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Author Shalaby, A.M. openurl 
  Title Host-preference observations on Anopheles culicifacies (Diptera: Culicidae) in Gujarat State, India Type Journal Article
  Year 1969 Publication Annals of the Entomological Society of America Abbreviated Journal Ann Entomol Soc Am  
  Volume 62 Issue (down) 6 Pages 1270-1273  
  Keywords Animals; *Anopheles; Cattle; *Ddt; Dogs; Ecology; Female; Goats; Horses; Humans; India; *Insect Vectors; *Insecticide Resistance; Precipitin Tests; Sheep  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0013-8746 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:5374165 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2739  
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Author Rubin, L.; Oppegard, C.; Hindz, H.F. url  doi
openurl 
  Title The effect of varying the temporal distribution of conditioning trials on equine learning behavior Type Journal Article
  Year 1980 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.  
  Volume 50 Issue (down) 6 Pages 1184-1187  
  Keywords Animals; Conditioning (Psychology); *Horses; *Learning  
  Abstract Two experiments were conducted to study the effect of varying the temporal distrbution of conditioning sessions on equine learning behavior. In the first experiment, 15 ponies were trained to clear a small hurdle in response to a buzzer in order to avoid a mild electric shock. Three treatments were used. One group received 10 learning trials daily, seven times a week; one group was trained in the same fashion two times a week and one group was trained once a week. The animals conditioned only once a week achieved a high level of performance in significantly fewer sessions than the ones conditioned seven times a week, although elapsed time from start of training to completion was two to three times greater for the former group. The twice-a-week group learned at an intermediate rate. In the second experiment, the ponies were rearranged into three new groups. They were taught to move backward a specific distance in response to a visual cue in order to avoid an electric shock. Again, one group was trained seven times a week, one group was trained two times and one group was trained once a week. As in the first experiment, the animals trained once a week achieved the learning criteria in significantly fewer sessions than those trained seven times a week, but, as in trial 1, elapsed time from start to finish was greater for them. The two times-a-week group learned at a rate in-between the rates of the other two groups.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0021-8812 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:7400060 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3558  
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Author Parkin, T.D.H.; Clegg, P.D.; French, N.P.; Proudman, C.J.; Riggs, C.M.; Singer, E.R.; Webbon, P.M.; Morgan, K.L. openurl 
  Title Horse-level risk factors for fatal distal limb fracture in racing Thoroughbreds in the UK Type Journal Article
  Year 2004 Publication Equine Veterinary Journal Abbreviated Journal Equine Vet J  
  Volume 36 Issue (down) 6 Pages 513-519  
  Keywords Animals; Athletic Injuries/epidemiology/mortality/*veterinary; Case-Control Studies; Female; Fractures, Bone/epidemiology/mortality/*veterinary; Great Britain/epidemiology; Horses/*injuries; Logistic Models; Male; Physical Conditioning, Animal/*adverse effects/mortality; Questionnaires; Radius Fractures/epidemiology/mortality/veterinary; Risk Factors; Survival Analysis; Tibial Fractures/epidemiology/mortality/veterinary  
  Abstract REASONS FOR PERFORMING STUDY: Fractures below the level of the radius or tibia (distal limb fractures) are the most common cause of equine fatality on UK racecourses; however, little is known about their epidemiology or aetiology. Identification of risk factors could enable intervention strategies to be designed to reduce the number of fatalities. OBJECTIVES: To identify horse-level risk factors for fatal distal limb fracture in Thoroughbreds on UK racecourses. METHODS: A case-control study design was used. Fractures in case horses were confirmed by post mortem examination and 3 matched uninjured controls were selected from the race in which the case horse was running. One hundred and nine cases were included and information was collected about previous racing history, horse characteristics and training schedules. Conditional logistic regression was used to identify the relationship between a number of independent variables and the likelihood of fracture. RESULTS: Horses doing no gallop work during training and those in their first year of racing were at significantly increased risk of fracture on the racecourse. Case horses were also more likely to have trained on a sand gallop, i.e. a gallop described by trainers as being primarily composed of sand. CONCLUSIONS: Modifications to training schedules, specifically within the first year of racing, may have a large impact on the risk of fatal distal limb fracture on the racecourse. Horses should do some gallop work in training and our results suggest that the minimum distance galloped should be between 805-2012 m (4-10 furlongs)/week. POTENTIAL RELEVANCE: The information from this study can be used to alter training schedules in an attempt to reduce the incidence of fatal distal limb fracture in Thoroughbred racehorses. Training should include some gallop work, and further studies, recording the exact level of work, will help to identify an optimum range of training speeds and distances which will reduce the liklihood of catastrophic fracture on the racecourse.  
  Address Department of Veterinary Clinical Science, University of Liverpool Veterinary Teaching Hospital, Leahurst, Neston, Wirral CH64 7TE, UK  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0425-1644 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:15460076 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3660  
Permanent link to this record
 

 
Author Johnston, C.; Holm, K.R.; Erichsen, C.; Eksell, P.; Drevemo, S. openurl 
  Title Kinematic evaluation of the back in fully functioning riding horses Type Journal Article
  Year 2004 Publication Equine Veterinary Journal Abbreviated Journal Equine Vet J  
  Volume 36 Issue (down) 6 Pages 495-498  
  Keywords Age Factors; Animals; Back/*physiology; Back Pain/diagnosis/veterinary; Biomechanics; Exercise Test/*veterinary; Female; Gait/*physiology; Horse Diseases/diagnosis; Horses/*physiology; Male; Movement/physiology; Sex Factors  
  Abstract REASONS FOR PERFORMING STUDY: Clinical history and examination are important features in diagnosis of equine back dysfunction. However, interpretation is subjective and therefore may vary substantially. OBJECTIVES: To establish a clinical tool to objectively evaluate the function of the equine back, in the form of a database on the kinematics of the back at the walk and trot in fully functioning riding horses. METHODS: Thirty-three fully functioning riding horses walked and trotted on a treadmill. Morphometrics and kinematics were tested for correlations to age, height, weight and stride length, and differences between gender (geldings and mares) and use (dressage and showjumping). RESULTS: A database for range of movement and symmetry of movement for extension and flexion, lateral bending, lateral excursion and axial rotation was presented. Symmetry values were very high for all variables. Significant differences were observed in use and gender. Age was negatively correlated to extension and flexion of the thoracolumbar junction. CONCLUSIONS: Interrelationships between use, gender and age to conformation and movement were established. POTENTIAL RELEVANCE: The database provides a basis for objective reference for diagnosis, therapy and rehabilitation of clinical cases of back dysfunction.  
  Address Departments of Anatomy and Histology, 75007 Uppsala, Sweden  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0425-1644 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:15460073 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3716  
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Author Landman, M.A.A.M.; de Blaauw, J.A.; van Weeren, P.R.; Hofland, L.J. openurl 
  Title Field study of the prevalence of lameness in horses with back problems Type Journal Article
  Year 2004 Publication The Veterinary Record Abbreviated Journal Vet. Rec.  
  Volume 155 Issue (down) 6 Pages 165-168  
  Keywords Animals; Back Pain/epidemiology/*veterinary; Case-Control Studies; Horse Diseases/*epidemiology/etiology; Horses; Lameness, Animal/epidemiology; Netherlands/epidemiology; Osteoarthritis/epidemiology/*veterinary; Prevalence; Records/veterinary; Retrospective Studies  
  Abstract A population of 805 horses (70 per cent dressage, 20 per cent show jumpers and 10 per cent trotters) with orthopaedic problems was examined for signs of lameness and back problems, irrespective of their original complaints. In the horses with a back problem the prevalence of lameness was 74 per cent, and back problems were diagnosed in 32 per cent of the lame horses. These percentages were significantly higher than those recorded in a control population of 399 horses, of which 20 per cent were lame and 12 per cent had back problems. In the group of horses with orthopaedic problems there was a strong association between lameness and back problems and, in particular, there was a high prevalence of lameness among the horses with back problems.  
  Address Bodegraven Equine Clinic, Zuidzijde 63, NL-2411 RT Bodegraven, The Netherlands  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0042-4900 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:15357376 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3717  
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Author Morales, J.L.; Manchado, M.; Vivo, J.; Galisteo, A.M.; Aguera, E.; Miro, F. openurl 
  Title Angular kinematic patterns of limbs in elite and riding horses at trot Type Journal Article
  Year 1998 Publication Equine Veterinary Journal Abbreviated Journal Equine Vet J  
  Volume 30 Issue (down) 6 Pages 528-533  
  Keywords Animals; Biomechanics; Breeding; Extremities/*physiology; Gait/*physiology; Horses/*physiology; Image Processing, Computer-Assisted; Joints/*physiology; Male; Video Recording  
  Abstract Normal speed videography was used to determine the angular parameters of 28 Spanish Thoroughbreds at trot. Horses were divided into 3 groups: Group UT, comprising 9 animals (provided by the VII National Stud, Cordoba, Spain) which had undergone no specific training programme and which were hand led at the trot; Group T, formed by 19 horses considered to be highly bred and trained, and which were also hand led; and Group RT, comprising the same horses as the latter group but this time trotted by a rider. Each animal was filmed 6 times from the right-hand side, using a Hi8 (25 Hz) video camera. Angular parameters for fore- and hindlimb joints were measured in each stride from computer-grabbed frames and entered into a spreadsheet for calculation; parameters included maximum and minimum angles, range of motion, and angles at landing, lift off and maximum hoof height; the times at which maximum angle, minimum angle, lift off and maximum hoof height occurred were calculated as percentages of total stride duration. Stride velocity (mean [s.d.]) was 4.01 (0.62), 3.60 (0.34) and 3.07 (0.36) m/s for Groups UT, T and RT, respectively. Data were then compared between Groups UT-T and Groups T-RT. Compared with Group UT, horses from Group T featured a shorter stance percentage (P<0.001) in both fore- and hindlimbs. The range of motion in forelimbs was smaller (P<0.05), due to lower retraction (P<0.001); moreover, maximum retraction appeared earlier (P<0.05). Greater scapular inclination was in evidence (P<0.05) and the shoulder joint extended further (P<0.05). Fore- and hind fetlock joints revealed a relatively shorter hyperextension period during the stance phase (P<0.01). Compared with Group T, horses from Group RT had a longer stance percentage, with belated maximum retraction of the fore- and hindlimbs. The range of movement in scapular inclination was greater (P<0.05), due to a smaller minimum angle (P<0.01), and the shoulder joint flexed more (P<0.05). The elbow joint extended more and for longer during the stance phase. Initial extension of the hip joint (P<0.05) and tarsus (P<0.001) lasted longer. The carpal and fore and hind fetlock joints recorded relatively longer hyperextension times, in addition to greater hyperextension during the stance phase. The results from the present study suggest that rider-effect must be taken in consideration when well gaited horses are selected for dressage purposes.  
  Address Department of Compared Anatomy and Pathology, University of Cordoba, Veterinary Faculty, Spain  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0425-1644 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:9844972 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3734  
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Author Dabareiner, R.M.; Sullins, K.E.; White, N.A. 2nd openurl 
  Title Progression of femoropatellar osteochondrosis in nine young horses. Clinical, radiographic and arthroscopic findings Type Journal Article
  Year 1993 Publication Veterinary Surgery : VS : the Official Journal of the American College of Veterinary Surgeons Abbreviated Journal Vet Surg  
  Volume 22 Issue (down) 6 Pages 515-523  
  Keywords Animals; Arthroscopy/veterinary; Debridement/veterinary; Exudates and Transudates; Female; Femur; Follow-Up Studies; Horse Diseases/*diagnosis/radiography/surgery; Horses; Lameness, Animal/*etiology; Male; Osteochondritis/diagnosis/radiography/surgery/*veterinary; Patella; Stifle; Treatment Outcome  
  Abstract The clinical and radiographic progression, and arthroscopic findings for nine young horses (< 1 year of age) with femoropatellar osteochondrosis (OCD) are presented. Horses had a 2 to 12 week history of bilateral (8 horses) or unilateral (1 horse) hindlimb lameness. The most consistent clinical signs included femoropatellar joint distention and bilateral hindlimb lameness. At the onset of clinical signs, radiographic lesions were not present (4 horses) or subtle (5 horses), but were easily identified on radiographs taken 4 to 24 weeks later. Arthroscopic surgery was delayed until radiographic changes became obvious. Surgical findings in 20 femoropatellar joints were most commonly osteochondral “flaps” located on the proximal lateral trochlear ridge of the femur and were larger than had been indicated by the radiographs. Eight horses were being used for their intended purpose, which was racing (3 horses were racing and 3 were in race training), dressage (1 horse) or pleasure riding (1 horse). One horse required a second surgery when similar lesions developed on the opposite stifle, and was euthanatized 2 months later because of persistent lameness. One clinical signs are observed, osteochondrosis lesions of the distal femur can progress in foals younger than 9 months of age and the full extent of the radiographic lesion may take several weeks to develop.  
  Address Marion duPont Scott Equine Medical Center, Virginia-Maryland Regional College of Veterinary Medicine, Leesburg, Virginia  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0161-3499 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8116209 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3748  
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Author Birch, H.L.; Bailey, A.J.; Goodship, A.E. openurl 
  Title Macroscopic 'degeneration' of equine superficial digital flexor tendon is accompanied by a change in extracellular matrix composition Type Journal Article
  Year 1998 Publication Equine Veterinary Journal Abbreviated Journal Equine Vet J  
  Volume 30 Issue (down) 6 Pages 534-539  
  Keywords Animals; Collagen/analysis; DNA/analysis; Extracellular Matrix/*chemistry; Glycosaminoglycans/analysis; Horses/injuries/*physiology; Immunohistochemistry; Rupture/veterinary; Tendon Injuries/metabolism/pathology/veterinary; Tendons/chemistry/*pathology; Water/analysis  
  Abstract Injuries to the superficial digital flexor tendon are common in horses required to gallop and jump at speed. Partial rupture of this tendon usually occurs in the central core of the midmetacarpal region and may be preceded by localised degenerative changes. Post mortem examination of apparently normal equine flexor tendons has revealed an abnormal macroscopic appearance in the central core, characterised by a reddish discolouration. We have previously shown that there is also physical damage to the collagen fibres. In the present study we tested the hypothesis that the abnormal appearance is accompanied by changes in the composition of the extracellular matrix of the tendon. Biochemical analysis of the extracellular matrix demonstrated an increase in total sulphated glycosaminoglycan content, increase in the proportion of type III collagen and decrease in collagen linked fluorescence in the central core of 'degenerated' tendons relative to tissue from the peripheral region of the same tendon. Dry matter content and total collagen content were not significantly different between tendon zones or normal and 'degenerated' tendons. These changes suggest a change in cell metabolism and matrix turnover in the central core of the tendon and are likely to contribute to a decrease in mechanical properties in this part of the tendon, predisposing to the characteristic partial rupture of the tendon.  
  Address Veterinary Basic Sciences, Royal Veterinary College, North Mymms, Hatfield, UK  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0425-1644 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:9844973 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3794  
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Author Steinhoff, H.J. openurl 
  Title A continuous wave laser T-jump apparatus and its application to chemical reactions in hemoglobin single crystals Type Journal Article
  Year 1988 Publication Journal of Biochemical and Biophysical Methods Abbreviated Journal J Biochem Biophys Methods  
  Volume 15 Issue (down) 6 Pages 319-330  
  Keywords Animals; Chemistry; Crystallization; *Heat; *Hemoglobins; Horses/blood; *Lasers; Methemoglobin; Solutions; Thermodynamics; Thiocyanates  
  Abstract A laser temperature jump apparatus is constructed where the T-jump is achieved by means of the direct absorption of continuous laser radiation of low intensity by a solid sample. The final temperature in the irradiated volume element is reached when the absorbed radiation power equals the dissipation of heat by heat conduction. The time range from the beginning of irradiation to the stationary state depends on the geometry of the irradiated volume element and is less than 10 ms. The heating laser beam is simultaneously used to detect the relaxation to the new chemical equilibrium in the sample. Relaxation processes with relaxation rates between 10(2) s-1 and less than 10(-3) s-1 on samples with volumes less than 10(-3) mm3 may be investigated using this T-jump method. One application of this method is the determination of reaction rates of ligand reactions in hemoglobin single crystals. Rate constants obtained for the reaction of thiocyanate with crystallized horse methemoglobin are presented.  
  Address Institut fur Biophysik, Ruhr-Universitat Bochum, F.R.G  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0165-022X ISBN Medium  
  Area Expedition Conference  
  Notes PMID:3379245 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3804  
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Author Saigo, S. openurl 
  Title A transient spin-state change during alkaline isomerization of ferricytochrome c Type Journal Article
  Year 1981 Publication Journal of Biochemistry Abbreviated Journal J Biochem (Tokyo)  
  Volume 89 Issue (down) 6 Pages 1977-1980  
  Keywords Animals; *Cytochrome c Group; Horses; Hydrogen-Ion Concentration; Isomerism; Kinetics; Myocardium/enzymology; Oxidation-Reduction; Spectrophotometry  
  Abstract Kinetic difference spectra during the alkaline isomerization of ferricytochrome c were obtained by the pH-jump method in the range of 540 to 655 nm. The spectrum of the transient intermediate, which appears during the course of the isomerization, was reproduced from the spectra. The intermediate showed an intense absorption band at 600 nm, indicating that it is a high spin or mixed spin species. This is in contrast to the stable neutral and alkaline forms which are low spin species. The transient spin-state change during the isomerization was also observed upon rapid oxidation of ferrocytochrome c at alkaline pH.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0021-924X ISBN Medium  
  Area Expedition Conference  
  Notes PMID:6270075 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3808  
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