgBW praziquantel in a single dose or 100mg/kgBW chia oil for 3 …

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A Behavioral Study Of Stray Dogs In Temples In Nakhon Ratchasima Municipality, Thailand, Xin Huo, Panich Kumroptanasan, Pongchan Na-Lampang Dec 2019

A Behavioral Study Of Stray Dogs In Temples In Nakhon Ratchasima Municipality, Thailand, Xin Huo, Panich Kumroptanasan, Pongchan Na-Lampang

The Thai Journal of Veterinary Medicine

The aim of thisstudy was to investigate the reactions of stray dogs in temples to strangers by means of a stranger-approach test.Behavioral data of temples dogs was collected from 5 temples from September to November 2018. The dogs’ behavior, social condition (alone, in pairs and with >3 dogs), reaction distances (0-2m, 2-5m and >5) and reaction behavior: neutral, avoidance, aggressive, vocalization, approachand tail movements were all observed. All the reaction behavior recorded was the dogs’initial reactions.After the 1ststranger-approach test, which was conducted in the 1stweek, the observer tried to get the dogs used to him by feeding and grooming them …

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Variations In The Branching Pattern Of The Canine Coeliac Trunk In Thailand: An Anatomical Study, Rachanchai Chawangwongsanukun, Krai Meemon, Damri Darawiroj, Tuempong Wongtawan Dec 2019

Variations In The Branching Pattern Of The Canine Coeliac Trunk In Thailand: An Anatomical Study, Rachanchai Chawangwongsanukun, Krai Meemon, Damri Darawiroj, Tuempong Wongtawan

The Thai Journal of Veterinary Medicine

Although the major dog population in Thailand is the Thai native dog, its anatomy has rarely been studied. This study aimed to investigate anatomical variations of the canine coeliac trunk (CT) in Thailand by observing 62 cadavers including 46 Thai native dogs and 16 non-Thai native dogs. All cadavers were preserved in formalin solution, and the arteries were illustrated by injection of red coloured latex. Variations of CT were initially classified into 2 main types and 7 subtypes (type 1a-e and 2a-b) basedon the previous reports. Type 1 was described as CT separated from the cranial mesenteric artery (CMA) while …

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Molecular Analysis Of Staphylococcus Aureus Isolated From Infected Dairy Goats, Muhammad Asghar Qazi, Shahid Sherzada, Abdul Wajid, Sonia Iqbal, Usman Atique, Rabia Bibi, Ayesha Maqbool, Saeed Akram Khan, Akhtar Ali, Tanveer Hussain, Masroor Elahi Babar Dec 2019

Molecular Analysis Of Staphylococcus Aureus Isolated From Infected Dairy Goats, Muhammad Asghar Qazi, Shahid Sherzada, Abdul Wajid, Sonia Iqbal, Usman Atique, Rabia Bibi, Ayesha Maqbool, Saeed Akram Khan, Akhtar Ali, Tanveer Hussain, Masroor Elahi Babar

The Thai Journal of Veterinary Medicine

Staphylococcus aureusis the leading cause of mastitis in dairy goats and is globally recognized as a significant mastitis-causing pathogen in dairy animals. Previous studies have established it as the causative agent of various human disorders, including food poisoning and Staphylococcal enterotoxins. Furthermore, poor sanitary conditions suit infection by this bacterium. This study determined the occurrence of S. aureusin infected dairy goats by molecular analysis. A hundred raw milk samples were collected from two infected dairy goat breeds (Beetal = 71; Teddy = 29) and cultured on blood agar media. The strain identified as S. aureusby morphological method (Gram staining), biochemical …

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Efficacy Of Competitive Exclusion To Reduce Salmonella In Broiler Chickens, Nattaporn Jiratitipat, Prapasri Srikhong, Wisanu Wanasawaeng, Niwat Chansiripornchai Dec 2019

Efficacy Of Competitive Exclusion To Reduce Salmonella In Broiler Chickens, Nattaporn Jiratitipat, Prapasri Srikhong, Wisanu Wanasawaeng, Niwat Chansiripornchai

The Thai Journal of Veterinary Medicine

Competitive exclusion (CE) relies on the activity of normal flora to limit intestinal colonization by enteric pathogens. This study aims to investigate the effects of CEon Salmonellainfectionin broilers. The protective effect of CE on Salmonella cecal colonization was evaluated in 1 day-old chicks.In the laboratory trial, CE products were administered by oral inoculation, drinking water and whole body spray. Three days after treatment,the chickens were challenged with 107cfu/mL of SalmonellaEnteritidisorally, and were evaluated for 10 days. The CE-treated chickens showed comparable protection andthe number of Salmonella in the cecal contents significantly decreased(P<0.05)compared with those of the positive control. In the farm trial,CE was administeredby whole body spray at the hatchery and the second was administered by drinking water and evaluated at 32 and 42 days, respectively. The CE significantly reduced Salmonellacontamination in the farm trial andno Salmonellawas detected in the cecal contents compared with the control group. Average body weight gains, feed conversion ratioand theperformance indexof the chickens were greater than thecontrol group. Thus, the use of CEhad a positive effect on broiler performance. Furthermore, the CE-treated chickens displayed greater intestinal histology including villous height, submuscular layerand cell mitosis.These studies demonstrate that CEwas able to protect chickens from Salmonella cecalcolonization and it is apparent that new methodologies associated with the development of a workable CE program are needed in thepoultry industry.

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Porcine Reproductive And Respiratory Syndrome Virus (Prrsv) Preferentially Infected The Apical Surface Of Primary Endometrial Cell Monolayer, Muttarin Lothong, Suphot Wattanaphansak, Chatsri Deachapunya, Sutthasinee Poonyachoti Dec 2019

Porcine Reproductive And Respiratory Syndrome Virus (Prrsv) Preferentially Infected The Apical Surface Of Primary Endometrial Cell Monolayer, Muttarin Lothong, Suphot Wattanaphansak, Chatsri Deachapunya, Sutthasinee Poonyachoti

The Thai Journal of Veterinary Medicine

The underlying mechanism of porcine reproductive and respiratory syndrome virus (PRRSV) causing reproductive failure and re-circulation in herds has remained unclear. Endometrial cells primarily infected with PRRSV may serve as a significant target for PRRSV eradication. Primary endometrial (PE) cells from the porcine uterus were isolated and cultivated to pursue this possibility. Immunocytochemistry analysis revealed the protein expression of classical estrogen receptors (ER-and ER-), but not PRRSV receptors, CD163 and sialoadhesin in PE cells. PE cells were apically/basolaterally inoculated with PRRSV type I/type II isolated from PRRSV infected lungs or mock infection. Cytopathic effects (CPE) and PRRSV-GP5 positive cells were …

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Successful Treatment Of Feline Pseudomycetoma Caused By Microsporum Canis: A Case Study, Pansawut Sudjaidee, Thanida Sananmuang, Kanchanarut Mankong, Premsak Jeeratanyasakul Dec 2019

Successful Treatment Of Feline Pseudomycetoma Caused By Microsporum Canis: A Case Study, Pansawut Sudjaidee, Thanida Sananmuang, Kanchanarut Mankong, Premsak Jeeratanyasakul

The Thai Journal of Veterinary Medicine

A 3.5-year-old, 3.9 kg, intact, male Persian cat was presented at the hospital for chronic multifocal nodular dermatitis. The lesions with ulcerated nodules and yellow granular discharge were found mainly on the body and tail. Fungal culture was positive to Microsporum canisand skin biopsy revealed multifocal extensive fungal granuloma throughout necrotic fibrosis. The cat was treated with itaconazole for 4 months and the lesions were slightly improved. The skin nodules localized on the body, except the tail, were eventually removed. Approximately 1 month after surgery, the cat was vaccinated with inactivated vaccine against mycotic disease caused by Microsporum canistwo-week apart …

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Investigating Egg Storage Conditions, Hatch Characteristics, And Feeding Methods Of Commercially Produced Poultry, Joshua R. Deines Dec 2019

Investigating Egg Storage Conditions, Hatch Characteristics, And Feeding Methods Of Commercially Produced Poultry, Joshua R. Deines

Graduate Theses and Dissertations

Advancements in poultry research continue to add knowledge and understanding to an already technical industry. Such information has led to new developments in early feeding strategies which provide nutrients to broiler chicks while in the egg or during transport. This wealth of knowledge in poultry research extends beyond chickens and is utilized for other species, such as quail and pheasants, including how fertile eggs are stored and incubated. However, methods of early feeding broilers have not been investigated in industry relevant approaches to understand its effects, including how timing of feed access interacts with the hatch window. As well, quail …

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