Records |
Author |
Sebastiani, F.; Meiswinkel, R.; Gomulski, L.M.; Guglielmino, C.R.; Mellor, P.S.; Malacrida, A.R.; Gasperi, G. |
Title |
Molecular differentiation of the Old World Culicoides imicola species complex (Diptera, Ceratopogonidae), inferred using random amplified polymorphic DNA markers |
Type |
Journal Article |
Year |
2001 |
Publication |
Molecular Ecology |
Abbreviated Journal |
Mol Ecol |
Volume |
10 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
1773-1786 |
Keywords |
Africa; Animals; Ceratopogonidae/*classification/*genetics; Ecology; Evolution, Molecular; Female; *Genetic Markers; Madagascar; Phylogeny; *Polymorphism, Genetic; *Random Amplified Polymorphic DNA Technique; Variation (Genetics) |
Abstract |
Samples of seven of the 10 morphological species of midges of the Culicoides imicola complex were considered. The importance of this species complex is connected to its vectorial capacity for African horse sickness virus (AHSV) and bluetongue virus (BTV). Consequently, the risk of transmission may vary dramatically, depending upon the particular cryptic species present in a given area. The species complex is confined to the Old World and our samples were collected in Southern Africa, Madagascar and the Ivory Coast. Genomic DNA of 350 randomly sampled individual midges from 19 populations was amplified using four 20-mer primers by the random amplified polymorphic DNA (RAPD) technique. One hundred and ninety-six interpretable polymorphic bands were obtained. Species-specific RAPD profiles were defined and for five species diagnostic RAPD fragments were identified. A high degree of polymorphism was detected in the species complex, most of which was observed within populations (from 64 to 76%). Principal coordinate analysis (PCO) and cluster analysis provided an estimate of the degree of variation between and within populations and species. There was substantial concordance between the taxonomies derived from morphological and molecular data. The amount and the different distributions of genetic (RAPD) variation among the taxa can be associated to their life histories, i.e. the abundance and distribution of the larval breeding sites and their seasonality. |
Address |
Department of Animal Biology, Laboratory of Zoology, University of Pavia, Piazza Botta 9, I-27100 Pavia, Italy |
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English |
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ISSN |
0962-1083 |
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Notes |
PMID:11472544 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2647 |
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Author |
Hazem, A.S. |
Title |
[Collective review: Salmonella paratyphi in animals and in the environment] |
Type |
Journal Article |
Year |
1978 |
Publication |
DTW. Deutsche Tierarztliche Wochenschrift |
Abbreviated Journal |
Dtsch Tierarztl Wochenschr |
Volume |
85 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
296-303 |
Keywords |
Animals; Animals, Domestic; Animals, Wild; Bird Diseases/epidemiology; Brachyura; Cat Diseases/epidemiology; Cats; Cattle; Cattle Diseases/epidemiology; Dog Diseases/epidemiology; Dogs; Ecology; Environment; Fish Diseases/epidemiology; Germany, West; Horse Diseases/epidemiology; Horses; Mollusca; Poultry Diseases/epidemiology; Salmonella Infections, Animal/*epidemiology; *Salmonella paratyphi A; Sheep; Sheep Diseases/epidemiology; Snails; Swine; Swine Diseases/epidemiology |
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German |
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Sammelreferat: Salmonella paratyphi bei Tieren und in der Umwelt |
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0341-6593 |
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Notes |
PMID:352661 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2698 |
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Author |
Pickens, C.L.; Holland, P.C. |
Title |
Conditioning and cognition |
Type |
Journal Article |
Year |
2004 |
Publication |
Neuroscience and Biobehavioral Reviews |
Abbreviated Journal |
Neurosci Biobehav Rev |
Volume |
28 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
651-661 |
Keywords |
Animals; Association Learning/physiology; Cognition/*physiology; Conditioning (Psychology)/*physiology; Discrimination Learning/physiology; Humans; Memory; Models, Psychological; Reinforcement (Psychology); Visual Perception/physiology |
Abstract |
Animals' abilities to use internal representations of absent objects to guide adaptive behavior and acquire new information, and to represent multiple spatial, temporal, and object properties of complex events and event sequences, may underlie many aspects of human perception, memory, and symbolic thought. In this review, two classes of simple associative learning tasks that address these core cognitive capacities are discussed. The first set, including reinforcer revaluation and mediated learning procedures, address the power of Pavlovian conditioned stimuli to gain access, through learning, to representations of upcoming events. The second set of investigations concern the construction of complex stimulus representations, as illustrated in studies of contextual learning, the conjunction of explicit stimulus elements in configural learning procedures, and recent studies of episodic-like memory. The importance of identifying both cognitive process and brain system bases of performance in animal models is emphasized. |
Address |
Department of Psychological and Brain Sciences, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA |
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English |
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Series Volume |
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Edition |
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ISSN |
0149-7634 |
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Notes |
PMID:15555675 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2803 |
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Author |
Sarter, M. |
Title |
Animal cognition: defining the issues |
Type |
Journal Article |
Year |
2004 |
Publication |
Neuroscience and Biobehavioral Reviews |
Abbreviated Journal |
Neurosci Biobehav Rev |
Volume |
28 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
645-650 |
Keywords |
Animals; Behavior, Animal/*physiology; Cognition/*physiology; Humans; *Models, Animal; Psychopharmacology/methods; Reproducibility of Results |
Abstract |
The assessment of cognitive functions in rodents represents a critical experimental variable in many research fields, ranging from the basic cognitive neurosciences to psychopharmacology and neurotoxicology. The increasing use of animal behavioral tests as 'assays' for the assessment of effects on learning and memory has resulted in a considerable heterogeneity of data, particularly in the field of behavioral and psycho pharmacology. The limited predictive validity of changes in behavioral performance observed in standard animal tests of learning and memory indicates that a renewed effort to scrutinize the validity of these tests is warranted. In humans, levels of processing (effortful vs. automatic) and categories of information (procedural vs. episodic/declarative) are important variables of cognitive operations. The design of tasks that assess the recall of 'episodic' or 'declarative' information appears to represent a particular challenge for research using laboratory rodents. For example, the hypothesis that changes in inspection time for a previously encountered place or object are based on the recall of declarative/episodic information requires substantiation. In order to generalize findings on the effects of neuronal or pharmacological manipulations on learning and memory, obtained from one species and one task, to other species and other tasks, the mediating role of important sets of variables which influence learning and memory (e.g. attentional, affective) needs to be determined. Similar to the view that a neuronal manipulation (e.g. a lesion) represents a theory of the condition modeled (e.g. a degenerative disorder), an animal behavioral task represents a theory of the behavioral/cognitive process of interest. Therefore, the test of hypotheses regarding the validity of procedures used to assess cognitive functions in animals is an inherent part of the research process. |
Address |
Department of Psychology, University of Michigan, 4032 East Hall, 525 E. University Avenue, Ann Arbor, MI 48109-1109, USA. msarter@umich.edu |
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English |
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ISSN |
0149-7634 |
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Notes |
PMID:15555674 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2804 |
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Author |
Hoy, R. |
Title |
Animal awareness: The (un)binding of multisensory cues in decision making by animals |
Type |
Journal Article |
Year |
2005 |
Publication |
Proceedings of the National Academy of Sciences of the United States of America |
Abbreviated Journal |
Proc. Natl. Acad. Sci. U.S.A. |
Volume |
102 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
2267-2268 |
Keywords |
Animals; Anura/physiology; *Awareness; *Behavior, Animal; Decision Making; Female; Male; Perception; Sensation |
Abstract |
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Address |
Department of Neurobiology and Behavior, 215 Mudd Hall, Cornell University, Ithaca, NY 14850, USA. rrh3@cornell.edu |
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English |
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ISSN |
0027-8424 |
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Notes |
PMID:15703288 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2821 |
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Author |
Anderson, T.M.; McIlwraith, C.W.; Douay, P. |
Title |
The role of conformation in musculoskeletal problems in the racing Thoroughbred |
Type |
Journal Article |
Year |
2004 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
Volume |
36 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
571-575 |
Keywords |
Animals; Carpus, Animal/anatomy & histology/physiology; Horse Diseases/etiology/*pathology/surgery; Horses/*anatomy & histology/injuries/physiology; Likelihood Functions; Logistic Models; Muscle, Skeletal/*anatomy & histology/pathology; Musculoskeletal Diseases/pathology/surgery/*veterinary; Tarsus, Animal/anatomy & histology/physiology; Treatment Outcome |
Abstract |
REASONS FOR PERFORMING STUDY: The relationship of conformation to future potential injury is a standard approach in practise but, at present, is largely based on subjective observations. OBJECTIVE: To measure conformation in 3-year-old Thoroughbreds and objectively test its relationship with the occurrence of musculoskeletal problems. METHODS: Conformation measurements were taken from photographs using specific reference points marked on the horses and processed on the computer. Clinical observations were recorded for each horse on a regular basis. Stepwise (forward) logistic regression analysis was performed to investigate the relationship between the binary response of the clinical outcomes probability and the conformation variables by the method of maximum likelihood. RESULTS: Clinical outcomes significantly (P<0.05) associated with conformational variables included effusion of the front fetlock, effusion of the right carpus, effusion of the carpus, effusion of the hind fetlock, fracture of the left or right carpus, right front fetlock problem and hind fetlock problem. CONCLUSIONS: Offset knees (offset ratio) contributed to fetlock problems. Long pasterns increased the odds of a fracture in the front limb. An increase in the carpal angle as viewed from the front (carpal valgus) may serve as a protective mechanism, as the odds for a carpal fracture and carpal effusion decreased with an increase in the carpal angle. POTENTIAL RELEVANCE: This study demonstrates relationships between conformation and musculoskeletal disease in the racehorse. The information may be useful in selection and management of the racing Thoroughbred. |
Address |
Colorado State University, Equine Science and Equine Orthopaedic Research Programs, Fort Collins, Colorado 80523, USA |
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English |
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Series Issue |
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Edition |
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ISSN |
0425-1644 |
ISBN |
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Area |
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Conference |
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Notes |
PMID:15581320 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
3697 |
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Author |
Marc, M.; Parvizi, N.; Ellendorff, F.; Kallweit, E.; Elsaesser, F. |
Title |
Plasma cortisol and ACTH concentrations in the warmblood horse in response to a standardized treadmill exercise test as physiological markers for evaluation of training status |
Type |
Journal Article |
Year |
2000 |
Publication |
Journal of Animal Science |
Abbreviated Journal |
J. Anim Sci. |
Volume |
78 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
1936-1946 |
Keywords |
Adrenocorticotropic Hormone/*blood/diagnostic use; Animals; Catheterization/veterinary; Exercise Test; Horses/*blood; Hydrocortisone/*blood; Male; *Physical Conditioning, Animal |
Abstract |
Reliable physiological markers for performance evaluation in sport horses are missing. To determine the diagnostic value of plasma ACTH and cortisol measurements in the warmblood horse, 10 initially 3-yr-old geldings of the Hannovarian breed were either exposed to a training schedule or served as controls. During experimental Phase 1, horses were group-housed, and half of the horses were trained for 20 wk on a high-speed treadmill. During Phase 2, groups were switched and one group was trained for 10 wk as during Phase 1, whereas the control group was confined to boxes. During Phase 3 horses were initially schooled for riding. Thereafter, all horses were regularly schooled for dressage and jumping, and half of the horses received an additional endurance training for 24 wk. During all phases horses were exposed at regular intervals to various standardized treadmill exercise tests. During and after the tests frequent blood samples were taken from an indwelling jugular catheter for determination of ACTH and cortisol. Treadmill exercise increased both hormones. Maximum ACTH concentrations were recorded at the end of exercise, and maximum cortisol levels were recorded 20 to 30 min later. Except for one test there were no differences in ACTH levels between trained horses and controls. There was no significant effect of training on the cortisol response (net increase) to treadmill exercise in any of the tests during Phase 1. During Phase 2 higher cortisol responses were recorded in controls than in trained horses (P < .05) after 10 wk of training (controls confined to boxes). During Phase 3 plasma cortisol responses were also higher in controls than in trained horses (P < .05 after 6, 18, and 24, P < or = .07 after 12 wk of training) when the inclination of the treadmill was 5%, but not at 3%. There was no overlap in net cortisol responses at 30 min between trained and untrained horses. An ACTH application after 24 wk of training resulted in higher cortisol responses in controls than in trained horses (P < or = .05), without any overlap between the groups at 30 min after ACTH. Plasma cortisol responses to either treadmill exercise or ACTH injection may be a reliable physiological marker for performance evaluation. Prerequisites are sufficient differences in training status and sufficient intensity of exercise test conditions. |
Address |
Institute of Animal Science and Animal Behaviour, Federal Agricultural Research Center (FAL) Mariensee, Neustadt, Germany |
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English |
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ISSN |
0021-8812 |
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Notes |
PMID:10907837 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
3732 |
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Author |
Clayton, H.M. |
Title |
Comparison of the stride kinematics of the collected, medium, and extended walks in horses |
Type |
Journal Article |
Year |
1995 |
Publication |
American Journal of Veterinary Research |
Abbreviated Journal |
Am J Vet Res |
Volume |
56 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
849-852 |
Keywords |
Analysis of Variance; Animals; *Gait; Horses/*physiology; *Locomotion; Motion Pictures; Physical Conditioning, Animal; Walking |
Abstract |
Six horses, highly trained for dressage competition, were used to study the stride kinematics of the walk, and to compare the kinematics of the collected, medium, and extended walks. Horses were filmed in a sagittal plane at a rate of 150 frames/s; temporal, linear, and angular data were extracted from the films. Results of ANOVA and Duncan's multiple range test indicated that the speed of the collected walk (1.37 m/s) was significantly (P < 0.01) slower than that of the medium (1.73 m/s) and extended (1.82 m/s) walks, values for which were not significantly different from each other. The increase in speed was associated with a significant increase in stride length, from 157 cm in the collected walk to 193 cm in the extended walk. This was a result of an increase in the over-tracking distance, whereas there was no significant difference in the distance between lateral placements of the limbs. Stride duration decreased (P < 0.01) from the collected walk (1,159 ms) to the extended walk (1,064 ms). Angles of the metacarpal and metatarsal segments, measured on the palmar/ plantar aspect, were higher at impact and lower at lift off in the collected than in the extended walk (P < 0.01). This indicated greater range of angular motion of this segment during the stance phase in the extended walk. Only 1 of the 6 horses had a regular 4-beat rhythm of the footfalls, with equal time elapsing between the lateral and diagonal footfalls. |
Address |
Department of Veterinary Anatomy, Western College of Veterinary Medicine, Canada |
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English |
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Edition |
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ISSN |
0002-9645 |
ISBN |
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Notes |
PMID:7574149 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
3743 |
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Author |
Dart, A.J.; Snyder, J.R.; Pascoe, J.R.; Meagher, D.M.; Wilson, W.D. |
Title |
Prepurchase evaluation of horses: 134 cases (1988-1990) |
Type |
Journal Article |
Year |
1992 |
Publication |
Journal of the American Veterinary Medical Association |
Abbreviated Journal |
J Am Vet Med Assoc |
Volume |
201 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
1061-1067 |
Keywords |
Animals; Follow-Up Studies; Horse Diseases/*diagnosis/radiography; Horses; Interviews; Lameness, Animal/*diagnosis/radiography; Physical Examination/*veterinary; Retrospective Studies; Telephone |
Abstract |
To quantify some components of prepurchase evaluations in horses, records from 134 evaluations performed during a 2-year period were reviewed and the outcome was determined via telephone follow-up interview. Sixty-two percent of the prepurchase evaluations had been performed at the clinic and 38% had been performed in the field by the ambulatory service. All evaluations included physical and lameness examinations, whereas radiography (49%), endoscopy (15%), nerve blocking (5%), transrectal palpation (3%), hematologic analysis (2%), electrocardiography (2%), drug testing for analgesic agents (2%), and ultrasonography of the flexor tendons (1%) were not always performed. Fifty-nine percent of horses evaluated at the clinic were radiographed, compared with 33% of horses evaluated in the field (P less than 0.05). Thirty-seven percent of horses evaluated were judged serviceable for their intended use. Thirty-five percent of horses evaluated at the clinic were assessed to be serviceable, compared with 41% of those evaluated in the field (P less than 0.05). Horses used for pleasure riding (48%) tended to be considered serviceable more often than horses used for more athletic endeavors (3-day eventing, 33%; hunter/jumper, 24%; show, 31%; dressage, 30%). The most common basis for finding a horse unserviceable was lameness (88%).(ABSTRACT TRUNCATED AT 250 WORDS) |
Address |
Veterinary Medical Teaching Hospital, University of California, Davis 95616 |
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English |
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ISSN |
0003-1488 |
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PMID:1429136 |
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no |
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Equine Behaviour @ team @ |
Serial |
3753 |
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Author |
McCrory, P.; Turner, M.; LeMasson, B.; Bodere, C.; Allemandou, A. |
Title |
An analysis of injuries resulting from professional horse racing in France during 1991-2001: a comparison with injuries resulting from professional horse racing in Great Britain during 1992-2001 |
Type |
Journal Article |
Year |
2006 |
Publication |
British Journal of Sports Medicine |
Abbreviated Journal |
Br J Sports Med |
Volume |
40 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
7 |
Pages |
614-618 |
Keywords |
Accidental Falls/statistics & numerical data; Accidents, Occupational/statistics & numerical data; Animals; Athletic Injuries/*epidemiology/etiology; Female; France/epidemiology; Great Britain/epidemiology; *Horses; Humans; Incidence; Ireland/epidemiology; Male; Prospective Studies |
Abstract |
BACKGROUND: It has been previously shown that professional jockeys suffer high rates of fatal and non-fatal injuries in the pursuit of their occupation. Little is known, however, about differences in injury rates between countries. AIM: To determine the rate of fatal and non-fatal injuries in flat and jump jockeys in France and to compare the injury rates with those in Great Britain and Ireland Method: Prospectively collected injury data on professional jockeys were used as the basis of the analysis. RESULTS: Limb fractures occur four times more often in both flat and jump racing in France than in Great Britain. Similarly dislocations are diagnosed 20 times more often in flat and three times more often in jump racing. This difference is surprising given that French jockeys have fewer falls per ride than their British counterparts in flat racing, although they do have more falls than the British in jump racing. Similarly concussion rates seem to be higher in French jockeys, although there may be a difference in the diagnostic methods used in the different countries. By contrast, soft tissue injuries account for a far smaller percentage of injuries than in Great Britain. CONCLUSION: There are striking differences in injury rates between countries which may be explained in part by a difference in track conditions-for example, harder tracks in France-or different styles of racing--for example, larger fields of horses per race in France. |
Address |
Centre for Health, Exercise and Sports Medicine and Brain Research Institute, University of Melbourne, Parkville, Victoria, Australia. paulmccr@bigpond.net.au |
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English |
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Edition |
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ISSN |
1473-0480 |
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Notes |
PMID:16687479 |
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no |
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Equine Behaviour @ team @ |
Serial |
3762 |
Permanent link to this record |