Faglitteratur


Articular calcified cartilage canals in the third metacarpal bone of 2-year-old thoroughbred racehorses

We describe morphological aspects of the articular calcified cartilage mineralizing front 'tidemark' in the distal joint surface of the third metacarpal bone from 14 horses. Compositional backscattered electron scanning electron microscopy and confocal scanning light microscopy were conducted on polymethylmethacrylate (PMMA)-embedded medio-lateral slices. After maceration, scanning electron microscopy (SEM) was used to study the calcified cartilage surface in the 'wedges' intervening between the slices. An anatomically reproducible clustering of canals in the calcified cartilage was found at one site on the sagittal ridge in all the horses. The site is one that is relatively less loaded during joint function. These canals through calcified cartilage result from osteoclastic resorption (cutting cones) penetrating from bone through to the non-mineralized hyaline articular cartilage. Their presence may indicate a pathway for connection between bone and cartilage extracellular fluid. In one horse, repair of such canals by plugging with new calcified cartilage was demonstrated. Differences in the degree of mineralization of regions of cartilage were seen in the combined compositional-cum-topographical backscattered SEM images of the macerated 'tidemark' front. More-or-less circular patches of lower mineralization density were frequently centred on (and may possibly originate from) canals. These microanatomical features should be searched for in other joints, at other ages and in other species to discover their frequency and significance.

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The Literature of Endurance Riding

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Monitoring fitness of Horses by Heart Rate

David W. Freeman Extension Equine Specialist; Don R. Topliff, Associate Professor, Animal Science; Michael A. Collier, Professor of Surgery, Veterinary Medicine, Oklahoma Cooperative Extension Service

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Method of investigation of the accuracy of four digitally-displaying heart rate meters suitable for use in the exercising horse

Evans D.L., Rose R.J.; Department of Veterinary Clinical Studies, University of Sydney, New South Wales, Australia Equine vet J 18(2): 129-132, 1986

The accuracy of three different heart rate meters used for studies in the exercising horse

Van Oldruitenborgh-Oosterbaan M., Van den Hoven R., Breukink H.J. In Heart Rate and Blood Lactate in Exercising Horses, 1988 Pp 665-678

Measurement of heart rate and blood lactate during trotting races

Auvinet B., Demonceau T.; Départment de Médecine du Sport, Centre Hospitalier de Laval, Laval Cedex, France The Equine Athlete 5(6): 9-13, 1992

Effect of a booster vaccination against influenca and equine herpes virus on cardiorespiratory adjustements to strenuous exercise and training in thoroughbred horses

Art T., Lekeux P.; Equine Sports Medicine Unit, Faculty of Veterinary Medicine, University of Liege, Belgium Zentralbl Veterinarmed A 40(7): 481-491, 1993

Demographics, management, and welfare of nonracing horses in Prince Edward Island

Julie L. Christie, Caroline J. Hewson, Christopher B. Riley, Mary A. McNiven, Ian R. Dohoo, and Luis A. Bate

Sir James Dunn Animal Welfare Centre (Hewson, Christie); Department of Biomedical Sciences (Christie, Hewson, Bate); and Department of Health Management (Riley, McNiven, Dohoo), Atlantic Veterinary College, University of Prince Edward Island, 550 University Avenue, Charlottetown, Prince Edward Island C1A 4P3.

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Training-induced modifications in cardiorespiratory and ventilatory measurements in thoroughbred horses

Art T., Lekeux P.; Equine Sports Medicine Unit, Faculty of Veterinary Medicine, University of Liege, Belgium Equine vet J 25(6): 532-536, 1993

Cardio-respiratory, haematological and biochemical parameter adjustments to exercise: Effect of a probiotic in horses during training

Art T., Votion D., McEntee K., Amory H., Linden A., Close R., Lekeux P.; Centre de Medecine Sportive Equine, Faculte de Medecine Veterinaire, Universite de Liege, Belgium Vet Res 25(4): 361-370, 1994

Validation of a heart rate monitor for measuring a stress response in dairy cows

Hopster H., Blokhuis H.J.; Agricultural Research Department, Institute for Animal Science and Health, Research Branch Zeist, The Netherlands Can J Animal Sci 74: 465-474, 1994

Blood parameter and heart rate response to training in andalusian horses

Aguera E.I., Rubio M.D., Vivo R., Santisteban R., Munoz A., Castejon F.; Fac Vet Cordoba, Dept Anim Biol, Secc Fisiol, Cordoba, Spain Revista Espanola de Fisiologia 51(2): 55-64, 1995

Reproducibility of a stardardised exercise test for standardbred trotters under field conditions

Dubreucq C., Chatard J.C., Courouce A., Auvinet B.; Service de Médecine, Ecole Nationale Vétérinaire de Nantes, France Equine vet J, Suppl, 18: 108-112, 1995

Effects of exercise on erythrocytes in normal and splenectomised thoroughbred horses

Hanzawa K., Kubo K., Kai M., Hiraga A., Watanabe S.; Department of Zootechnical Science, Tokyo University of Acriculture, Japan Equine vet J 18: 439-442, 1995

Exercise performance indices in normal and anabolic steroid treated trotters

Hyyppä S., Räsänen L.A., Persson S.G.B., Pösö A.R.; Equine Research Station, Ypäjä, Finland Equine vet J 18: 443-447, 1995

Physiological, metabolic and biochemical responses of horses competing in the speed and endurance phase of a cci**** 3-day-event

Marlin D.J., Harris P.A., Schroter R.C., Harris R.C., Roberts C.A., Scott C.M., Orme C.E., Dunnett M., Dyson S.J., Barrelet F., Williams B., Marr C.M., Casas I.; Physiology and Clinical Units, Equine Centre, Animal Health Trust, Newmarket, Suffolk, UK Equine vet J 20: 37-46, 1995

Effects of weight and riding on workload and locomotion during treadmill exercise

Sloet Van Oldruitenborgh-Oosterbaan M.M., Barneveld A., Schamhardt H.C.; Department of Large Animal Medicine and Nutrition, Faculty of Veterinary Medicine, Utrecht, The Netherlands Equine vet J 18: 413-417, 1995

Heart rate and lactate concentration during two different cross country events

White S.L., Williamson L.H., Maykuth P., Cole S., Andrews F.; Department of Large Animal Medicine, College of Veterinary Medicine, University of Georgia, Athens, USA Equine vet J 18: 463-467, 1995

Significance of high heart rate recorded during standardized field exercise tests in the detection of orthopaedic diseases in standardbred trotters

Couroucé A., Geffroy O., Chatard J.-C., Auvinet B.; Départment de Médecine du Sport, Centre Hospitalier de Laval, Laval Cedex, France Pferdeheilkunde 12: 588-593, 1996

Restoration of water and electrolyte balance in horses after repeated exercise in hot and humid condiitons

Hyyppä S., Saastamoinen M., Pösö A.R.; Agricultural Research Centre, Equine Research, Ypäjä, Finland Equine vet J 22: 108-112, 1996

Heart rate and food intake in norwegian reindeer

Mesteig K., Tyler N.J.C., Blix A.S.; Department of Arctic Biology and Institute of Medical Biology, University of Tromso, Norway Abstract in The 9th Nordic Conference on Reindeer Research, Uppsala, Sweden, 1996

Heart rate recording during trotting races: valuable data for trainers

Couroucé A., Auvinet B., Pégase-Mayenne; Départment de Médecine du Sport, Centre Hospitalier de Laval, Laval Cedex, France The Equine Athlete, 1997

Post exercise changes in compartmental body temperaturu accompanying intermittent cold water cooling in the hyperthermic horse

Marlin D.J., Scott C.M., Roberts C.A., Casas I., Holah G., Schroter R.C. Equine vet J 30(1):28-34, 1998

Field exercise testing for assessing fitness in french standard bred trotters

Couroucé A. Vet J 157:112-122, 1999

Investigation of the accuracy of a new heart rate meter for use in exercising horses

Holopherne D.L.M., Hodgson D.R., Rose R.J. Abstract in WEVA World 6th Congress, 30 September-3 October 1999, Paris, France