The Morphology And Evolution Of The Primate Brachial Plexus, 2019 The Graduate Center, City University of New York
The Morphology And Evolution Of The Primate Brachial Plexus, Brian M. Shearer
Dissertations, Theses, and Capstone Projects
Primate evolutionary history is inexorably linked to the evolution of a broad array of locomotor adaptations that have facilitated the clade’s invasion of new niches. Researchers studying the evolution of primates and of their individual locomotor adaptations have traditionally relied on bony morphology – a practical choice given the virtual non-existence of any other type of tissue in the fossil record. However, this focus downplays the potential importance of the many other structures involved in locomotion, such as muscle, cartilage, and neural tissue, which may each be influenced by separate selective forces because of their different roles in facilitating movement ...
Diversidad Y Distribución De Mamíferos Voladores En El Corregimiento De Punto Nuevo Municipio De Yopal, Casanare Y Su Impacto En La Comunidad, 2019 Universidad de La Salle, Bogotá
Diversidad Y Distribución De Mamíferos Voladores En El Corregimiento De Punto Nuevo Municipio De Yopal, Casanare Y Su Impacto En La Comunidad, Karen Lorena Navarro Leal
Los llanos Orientales se distinguen por su variedad de ecosistemas, los cuales albergan una gran diversidad de especies de mamíferos arborícolas, terrestres, voladores, acuáticos y semiacuáticos, encontrándose allí ´´especies clave´´ con mayor importancia ecológica, ya que su deterioro o desaparición podría ocasionar daños irreversibles en el ecosistema. Por su parte, los murciélagos actúan como agentes de control biológico, hacen posible la polinización y están implicados en procesos de dispersión de semillas, siendo estos, ´´especies clave´´ en el equilibrio ecosistémico preservando la biodiversidad de un bosque. Sin embargo, a pesar de su gran valor ecológico se encuentran sujetos a innumerables conflictos ...
Improving Techniques To Study Equine Cervical Mucociliary Clearance, 2018 University of Maine
Improving Techniques To Study Equine Cervical Mucociliary Clearance, Melissa A. Hawkes
Electronic Theses and Dissertations
Bacterial uterine infections inflict major losses on the equine breeding industry. These infections usually arise from bacteria introduced at breeding. Micro-currents propelled by ciliated cells between the folds of the uterus and cervix have been proposed as a means by which contaminants are expelled. Previous data have shown possible ciliary micro-currents propelling carbon particles, occasionally rotating, through cervical folds. However, adherence to the epithelium may have interfered with movement of carbon in these studies. Therefore, we tested potentially non-adherent substances to reveal ciliary micro-currents on the equine cervix under high magnification video-endoscopy. We hypothesized that polyethylene green microspheres 1 - 5 ...
Human Induced Rotation And Reorganization Of The Brain Of Domestic Dogs, 2018 University of Sydney
Human Induced Rotation And Reorganization Of The Brain Of Domestic Dogs, Taryn Roberts, Paul Mcgreevy, Michael Valenzuela
Paul McGreevy, PhD
Domestic dogs exhibit an extraordinary degree of morphological diversity. Such breed-to-breed variability applies equally to the canine skull, however little is known about whether this translates to systematic differences in cerebral organization. By looking at the paramedian sagittal magnetic resonance image slice of canine brains across a range of animals with different skull shapes (N = 13), we found that the relative reduction in skull length compared to width (measured by Cephalic Index) was significantly correlated to a progressive ventral pitching of the primary longitudinal brain axis (r = 0.83), as well as with a ventral shift in the position of ...
Long-Term Outcome And Complications Of 32 Distal Femoral Osteotomies Performed For Correction Of Mpl In Dogs Without Cranial Cruciate Disease, Nicholas Crawfis
Williams Honors College, Honors Research Projects
Many canines suffer severe, grade I-IV, medial patella luxation causing a persistent lameness, severely reducing the quality of life for the dog (Linney et al 2011). For these patients surgical intervention is recommended to alleviate these symptoms. The procedure used to do so is a distal femoral osteotomy (DFO). This procedure allows for correction of torsion in the femur and quadriceps mechanism, and frontal plane abnormalities at the same time. The present study aims to describe the long-term outcome and related complications of 32 DFOs, without concomitant Cranial Cruciate Ligament rupture (CCLR), in a large private practice referral hospital based ...
Rehabilitation Of An Injured Golden Eagle (Aquila Chrysaetos): A Case Study, 2017 Centre for Bioresource Research (CBR), Islamabad
Rehabilitation Of An Injured Golden Eagle (Aquila Chrysaetos): A Case Study, Fida Muhammad Khan, Fakhar-I- Abbas, Abu Ul Hassan Faiz
Journal of Bioresource Management
Habitat destruction and anthropogenic activities cause wild birds to migrate towards urban areas in search of food and sometimes nesting in high-roof buildings, where they are caught by local people using different techniques and are further used for hunting or recreational purposes. An injured Golden Eagle (Aquila chrysaetos) was found entangled in bushes near the vicinity of Balkasar Research Complex, Chakwal, Pakistan. After complete physical examination, a wound on the right wing and closed leg fracture was diagnosed. The successful treatment was done by anti-parasitic and anti-bacterial drugs with careful monitoring. Splint was adjusted after aligning the fractured bones to ...
Tear Fluid Collection In Dogs And Cats Using Ophthalmic Sponges, 2017 Iowa State University
Tear Fluid Collection In Dogs And Cats Using Ophthalmic Sponges, Lionel Sebbag, Danielle M. Harrington, Jonathan P. Mochel
Veterinary Clinical Sciences Publications
Objective - To compare the use of two ophthalmic sponges for tear collection in dogs and cats. Animals studied - Ten healthy dogs and 10 healthy cats.
Procedures - A strip (4x10 mm) of either cellulose or polyvinyl acetal (PVA) sponge was inserted into the ventral fornix of each eye for either 15, 30 or 60 seconds. The wetted strip was placed into a 0.2-mL tube that was first punctured at its bottom. Tears were eluted through the drainage hole into a 1.5-mL tube via centrifugation. Tear volume absorbed (VA) and tear volume recovered (VR) were calculated as the difference of ...
Absence Of Typical Haversian System From The Compact Bone Of Some Reptile And Bird Species, 2017 South Valley University
Absence Of Typical Haversian System From The Compact Bone Of Some Reptile And Bird Species, Yasser Ahmed, Mohamed Abdelsabourv Khalaf, Fatma Khalil
Background and Objective: Mammalian compact bone is composed mostly of Haversian system. Although there are many studies describing the typical Haversian system in mammals, there are few studies conducted on bones from non-mammalian species. The objective of the current study was to investigate the existence of the typical Haversian system in compact bones from reptiles and birds.
Materials and Methods: Femora were collected from geckos, Nile monitors, sparrows, ducks and geese. Samples were then, fixed in 10% paraformaldehyde and embedded in paraffin. Paraffin sections were stained with hematoxylin and eosin or Von Kossa and then examined using light microscopy.
Developing Learning Models To Teach Equine Anatomy And Biomechanics, 2017 University of Maine
Developing Learning Models To Teach Equine Anatomy And Biomechanics, Zandalee E. Toothaker
Animal owners and professionals benefit from an understanding of an animal’s anatomy and biomechanics. This is especially true of the horse. A better understanding of the horse’s anatomy and weight bearing capabilities will allow people to treat and prevent injuries in equine athletes and work horses. Currently, teaching anatomy is based on dissection of cadavers and study of figures in textbooks. Dissection is expensive and presents logistical difficulties associated with sourcing, storage, and disposal of cadavers. Also, post mortem tissue changes obscure how the muscles support the bones and make the specimens unsuitable for representing biomechanical principles. Cadavers ...
Effects Of 17Β Estradiol In The Metabolism And Morphology Of Bluegill Sunfish (Lepomis Macrochirus), 2017 Eastern Illinois University
Effects Of 17Β Estradiol In The Metabolism And Morphology Of Bluegill Sunfish (Lepomis Macrochirus), Neeta Parajulee Karki
Fish natural habitats are increasingly contaminated with various estrogenic compounds, including 17β estradiol (E2). This compound causes adverse effects on the reproductive system of male fish; however, the effects of E2 on other aspects of fish metabolism, morphology and histopathological changes in internal organs are not well known. The objective of this study is to evaluate the effects of E2 exposure on the basal and stressed metabolic rate, morphological changes in body shapes, and histological changes in the liver tissues of sunfish species. Fish were held individually in ten gallon tanks under two treatments of 40 and 80 ng/L ...
Methods And Processes Of Developing The Strengthening The Reporting Of Observational Studies In Epidemiology – Veterinary (Strobe-Vet) Statement, J. M. Sargeant, Annette M. O'Connor, I. R. Dohoo, H. N. Erb, M. Cevallos, M. Egger, A. K. Ersboll, S. W. Martin, L. R. Nielsen, D. L. Pearl, D. U. Pfeiffer, J. Sanchez, M. E. Torrence, H. Vigre, C. Waldner, M. P. Ward
Veterinary Diagnostic and Production Animal Medicine Publications
The reporting of observational studies in veterinary research presents many challenges that often are not adequately addressed in published reporting guidelines. A consensus meeting of experts was organized to develop an extension of the STROBE statement to address observational studies in veterinary medicine with respect to animal health, animal production, animal welfare and food safety outcomes. The consensus meeting was held 11–13 May 2014 in Mississauga, Ontario, Canada. Seventeen experts from North America, Europe and Australia attended the meeting. The experts were epidemiologists and biostatisticians, many of whom hold or have held editorial positions with relevant journals. Prior to ...
Explanation And Elaboration Document For The Strobe-Vet Statement: Strengthening The Reporting Of Observational Studies In Epidemiology – Veterinary Extension, Annette M. O'Connor, J. M. Sargeant, I. R. Dohoo, H. N. Erb, M. Cevallos, M. Egger, A. K. Ersboll, S. W. Martin, L. R. Nielsen, D. L. Pearl, D. U. Pfeiffer, J. Sanchez, M. E. Torrence, H. Vigre, C. Waldner, M. P. Ward
Veterinary Diagnostic and Production Animal Medicine Publications
The STROBE (Strengthening the Reporting of Observational Studies in Epidemiology) statement was first published in 2007 and again in 2014. The purpose of the original STROBE was to provide guidance for authors, reviewers and editors to improve the comprehensiveness of reporting; however, STROBE has a unique focus on observational studies. Although much of the guidance provided by the original STROBE document is directly applicable, it was deemed useful to map those statements to veterinary concepts, provide veterinary examples and highlight unique aspects of reporting in veterinary observational studies. Here, we present the examples and explanations for the checklist items included ...
Morphological And Biochemical Adaptive Changes Associated With A Short-Period Starvation Of Adult Male Japanese Quail (Coturnix Japonica), Yasser Ahmed, Soha A. Soliman, Mohammed Abdelsabour-Khalaf
Objective: The morphological and biochemical impact of a short-period of starvation on Japanese quail was investigated.
Materials and Methods: Ten adult male Japanese quail were divided into two groups; control fed and starved. The control-fed group was offered food and water ad libitum and the starved group was subjected to a short-period of food deprivation. After 2.5 days, the serum was obtained and different parameters including the total protein, AST, ALT, triglyceride, HDL, LDL, creatinine and urea were assessed. Gastrointestinal tract, stomach and liver were excised and their masses were estimated. Paraffin and resin embedded sections from the proventriculus ...
Potential For Meta-Analysis In The Realm Of Preharvest Food Safety, 2016 Ontario Veterinary College
Potential For Meta-Analysis In The Realm Of Preharvest Food Safety, Jan M. Sargeant, Annette M. O'Connor
Veterinary Diagnostic and Production Animal Medicine Publications
Meta-analysis, the statistical combination of results from multiple studies, can be used to summarize all of the available research on an intervention, etiology, descriptive, or diagnostic test accuracy question. Meta-analysis should be conducted as a component of a systematic review, to increase transparency in the selection of studies and to incorporate an evaluation of the risk of bias in the individual studies included in the meta-analysis. The process of meta-analysis may include a forest plot to graphically display the study results and the calculation of a weighted average summary effect size. Heterogeneity (differences in the effect size between studies) can ...
Social Deprivation Of Infant Rhesus Monkeys Alters The Chemoarchitecture Of The Brain: I. Subcortical Regions, 2016 Johns Hopkins University
Social Deprivation Of Infant Rhesus Monkeys Alters The Chemoarchitecture Of The Brain: I. Subcortical Regions, Lee J. Martin, Dawn M. Spicer, Mark H. Lewis, John P. Gluck, Linda C. Cork
John P. Gluck, PhD
Rhesus monkeys (Macaca mulatta) reared during the first year of life without social contact develop persistent stereotyped movements, self-directed behaviors, and psychosocial abnormalities, but neurobiological mechanisms underlying the behaviors of socially deprived (SD) monkeys are unknown. Monkeys were reared in total social deprivation for the first 9 months of life; control monkeys were reared socially (SR) with mothers and peers. Subjects were killed at 19-24 yr of age. Because the behaviors of SD monkeys are reminiscent of changes in striatal or amygdalar function, we used immunocytochemistry for substance P (SP), leutine-enkephalin (LENK), somatostatin, calbindin, and tyrosine hydroxylase (TH) to evaluate ...
Development Of A Novel Ex Vivo Equine Corneal Model, 2016 University of Missouri, Columbia
Development Of A Novel Ex Vivo Equine Corneal Model, Todd L. Marlo, Elizabeth A. Giuliano, Ajay Sharma, Rajiv R. Mohan
Pharmacy Faculty Articles and Research
To develop an ex vivo equine corneal organ culture model. Specifically, to assess the equine cornea's extracellular matrix and cellularity after 7 days using two different culture techniques: either (i) immersion system or (ii) air/liquid interface system, to determine the best ex vivo equine corneal model.
Fourteen healthy equine corneas of various breeds.
Equine corneas with 2 mm of perilimbal sclera were freshly harvested from 7 horses undergoing humane euthanasia. One corneal–scleral ring (CSR) from each horse was randomly placed in the (i) immersion condition organ culture system (IC), with the contralateral CSR ...
Microhabitat Use Affects Brain Size And Structure In Intertidal Gobies, 2016 Macquarie University
Microhabitat Use Affects Brain Size And Structure In Intertidal Gobies, Gemma E. White, Culum Brown
Culum Brown, PhD
The ecological cognition hypothesis poses that the brains and behaviours of individuals are largely shaped by the environments in which they live and the associated challenges they must overcome during their lives. Here we examine the effect of environmental complexity on relative brain size in 4 species of intertidal gobies from differing habitats. Two species were rock pool specialists that lived on spatially complex rocky shores, while the remainder lived on dynamic, but structurally simple, sandy shores. We found that rock pool-dwelling species had relatively larger brains and telencephalons in particular, while sand-dwelling species had a larger optic tectum and ...
Variation In Brain Morphology Of Intertidal Gobies: A Comparison Of Methodologies Used To Quantitatively Assess Brain Volumes In Fish, Gemma E. White, Culum Brown
Culum Brown, PhD
When correlating brain size and structure with behavioural and environmental characteristics, a range of techniques can be utilised. This study used gobiid fishes to quantitatively compare brain volumes obtained via three different methods; these included the commonly used techniques of histology and approximating brain volume to an idealised ellipsoid, and the recently established technique of X-ray micro-computed tomography (micro-CT). It was found that all three methods differed significantly from one another in their volume estimates for most brain lobes. The ellipsoid method was prone to over- or under-estimation of lobe size, histology caused shrinkage in the telencephalon, and although micro-CT ...
The Relationship Between Canine Nasal Length And Second-Hand Smoke Cotinine Levels, 2016 Murray State University
The Relationship Between Canine Nasal Length And Second-Hand Smoke Cotinine Levels, Sierra Wilson, Terry Derting
Second-hand smoke (SHS) has been associated with respiratory cancers in canines, with the predisposed locations determined by the cephalic ratio (head length / head width). Exposure to SHS is frequently measured by analyzing urine or blood samples for the nicotine by-product cotinine. We investigated the suitability of saliva as an alternative source for cotinine analyses in dogs because obtaining saliva is less invasive and cotinine concentrations from SHS exposure are instantaneously measurable in saliva compared to other collection methods. Specifically, we tested for a quantitative relationship between cephalic ratio and the salivary concentration of cotinine. Our null hypothesis was that there ...
Differential Gene Expression In Equine Cartilaginous Tissues And Induced Chondrocytes, 2016 University of Kentucky
Differential Gene Expression In Equine Cartilaginous Tissues And Induced Chondrocytes, Emma N. Adam
Theses and Dissertations--Veterinary Science
Degenerative joint disease, or osteoarthritis, is a major cause of lameness and morbidity in horses, humans, and dogs. There are no truly satisfactory cures for this widespread problem and current treatments all have limitations or unwanted side effects.
New cell-based strategies to repair joint surface lesions have generated a high level of interest, but have yet to achieve the full restoration of articular cartilage structure and function. Currently used therapy cells include autologous chondrocytes and adult mesenchymal cells such as bone marrow derived cells and adipose derived cells. Unfortunately, the resultant repair tissue is biomechanically inferior fibrocartilage. A critical gap ...