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| Author | Covalesky, M.E.; Russoniello, C.R.; Malinowski, K. | ||||
| Title | Effects of show-jumping performance stress on plasma cortisol and lactate concentrations and heart rate and behavior in horses | Type | Journal Article | ||
| Year | 1992 | Publication | Journal of Equine Veterinary Science | Abbreviated Journal | |
| Volume | 12 | Issue | 4 | Pages  |
244-251 |
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| Abstract | Summary Effects of show jumping competition on stress levels in horses was examined. Twenty-six homes were sampled in both show and farm environments from three levels of show experience schooling, (least experience, n=11); intermediate, (moderate experience, n=6); open, (most experience, n=9). Blood samples were taken at 6 time points; 3 at the horse show and 3 at the home farm (baseline at rest, pre-schooling and post-performance over a jump course). Stress responses were assessed through comparison of the behavioral response of the horses (determined by a subjective scoring system) to plasma cortisol (F) concentrations. Physical exertion was evaluated by heart rate (HR) and plasma lactate (L) concentrations. Schooling jumpers displayed higher baseline F concentrations than open jumpers (83g±9.2 vs 46.4±10.2 ng/ml, respectively; p<.05); but not when compared to intermediate jumpers (66.2 ± 13.7 ng/ml; p>.05) at the horse show. At the farm, there were no differences in F concentrations between experience levels at a time point (p<.05). Least experienced horses displayed higher F values at rest at the show compared to the home farm. At the show, open jumpers had higher L concentrations post-exercise compared to intermediate horses (40.3±3.4 vs 25.5±4.0 mg/dL, respectively; p<.05); but were not different compared to schooling jumpers (34.8±2.0 mg/dL; p>.05). There were no differences in heart rates or behavior score between experience levels at specific time points at either the show or farm (p>.05). Low positive correlations were found between HR and F (r=.24, p<.05); HR and L (r-.48, p<.05); and HR and behavior (r=.22, p<.05). Results suggest that conditioned jumpers that have previously been exposed to horse show environments do not appear stressed during acute show-jumping competition. | ||||
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| ISSN | 0737-0806 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5622 | ||
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| Author | Gibbs, P.G.; Cohen, N.D. | ||||
| Title | Early management of race-bred weanlings and yearlings on farms | Type | Journal Article | ||
| Year | 2001 | Publication | Journal of Equine Veterinary Science | Abbreviated Journal | J. Equine Vet. Sci. |
| Volume | 21 | Issue | 6 | Pages |
279-283 |
| Keywords | Equine, management, growth, nutrition, marketing | ||||
| Abstract | A total of 58 Thoroughbred and Quarter Horse farms that managed 1,987 weanlings and yearlings responded to a survey designed to better characterize early management of racing prospects. Average age at weaning was 5.5 months and over half of all farms kept almost three-fourths of all weanlings to be placed in pre-race training. Variation in feeding practices was evident and while well over half of all farms provided balanced nutrient supply to young horses, 20% to 40% likely fed unbalanced diets. An obvious preference existed for semi-confinement in young horses with plenty of free exercise. The majority of farms reported that young prospects were fed and managed for a moderate rate of growth. Forced exercise occurred to a much larger extent with yearlings than weanlings and 40% of farms described the footing as soft, but not deep. Response to the prevalence of developmental orthopedic diseases appeared somewhat guarded, and average injury rate was low on farms that attributed much of injury to horses playing too hard. Technological advancements such as photoperiod manipulation in broodmares were widely used, while valuable tools such as body condition scoring were utilized to a lesser extent. |
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5758 | ||
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| Author | Verrill, S.; McDonnell, S. | ||||
| Title | Equal Outcomes with and without Human-to-Horse Eye Contact When Catching Horses and Ponies in an Open Pasture | Type | Journal Article | ||
| Year | 2008 | Publication | Journal of Equine Veterinary Science | Abbreviated Journal | |
| Volume | 28 | Issue | 5 | Pages |
309-312 |
| Keywords | Horse handling; Horse management; Eye contact; Interspecies interactions; Equine behavior | ||||
| Abstract | Each of 104 horses and ponies was approached for catching at pasture by the same human handler in a standard manner, either maintaining human-to-animal eye contact (EC+; n = 51) or avoiding eye contact (EC-; n = 53). A subset of 74 of these subjects were reevaluated 3 weeks later under similar standard conditions except with the eye contact condition opposite to that used in the first round. Nonparametric statistical methods were used to evaluate between subjects (round 1, n = 104) and within subjects (rounds 1 and 2, n = 74) comparisons of successful or unsuccessful catching outcome with EC+ and EC-. Catching outcomes were similar with eye contact condition. Although this study represents a single handler at one study site, results suggest that human-to-horse eye contact may not be an important influence on catching pastured horses. Certainly, further work is needed to better understand the role of eye contact in horse handling. | ||||
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| ISSN | 0737-0806 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 4711 | ||
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| Author | Buechner-Maxwell, V.A.; Elvinger, F.; Thatcher, C.D.; Murray, M.J.; White, N.A.; Rooney, D.K. | ||||
| Title | Physiological Response of Normal Adult Horses to a Low-Residue Liquid Diet | Type | Journal Article | ||
| Year | 2003 | Publication | Journal of Equine Veterinary Science | Abbreviated Journal | |
| Volume | 23 | Issue | 7 | Pages |
310-317 |
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| Abstract | Abstract The anorexic or dysphagic adult horse often requires nutritional support. Providing nutrients by the enteral route is the safest and most economic choice, but the dietary options available for use in horses are somewhat limited. The objective of this study was to compare the physiologic response of normal horses with a low-residue liquid or normal diet over a 10-day feeding period. Two groups of 6 normal adult horses were maintained on 1 of 2 diets for a 10-day period. Diets were formulated to meet the caloric needs of a horse maintained in a stall. The control group was fed 70% timothy hay and 30% textured concentrate for the test period, and the experimental group received the low-residue liquid diet, similar to liquid nutritional formulas designed for human use. Clinical parameters, body weight, packed cell volume, total plasma solids, blood glucose, and serum electrolytes were recorded daily for each horse during the dietary trial period. On days 1, 5, and 10 of the study, a complete blood count, serum biochemical profile, and urinalysis were performed. Horses' serum total bilirubin concentration and pattern of weight loss differed between groups. All other physical parameters, blood chemistry, complete blood count, and urinalysis results remained within the normal reference interval for the horses regardless of diet, although some statistical differences were observed. Horses returned to pasture and free-choice grass diet without complications at the end of the dietary trial period. These results demonstrate that few differences of biologic significance were observed between horses being fed low-residue diet and horses receiving a normal diet of hay and grain over a 10-day period. (Equine Vet J 2003;23:310-317) | ||||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 4229 | ||
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| Author | Burden, F.; Thiemann, A. | ||||
| Title | Donkeys Are Different | Type | Journal Article | ||
| Year | 2015 | Publication | Journal of Equine Veterinary Science | Abbreviated Journal | Proceedings of the 2015 Equine Science Society Symposium |
| Volume | 35 | Issue | 5 | Pages |
376-382 |
| Keywords | Donkey; Ass; Equid; Mule | ||||
| Abstract | As a unique species of equine, the donkey has certain specific variations from the horse. This review highlights the origins of the donkey and how this impacts on its behavior, physiology, and propensity to disease. The donkey is less of a flight animal and has been used by humans for pack and draught work, in areas where their ability to survive poorer diets, and transboundary disease while masking overt signs of pain and distress has made them indispensable to human livelihoods. When living as a companion animal, however, the donkey easily accumulates adipose tissue, and this may create a metabolically compromised individual prone to diseases of excess such as laminitis and hyperlipemia. They show anatomic variations from the horse especially in the hoof, upper airway, and their conformation. Variations in physiology lead to differences in the metabolism and distribution of many drugs. With over 44 million donkeys worldwide, it is important that veterinarians have the ability to understand and treat this equid effectively. | ||||
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| ISSN | 0737-0806 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 6541 | ||
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| Author | McGreevy, P. | ||||
| Title | Equine behavior | Type | Journal Article | ||
| Year | 2004 | Publication | Journal of Equine Veterinary Science | Abbreviated Journal | |
| Volume | 24 | Issue | 9 | Pages |
397-398 |
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| Notes | Approved | no | |||
| Call Number | refbase @ user @ | Serial | 1983 | ||
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| Author | Miller, R.M. | ||||
| Title | How the dominance hierarchy is determined: The body language of the horse | Type | Journal Article | ||
| Year | 1995 | Publication | Journal of Equine Veterinary Science | Abbreviated Journal | |
| Volume | 15 | Issue | 12 | Pages |
514-515 |
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 4306 | ||
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| Author | Hanggi, E.B. | ||||
| Title | Interocular transfer of learning In horses (Equus caballus) | Type | Journal Article | ||
| Year | 1999 | Publication | Journal of Equine Veterinary Science | Abbreviated Journal | J Equine Vet Sci |
| Volume | 19 | Issue | 8 | Pages |
518-524 |
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| Call Number | Equine Behaviour @ team @ | Serial | 3564 | ||
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| Author | Merl, S.; Scherzer, S.; Palme, R.; Möstl, E. | ||||
| Title | Pain causes increased concentrations of glucocorticoid metabolites in horse feces | Type | Journal Article | ||
| Year | 2000 | Publication | Journal of Equine Veterinary Science | Abbreviated Journal | J Equine Vet Sci |
| Volume | 20 | Issue | 9 | Pages |
586-590 |
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| Abstract | The concentration of 11,17-dioxoandrostanes (11,17-DOA), a group of cortisol metabolites, was measured using enzyme immunoassay in fecal samples of horses experiencing painful episodes. One group of horses consisted of 10 stallions castrated (samples were collected daily for 10 days); the other group was made up of 29 horses which were brought to an animal hospital because of signs of colic (samples were collected twice daily for six days). Before castration, median concentrations of 10.5 nmol/kg feces were measured. On days 1 and 2 after castration, median 11,17-DOA values increased up to 26.2 and 50.0 nmol/kg feces, respectively, and decreased thereafter to levels lower than at the beginning of the sampling period. High variations were measured between individual cases of colic. In animals with colic, all horses excreted more than 33 nmol 11,17-DOA/kg feces for various periods. The highest concentration measured was 885 nmol/kg feces. One animal out of the 29 colic horses did not show any clinical signs of pain upon arrival in the hospital. The 11,17-DOA values were below 17 nmol/kg feces in all those samples. From this data we conclude, that the concentration of 11,17-DOA in feces is a parameter for painful situations that have occurred one or two days earlier. | ||||
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| ISSN | 0737-0806 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 6047 | ||
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| Author | Piro, M.; Benjouad, A.; Karom, A.; Nabich, A.; Benbihi, N.; El Allali, K.; Machmoum, M.; Ouragh, L. | ||||
| Title | Genetic Structure of Severe Combined Immunodeficiency Carrier Horses in Morocco Inferred by Microsatellite Data | Type | Journal Article | ||
| Year | 2011 | Publication | Journal of Equine Veterinary Science | Abbreviated Journal | J. Equine Vet. Sci. |
| Volume | 31 | Issue | 11 | Pages |
618-624 |
| Keywords | Scid; Arab horses; Arab-Barb horses; Microsatellite; Dna; Genetic structure | ||||
| Abstract | A total of 17 microsatellite deoxyribonucleic acid loci used routinely for horse parentage control were used to evaluate genetic diversity among normal Arabian horses and severe combined immunodeficiency (SCID) carrier Arabian horses (ArS) and normal Arab-Barb horses and SCID carrier Arab-Barb horses (ArbeS). On the basis of the genotype of 186 horses, mean allelic diversity was estimated as 6.82, 5.53, and 6.7059 in normal Arabian horses, ArS, and for both groups of Arab-Barb horses, respectively. Five specific alleles were observed in ArS and ArbeS, with one common with ArS at HMS6, whereas five alleles common between ArS and ArbeS had a high frequency. Expected and observed heterozygosity showed great heterogeneity in the population studied and were similar or higher when compared with other studies on Arabian horses. Coefficient of gene differentiation Gst of Nei associated with Nei's genetic distance and multivariate correspondence analysis indicated a possible differentiation between the studied populations when analyzed separately according to breed. Probability of assignment of a horse to a specific group was assessed using a full and partial Bayesian approach. In all, 80.6% of Arab horses and 78.2% of Arab-Barb horses were assigned properly with a partial Bayesian test, which provided better results than the full one. These findings will be useful for identification of SCID carrier horses by using the microsatellite deoxyribonucleic acid loci used routinely for horse parentage control in our laboratory. | ||||
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| ISSN | 0737-0806 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 6657 | ||
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