The Potential Role of Training Sessions on the Temporal and Spatial Physiological Patterns in Young Friesian Horses |
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| Affiliation: | 1. School of Agriculture and Environment, Massey University, Palmerston North, New Zealand;2. School of Veterinary Science, Massey University, Palmerston North, New Zealand;3. College of Sciences, Massey University, Palmerston North, New Zealand;1. Institute of Animal Breeding and Husbandry, Christian-Albrechts-University, Hermann-Rodewald-Straße 6, D-24118 Kiel, Germany;2. Verband der Züchter des Holsteiner Pferdes e.V., Abteilung Zucht, D-24106 Kiel, Germany;1. Department of Veterinary Clinical and Animal Science, Faculty of Health and Medical Sciences, University of Copenhagen, Dyrlaegevej 100, 1870 Frederiksberg C, Denmark;2. Department of Large Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Agrovej 8, 2630 Taastrup, Denmark;3. Laboratory of Experimental Cardiology, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Koebenhavn N, Denmark;4. Department of Cardiology, Herlev and Gentofte University Hospitals, Niels Andersens Vej, 2900 Hellerup, Denmark;1. Department of Clinical Sciences, Swedish University of Agricultural Sciences, Box 7054, SE-750 07 Uppsala, Sweden;2. Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences, Box 7024, SE-750 07 Uppsala, Sweden |
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| Abstract: | This study compares the circulating adrenocorticotrophin hormone (ACTH), cortisol, lactate, glucose, heart rate, respiratory rate, rectal temperature, and blood count values in initially 2-year-old horses subjected to dressage training schedule during three consecutive days per 2 weeks. Sixteen healthy Friesian horses were used and were considered dressage group. Six healthy young horses not involved in training programs were used as control group. Blood sampling were collected from the jugular vein in baseline condition (dressage group and control group) and after exercise, within 5 minutes of the end of the training session (dressage group). Compared to baseline values, results showed higher ACTH concentrations after the first day of the first training week (P < .005) and after the third day of the second week (P < .005); higher lactate concentrations after the second and the third day of the second week (P < .01); lower glucose concentrations after the third day of the first week (P < .01); higher HR, RR, and RT values and lower PLT count after different time points during both training weeks. One-way ANOVA showed significant training effect for ACTH (F = 7.605; P < .0001) and glucose (F = 3.505; P < .001) concentrations over time points. Two-way ANOVA showed a significant effect of dressage training sessions between the first and the second week for ACTH (F = 6.508; P < .001) and cortisol (F = 5.559; P < .0001) concentrations. From obtained data, it seems that the use of ACTH and cortisol changes for the assessment of effects of training in initially 2-year-old horses could be an ideal measure of quantitative and qualitative stress responses. The quantification at the same time of functional responses to stressful stimuli may offer a more objective measurement of dressage training effects. |
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| Keywords: | ACTH Cortisol Lactate Training Young horses |
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