Veterinary Medicine Commons^™

Thermography In The Assessment Of Equine Lameness, Mehmet Alper Çeti̇nkaya, Alper Demi̇rutku

Turkish Journal of Veterinary & Animal Sciences

Infrared thermography pictorially represents the surface temperature of an object. It is a noninvasive method for detecting superficial inflammation and thus can be used in lameness diagnosis. Thermography is prone to artifacts, and, consequently, this has led some people to doubt its clinical applicability. With experience and care in interpretation, thermography can be a useful method for lameness evaluation. The aim of this study was to present further clinical information about infrared thermal cameras and to compare the diagnostic yields of thermography, radiography, and ultrasonography. Forming the animal material of this study were 47 horses with lameness. The extremities of …

Interfragmental Fixation Of Rostral Mandibular Fracture With Cerclage Wire In A Thoroughbred English Horse, Mehmet Alper Çeti̇nkaya, Alper Demi̇rutku

Turkish Journal of Veterinary & Animal Sciences

The patient in this study was a 20-year-old thoroughbred gelding. After clinical and radiographical assessments, a bilateral rostral mandibular body fracture was determined. Fracture stabilization was achieved via a bilateral interfragmentary cerclage wire application. The horse started to use its jaw within 24 h of surgery. Postoperative radiographs were taken until month 6, at different periods, and fracture healing was evaluated. Fixation materials were left in place. Fracture healing occurred with a rostral part malocclusion. The purpose of this study was to give clinical information about mandibular fractures and treatment of these fractures in a horse.

Ultrasonographic Evaluation Of Cricoarytenoideus Lateralis Muscle In Standardbred Horse, Fulvio Laus, Emanuele Paggi, Matteo Cerquetella, Beniamino Tesei

Turkish Journal of Veterinary & Animal Sciences

The cricoarytenoideus lateralis muscle (CALM) is an adductor of the arytenoid cartilages but is not directly involved in the pathogenesis of recurrent laryngeal neuropathy (RLN) as the abductor cricoarytenoideus dorsalis muscle (CADM) is. Nevertheless, the CALM is the first muscle to experience a neurogenic atrophy in the course of RLN and this feature explains its potential importance in RLN diagnosis. On 30 gelding and 30 female Standardbred horses weighing about 500 kg and aged between 3 and 9 years, an ultrasound examination of the larynx was performed in order to assess shape, size, and echogenicity of the CALMs. The mean …

Genetic Immunization In The Horse: The Potential For Enhanced Immune Responses With Deacylated Polyethyleneimine (Pei) And Immunostimulatory Cytokines As Vaccine Adjuvants, Deborah Lee Even

Theses and Dissertations--Veterinary Science

DNA vaccines in larger animals, such as horses, are generally less effective and elicit significantly weaker immune responses, than in small animal model systems. To provide optimal protection against pathogenic microorganisms, the induction of both humoral and cellular immune responses from DNA vaccination may be necessary. One limitation to DNA immunization in the horse is the difficulty in generating high levels of antigen-specific antibody and CTL responses. Previous work in the laboratory has demonstrated that expression constructs containing native sequences encoding the surface unit (SU) envelope glycoprotein (pCiSU) of the Equine Infectious Anemia Virus (EIAV) are ineffective at stimulating immune …

Effects Of Supplemental Fructo-Oligosaccharide And Mannan-Oligosaccharide On Nutrient Digestibilities, Volatile Fatty Acid Concentrations, And Immune Function In Horses, Emel Gürbüz, Fatma İnal, Saki̇ne Ülküm Ata, Özcan Bariş Çi̇ti̇l, Kürşat Kav, Fati̇h Küçükkaya

Turkish Journal of Veterinary & Animal Sciences

This research was performed to study the effects of fructo-oligosaccharide (FOS) and mannan-oligosaccharide (MOS) on nutrient digestibilities, fecal pH and volatile fatty acids compositions, and immune function in adult horses. Four adult Thoroughbred horses were used in a 4×4 Latin Square design with 20-day treatment periods. A 12-day adaptation phase was followed by 6-day collection of feces and 2-day blood sampling phases. Four different treatments were administered: 1) Control (no supplemental FOS or MOS; 2) 30 g of FOS/d; 3) 30 g of MOS/d; 4) 15 g of FOS+15 g of MOS/d. There were no differences among treatments in the …

A Case Report Of Ulcerative Lymphangitis (A Mini Review Of Causes And Current Therapies), Fereydon Rezazadeh Zavoshti, Amir Babak Sioofy-Khojine, Hassan Ali Mahpeikar

Turkish Journal of Veterinary & Animal Sciences

Ulcerative lymphangitis, or pigeon fever, is a bacterial infection of the lymphatic vessels of the skin in horses, cattle, sheep, and goats. Corynebacterium pseudotuberculosis is the classical cause of the disease. However, other pathogens such as Staphylococcus aureus have been isolated from cases of ulcerative lymphangitis. The aim of this report is to review the causes of pyoderma and skin abscesses in horses with specific attention to Staphylococcus aureus. A 10-year-old Thoroughbred stallion was examined in the suburbs of Tabriz (northwest of Iran) in February 2007. Skin abscesses were present around the hock joints on the hind limbs, on the …

Effects Of Clenbuterol On Skeletal And Cardiac Muscle In Horses, Jessica Thompson

LSU Master's Theses

Clenbuterol is a commonly prescribed β2-adrenergic agonist approved for veterinary use as a bronchodilator in horses with reactive and obstructive airway disease. Potential for abuse of this drug in the horse industry is substantial, due to the perceptions that clenbuterol increases performance and lean muscle mass. Although anabolic effects have been confirmed in multiple species, recent studies into the effects of clenbuterol in exercising horses suggest that clenbuterol doses within therapeutic ranges negatively impact aerobic capacity and cardiac function. Results of studies in murine models demonstrate that clenbuterol directly induces skeletal and cardiac muscle cell death at high doses. Three …

Matrix Metalloproteinases In The Equine Systemic Inflammatory Response: Implications For Equine Laminitis, Lee Ann Fugler

LSU Doctoral Dissertations

Laminitis is a crippling and often life-threatening disease of the equine foot. Soft tissue damage characteristic of this disease has been associated with increased MMP activity. Therefore, it seems likely that MMPIs could be potential therapeutic agents for laminitis. Further characterization of equine MMPs and evaluation of the effectiveness of MMPIs in the horse are needed. Equine MMP-9 was harvested from neutrophils, purified by affinity chromatography, and evaluated using western blotting and gelatin zymography. The Biotrak MMP-9 Activity Assay was evaluated for use with equine samples using equine neutrophil MMP-9 as a standard, and was determined to have insufficient sensitivity …

The Relationship Between Pro-Inflammatory Cytokines, Prostaglandins, And Fetal Hypothalamic-Pituitary-Adrenal Axis Activation In Mares With Infective Pre-Term Delivery, Sara K. Lyle

LSU Doctoral Dissertations

Ascending placentitis is a significant cause of abortions, stillbirths, and perinatal loss in horses. A technique for laparoscopic-guided catheterization of the allantoic space was developed and utilized in an experimental model of streptococcal infective pre-term delivery in pony mares. Mares received either 1 x 107 CFU live S. zooepidemicus (n=3), 5.1 x 108 CFU live S. zooepidemicus (n=1), 1 x 107 heat-killed S. zooepidemicus (n=3), 1 mL sterile PBS (n=3). Sham control mares did not receive a transcervical inoculation (n=3). One mare not instrumented with an allantoic catheter received 5.1 x 108 CFU live S. zooepidemicus. Mares with spontaneous abortion …

Characterization And Comparison Of Cell Frequency, Growth, And Multipotential Differentiation Of Adult Mesenchymal Stromal Cells Derived From Equine Bone Marrow And Adipose Tissue, Martin Andreas Vidal

LSU Doctoral Dissertations

Equine bone marrow-derived mesenchymal stromal cells (MSCs) and adipose tissue-derived stromal cells (ASCs) were compared for frequency within their respective tissues, cell doubling characteristics and differentiation multipotential in culture based on histochemical staining and compositional analysis. Equine MSCs and ASCs from young adult horses were harvested and isolated from sternal bone marrow and supragluteal subcutaneous adipose tissue, respectively, and grown up to passage 10 (P10) to determine cell doubling characteristics. Limit dilution assays were performed on primary and passaged (P2, P4) MSCs and ASCs to determine the frequency of colony forming units with a fibroblastic phenotype (CFU-F), and the frequency …

Assisted Reproduction Techniques In Horses: The Challenge, Theerawat Tharasanit, Mongkol Techakumphu

The Thai Journal of Veterinary Medicine

Assisted reproduction techniques (ARTs), such as artificial insemination and embryo transfer are well established and have been used in a wide range of species. To date, the economic impact of these ARTs in horses has rapidly increased. While many studies have attempted to improve the efficiency of ARTs, overall success remains relatively restricted due principally to a limited knowledge of the unique reproductive physiology of this species. Improving efficiency of particular techniques has become an affordable milestone in the development of ARTs in equine reproduction.

The Seroprevalence Of Listeria Monocytogenes In Sport Horses Bred In Ankara Province, H. Zeynep Güçlü, K. Zafer Karaer, Cahi̇t Babür, Selçuk Kiliç

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to determine the seroprevalence of Listeria monocytogenes in horses bred for sport in the province of Ankara. Sera collected from 100 clinically healthy horses were tested for the presence of L. monocytogenes antibodies using the Osebold absorption test. Agglutination titers >= 1:100 were accepted as positive results and a seropositivity rate was determined. Of the 100 serum samples, 62 were seropositive for L. monocytogenes antibodies detected at dilutions of 1:100 (n = 29, 46.7%), 1:200 (n = 31, 50%), and 1:400 (n = 2, 3.2%).

Seroepidemiology Of Equine Influenza Virus Infection In Turkey, Veysel Soydal Ataseven, Janet Mary Daly

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to investigate the seroepidemiology of equine influenza infection in Turkey, measured using the haemagglutination inhibition (HI) assay. Serum samples were obtained from 623 equids aged older than 4 years from 5 different geographical regions in Turkey during the years 2003-2005. Antibodies against equine influenza virus (EIV) were found in 194 (31.1%) of the 623 sera. Seropositivity rates were detected as 41.8% (171/409), 12.8% (11/86), and 9.4% (12/128) in horses, mules, and donkeys, respectively. The data revealed that EIV circulates in Turkey at a relatively high rate. Differences in seropositivity rates in Equidae from different …

Characterizing Salmonella Fecal Shedding Among Racehorses In Louisiana, Anna Marie Chapman

LSU Master's Theses

Salmonella is an important intestinal pathogen in horses capable of infecting populations without demonstrating clinical illness. This study was performed to determine the prevalence of Salmonella fecal shedding among racehorses in Louisiana. Three serial fecal samples were collected from 429 Thoroughbred horses housed at four racetracks. Feces were tested for Salmonella by microbiologic culture with selective primary enrichment and delayed secondary enrichment (DSE). Samples were also evaluated for the presence of Salmonella by polymerase chain reaction (PCR) using genus-specific oligonucleotide primers. A total of 7 (1.6%) horses were positive for Salmonella by either primary bacterial culture or DSE and an …

The Prevalence Of Strongyle Infections And Persistent Efficacy Of Pyrantel Embonate, Ivermectin And Moxidectin In Turkish Horses, Veli̇ Yilgör Çirak, Ender Güleğen, Christian Bauer

Turkish Journal of Veterinary & Animal Sciences

Strongyle infection was detected in 68% of 320 horses from 9 farms in western Turkey. Egg counts per gram of faeces (EPG) were more than 950 in half of the animals. The persistent efficacy of 3 different anthelmintics to suppress cyathostome EPG was compared on a horse farm. One group of horses was treated with moxidectin on day 0, and the 2 other groups received pyrantel embonate or ivermectin on days 0 and 70. Pyrantel embonate reduced the EPG by >90% for 2 weeks; thereafter egg counts steadily increased. Ivermectin reduced the EPG by >98% for up to 6 weeks. …

Abortion Due To Streptococcus Equi Subspecies Zooepidemicus In A Mare, A. Levent Kocabiyik, Gürsel Sönmez, Mi̇hri̇ban Ülgen, Cüneyt Özakin, Esra Kocakaya, Ayli̇n Alasonyalilar

Turkish Journal of Veterinary & Animal Sciences

The organs of an aborted equine fetus were examined histopathologically and microbiologically. Diffuse, mild cellular infiltration of neutrophils, lymphocytes and plasma cells was observed in the lamina propria of the intestine. In addition, bacterial colonies were seen in the intestinal content, wall of intestine and liver. Streptococcus equi subsp. zooepidemicus was isolated in pure culture from all organs. This is the first report of the isolation of S. equi subsp. zooepidemicus from an aborted equine fetus in Turkey.

The Effects Of Non-Focused Extracorporeal Shock Waves On Neuronal Morphology, Function And Analgesia In Horses, David Manuel Bolt

LSU Master's Theses

These studies were conducted to elucidate the regional analgesic effect that is observed clinically after treatment of orthopedic disorders with application of extracorporeal shock waves in horses. Regional analgesia after treatment with extracorporeal shock waves presents a concern because it may eliminate protective limiting mechanisms and may place equine athletes with predisposing lesions at risk of sustaining career- or life-ending injuries. Direct percutaneous application of non-focused extracorporeal shock waves to palmar digital nerves in the pastern area of horses resulted in decreased sensory nerve conduction velocities compared with untreated control nerves at 3, 7, and 35 days after treatment. Transmission …

Exercise And Dehydration In The Horse, Prawit Butudom

The Thai Journal of Veterinary Medicine

The intensity and duration of exercise has a major impact on fluid levels, electrolytes and acid-base balance in the horse. The changes range from rapid fluid and electrolyte shifts which accompany high-intensity exercise (VO2 max ≥ 100%) (i.e., racehorse) to substantial fluid and electrolyte depletion during Speed and Endurance Tests as seen at Three-day events. Depletion is also seen during prolonged endurance exercise, in which the horse performs a low-intensity form of exercise (30-60% VO2max). These fluctuations of fluid and electrolyte homeostasis have been implicated in the development of fatigue and can lead to medical problems when exercise is continued …

Paralesional Betamethasone Injections For The Treatment Of Kissing-Spines-Syndrome In A Horse: A Case Report, Voraphan Na Songkhla

The Thai Journal of Veterinary Medicine

A 4-year-old, thoroughbred mare showed clinical signs of back pain and weakness of both hindlimbs. Kissing- Spines-Syndrome (KSS) of the T14-16 dorsal spinous processes were diagnosed from clinical examination and radiography. The horse returned to training after three months and to racing in five months after paralesional betamethasone injections.

Equine Immunity To Cyathostome Infections, Marie Alexandra Baudena

LSU Doctoral Dissertations

To study the protective responses of cyathostome-infected ponies, two challenges were performed employing animals with different histories of exposure to these parasites. The hypothesis developed and to be tested in these experiments was that ponies that had longer exposure to cyathostome contaminated pastures would express acquired resistance to infection. The assumption behind this hypothesis was that helminth-naïve ponies infected with cyathostomes would eliminate the infection using only innate immune responses. Whereas previously exposed ponies would eliminate the infection with acquired immune responses, and these would be more effective in ponies with longer exposure to cyathostomes. Thus, helminth-naïve animals would acquire …

The Prevalences Of Helminth Species According To Faecal Examination In Equids In Different Cities In Turkey, Abdurrahman Gül, Serdar Değer, Erol Ayaz

Turkish Journal of Veterinary & Animal Sciences

The faeces of 464 horses and 110 donkeys were cOllected and examined by the flotation, sedimentation and Baermenn-Wetzel methods in a parasitology laboratory. The examinations showed that 327 of 464 (70.5%) horses and 85 of 110 (77.3%) donkeys were infected with the following species: in horses, Strongylidae sp. 62.7%, Strongyloides westeri 5.8%, Parascaris equorum 3.2%, Anoplocephalidae sp. 2.4 %, Fasciola hepatica 0.9%, Oxyuris equi 0.6%, and Paranoplocephala mamillana 0.2%; and in donkeys; Strongylidae sp. 72.7%, Strongyloides westeri 13.6%, Parascaris equorum 2.7%, Fasciola hepatica 0.9%, Oxyuris equi 0.9% and Dicrocoelium dendriticum 0.9%.

Pituitary Adenoma In A Horse: A Case Report, Nopadon Pirarat, Kohsaku Chijiwa, Pattama Ritruechai, Sawang Kesdangsakonwut, Komkrich Teankum, Wijit Banlunara, Anudep Rungsipipat, Boonmee Sunyasutjaree

The Thai Journal of Veterinary Medicine

A female, grey, 24-year-old horse was showing clinical signs of weight loss, ataxia, hersutism, high fever, dysuria, nasal discharge and moist rale lung sounds. Gross examination revealed a single, white, firm, pituitary mass with a diameter 2.5 x 2.1 x 1.5 cm, compressed and overlying the hypothalamus. Histopathological and immunohistochemical examinations revealed the characteristic of a ACTH-derived pituitary adenoma.

Seronegative Findings On The Investigations Of Equine Infectious Anemia In The Marmara Region Of Turkey, Nuri̇ Turan, Hüseyi̇n Yilmaz, Abdülkadi̇r Uysal, Murat Arslan

Turkish Journal of Veterinary & Animal Sciences

A total of 404 horses was examined from the selected cities (Istanbul, Bursa, Balıkesir) of the Marmara region of Turkey. Blood was collected from all horses and the sera were analyzed for the presence of antibodies to equine infectious anemia virus (EIAV) using an agar gel immunodiffusion (AGID) test. The results revealed that none of the horses were positive for antibodies to EIAV.

Dentigerous Cyst In A Thoroughbred Colt: A Case Report, Atichat Brahmasa, Marissak Kalpravidh, Chanin Kalpravidh

The Thai Journal of Veterinary Medicine

This paper reports surgical resection of a dentigerous cyst from a thoroughbred colt that had persistent seromucous discharge through a small opening at the base of the right pinna for one month.Healing was uneventful after the cyst, as well as the fistulous tract, was totally removed. An aberranttooth of molar liked appearance was found within the cyst.

Studies On The Mitral Valves And Measurements Of End-Diastolic, End-Systolic And Heart Minute Volume, And Myocardial Contractibility Indices Of English Racing And Show-Jumping Horses Using M-Mode Echocardiography, Tarik Bi̇lal

Turkish Journal of Veterinary & Animal Sciences

In this study, mitral valves, left ventricle volume and myocardial contractibility indices in English racing (n:30) and show-jumping horses (n:30) were investigated using M-mode echocardiography. The percentages of fractional shortening (% EF), ejection fraction (% EF), and the mean velocity of circumferential shortening (Vcf) were determined on each of three transducer positions. Mitral valve amplitude and slope measurements on transducer III position and left ventricle volume measurements on transducer I, II and III positions were taken and the average of all measurements were calculated. A significant difference between the amplitude of CE and DE of the mitral valvle in racing …

Effect Of Amitraz And Xylazine On Some Physiological Variables Of Horses, A. Queiroz-Neto, A. B. Carregaro, G. Zamur, J Daniel Harkins, Thomas Tobin, M. I. Mataqueiro, S. C. Gonçalves

Maxwell H. Gluck Equine Research Center Faculty Publications

The effect of the intravenous injection of amitraz (0.1 mg/kg) to horses on cardiac activity, respiratory rate, intestinal motor activity, rectal temperature, sweating and masticating was evaluated and compared to the effect of intravenous administration of xylazine (1mg/kg, iv) on heart rate, respiratory rate and intestinal activity. Amitraz caused a significant decrease in heart activity, respiratory rate and intestinal movements, but these effects were not as pronounced as those caused by xylazine. Amitraz also caused a significant relaxation of the rectal smooth muscle, and an apparent increase in sweating and in the frequency of horses found masticating hay. Rectal temperature …

Determination Of The Association Between Heart Diameter And Myocardial Thickness With Body Weights In English Racing Horses By M-Mode Echocardiography, Tarik Bi̇lal, Yücel Meral

Turkish Journal of Veterinary & Animal Sciences

In this study, the heart structures of 30 English racing horses with different weights were examined by M-mode echocardiography. Horses were separated into 3 groups of 10 horses. Group A consisted of the horses weighing between 350 and 400 kg, group B between 400 and 450 kg, and group C between 450 and 500 kg. M-mode sections were taken from transducer I (M. papillaris), transducer II (C. tendinei), transducer III (Mitral valve) and trans- ducer IV (Aortic root) using 2-D and measurements were made in four standard-transducer positions. The internal dimension of the left ventricle, the myocardial thickness of the …

Disturbances Observed By Endoscopic Examination Of The Upper Respiratory Airway Tract In Horses, Hüseyi̇n Tan, Alev Akdoğan Kaymaz, Cengi̇z Yilgin, Remzi̇ Gönül

Turkish Journal of Veterinary & Animal Sciences

The upper respiratory airways of 367 horses that were healthy but had poor performance in races were examined by endoscope. Disturbances were observed in the following percentages: nasopharyngeal follicular hyperplasia 65.49%, entrapment of the epiglottis 12.3%, larve of Rhinoestrus equi 13.6%, anomalia of the epiglottis 0.27%, neoplasm of the nasopharynx and larynx 87%, left pharyngeal hemiplegia 1.63%, deformation of the nasal bone 0.27% and damaged nasopharynx 0.54%. The aetiology and pathogenesis of these disturbances and their effects on racing performance were investigated.

Efficacy Of Moxidectin Against Strongylin Nematodes In Naturally Infected Horses, Aynur Gülanber, Erkut Tüzer, Ayşen Gargili, Müfit Toparlak, İlker Efi̇l, Vedat Keleş, Meltem Ulutaş

Turkish Journal of Veterinary & Animal Sciences

Twenty naturally infected horses were divided into two groups (10 control and 10 experimental) according to EPG values. An injectable formulation of moxidectin, in a dose of 0.3 mg/kg, was given to the horses orally in jam syrup. The evaluation of drug efficacy was based on EPG values. The same dose of the drug was applied to an additional 25 horses to test for side effects. The drug was found to be highly effective (100%) against strongylin parasites on days 7, 14. and 21. No side effects were observed.

Bulletin No 3863 - Plants Which Cause Kimberley Horse Disease, A. L. Payne

Bulletins - 3000 - 3999

Crotalaria crispata and Crotalaria retusa (Rattlepod), two plants responsible for Kimberley horse disease*, are, unfortunately, fairly widespread throughout the Kimberleys. Both species are apparently toxic in all stages of growth.

This bulletin is to assist pastoralists to:-

• Identify the two plants;

• Recognise the type of country and conditions under which they grow; and

• Locate horse paddocks on country where the plants are least likely to occur.