Records |
Author |
Douglas Wilson, A. |
Title |
The effects of diet on blood glucose, insulin, gastrin and the serum tryptophan: Large neutral amino acid ratio in foals |
Type |
Journal Article |
Year |
2006 |
Publication |
The Veterinary Journal |
Abbreviated Journal |
Vet J |
Volume |
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Keywords |
Diet; Horse; Insulin; Gastrin; Tryptophan |
Abstract |
High carbohydrate diets can affect the health and behaviour of foals, but the mechanisms are not always fully understood. The objective of this study was to compare the effects of feeding a starch and sugar (SS), or a fat (oil) and fibre (FF) rich diet to two groups of eight foals. Diets were fed from 4 to 42 weeks of age, alongside ad libitum forage. Faecal pH levels did not differ significantly between groups and endoscopic examination showed that the gastric mucosa was healthy in both groups at 25 and 42 weeks of age. At 40 weeks of age, SS foals had significantly higher total blood glucose and lower total blood gastrin than FF foals during the 6h period following ingestion of their respective diets, but insulin levels did not differ significantly. The ratio between serum tryptophan and other large neutral amino acids showed a trend towards an interaction between diet and sampling time. The results provide preliminary information about the effects of diet on the physiology of young horses. |
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School of Veterinary Science, University of Bristol, Langford House, Bristol BS40 5DU, UK |
Corporate Author |
Amanda J. Badnell-Watersb, Rachel Biceb, Ailison Kellandb, Pat A. Harrisc and Christine J. Nicol |
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English |
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1090-0233 |
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PMID:16945560 |
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no |
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refbase @ user @ |
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63 |
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Author |
Waldern, N.M.; Wiestner, T.; Ramseier, L.C.; Amport, C.; Weishaupt, M.A. |
Title |
Effects of shoeing on limb movement and ground reaction forces in Icelandic horses at walk, tölt and trot |
Type |
Journal Article |
Year |
2013 |
Publication |
The Veterinary Journal |
Abbreviated Journal |
Vet. J. |
Volume |
198, Supplement 1 |
Issue |
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Pages |
e103-e108 |
Keywords |
Icelandic horse; Gait analysis; Ground reaction force; Kinematics; Shoeing; Tölt |
Abstract |
Abstract Tölt is a symmetric four-beat gait with a speed range extending into that of trot and canter. Specific shoeing methods, such as unnaturally high and long hooves, are used to enforce individual gait predisposition. The aim of this study was to assess the consequences of this shoeing style on loading and movement of the limbs at walk, tölt and trot, and at different velocities. Simultaneous kinetic and kinematic gait analysis was carried out at walk (1.4 m/s) and at two tölting and trotting speeds (3.3 m/s and 3.9 m/s) on an instrumented treadmill. Thirteen sound Icelandic horses were first measured with high, long front hooves (SH) and, 1 week later, after trimming the hooves according to standard shoeing principles (SN). Comparing SH with SN, front hooves had 21 ± 5 mm longer dorsal hoof walls, and the shoeing material per hoof was 273 ± 50 g heavier. In all three gaits, gait quality, as it is currently judged, was improved with SH due to a lower stride rate, a longer stride length and a higher, but not wider, forelimb protraction arc, which were also positively associated with speed. Forelimb–hind limb balance remained unchanged, but limb impulses were higher. Apart from an increase of ⩽2.2% in the forelimbs at the faster speed of both tölt and trot, SH had little influence on vertical peak forces. |
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1090-0233 |
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Equine Behaviour @ team @ |
Serial |
5912 |
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Author |
Pinchbeck, G.L.; Clegg, P.D.; Proudman, C.J.; Stirk, A.; Morgan, K.L.; French, N.P. |
Title |
Horse injuries and racing practices in National Hunt racehorses in the UK: the results of a prospective cohort study |
Type |
Journal Article |
Year |
2004 |
Publication |
The Veterinary Journal |
Abbreviated Journal |
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Volume |
167 |
Issue |
1 |
Pages |
45-52 |
Keywords |
Racehorse; Horse; Injury; Cohort; National Hunt |
Abstract |
A prospective cohort study was conducted on horses starting in hurdle and steeplechase races on six UK racecourses in 2000 and 2001. Trainers or carers were questioned on the horses' pre-race routine and observational data were collected in the stables and parade ring. Some practices were common to many starters, such as withholding food and water before racing whereas other practices, such as schooling frequency, were more variable. There was a total of 2879 starts and a total of 83 injuries or medical events (28.8/1000 starts). The commonest types of injury were tendon/suspensory injuries and lacerations/wounds. Multivariable logistic regression models were used to identify the relationship between predictor variables and the risk of injury. Risk of injury or medical event was associated with distance of the race and weight carried. The risk of injury, excluding medical events, was associated with the speed of the race and foot conformation. |
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Equine Behaviour @ team @ |
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3672 |
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Author |
Singer, E.R.; Barnes, J.; Saxby, F.; Murray, J.K. |
Title |
Injuries in the event horse: Training versus competition |
Type |
Journal Article |
Year |
2008 |
Publication |
The Veterinary Journal |
Abbreviated Journal |
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Volume |
175 |
Issue |
1 |
Pages |
76-81 |
Keywords |
Event horse; Superficial digital flexor tendonitis; Suspensory ligament desmitis; Exertional rhabdomyolysis |
Abstract |
Two related studies on injuries sustained by event horses during competition and during training are reported. During the cross-country phase of competition, the most common injuries were lacerations and abrasions to the carpus and stifle. Superficial digital flexor tendonitis and exertional rhabdomyolysis were significantly more common during Cours Complete Internationale (CCI) competitions compared to one-day event (ODE) competitions. The difference in injury types at ODEs and CCI competitions probably relates to the increased athletic demands of the CCI and the closer veterinary observation at these competitions. The results of the training study indicate that 21% of horses intending to compete in a CCI did not start due to injury. Forty-three percent of these injuries involved soft tissue structures with injuries to the superficial digital flexor tendon and the suspensory ligament each accounting for 33%. The most important area for future research is investigation of the risk factors for these career-threatening soft tissue injuries. |
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Admin @ knut @ |
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4352 |
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Author |
Heleski, C.R.; McGreevy, P.D.; Kaiser, L.J.; Lavagnino, M.; Tans, E.; Bello, N.; Clayton, H.M. |
Title |
Effects on behaviour and rein tension on horses ridden with or without martingales and rein inserts |
Type |
Journal Article |
Year |
2009 |
Publication |
The Veterinary Journal |
Abbreviated Journal |
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Volume |
181 |
Issue |
1 |
Pages |
56-62 |
Keywords |
Horse behaviour; Horse welfare; Equitation science; Rein tension; Martingales |
Abstract |
Unsteady hand position can cause discomfort to the horse, potentially leading to conflict behaviours (CB) such as head tossing or tail lashing. Some instructors feel that martingales or elastic rein inserts can reduce discomfort caused by inexperienced and unsteady hands. Others consider these devices to be inappropriate [`]crutches'. Four horses and nine riders were tested under three conditions in random order: plain reins, adjustable training martingales (TM), and elasticised rein inserts (RI). Rein-tension data (7Â s) and behavioural data (30Â s) were collected in each direction. Rein-tension data were collected via strain-gauge transducers. Behavioural data were assessed using an ethogram of defined behaviours. No differences in the number of CB were observed. Mean rein tension for TM was higher than that of RI or controls. Relative to the withers, the head was lower for horses ridden with martingales. Carefully fitted martingales may have a place in riding schools that teach novices. |
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1090-0233 |
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Equine Behaviour @ team @ |
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4807 |
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Author |
Goodwin, D.; McGreevy, P.; Waran, N.; McLean, A. |
Title |
How equitation science can elucidate and refine horsemanship techniques |
Type |
Journal Article |
Year |
2009 |
Publication |
The Veterinary Journal |
Abbreviated Journal |
Special Issue: Equitation Science |
Volume |
181 |
Issue |
1 |
Pages |
5-11 |
Keywords |
Horse; Training; Equitation; Learning theory; Ethology; Cognition |
Abstract |
The long-held belief that human dominance and equine submission are key to successful training and that the horse must be taught to [`]respect' the trainer infers that force is often used during training. Many horses respond by trialling unwelcome evasions, resistances and flight responses, which readily become established. When unable to cope with problem behaviours, some handlers in the past might have been encouraged to use harsh methods or devices while others may have called in a so-called [`]good horseman' or [`]horse whisperer' to remediate the horse. Frequently, the approaches such practitioners offer could not be applied by the horse's owner or trainer because of their lack of understanding or inability to apply the techniques. Often it seemed that these [`]horse-people' had magical ways with horses (e.g., they only had to whisper to them) that achieved impressive results although they had little motivation to divulge their techniques. As we begin to appreciate how to communicate with horses sensitively and consistently, misunderstandings and misinterpretations by horse and trainer should become less common. Recent studies have begun to reveal what comprises the simplest, most humane and most effective mechanisms in horse training and these advances are being matched by greater sharing of knowledge among practitioners. Indeed, various practitioners of what is referred to here as [`]natural horsemanship' now use techniques similar to the [`]whisperers' of old, but they are more open about their methods. Reputable horse trainers using natural horsemanship approaches are talented observers of horse behaviour and respond consistently and swiftly to the horse's subtle cues during training. For example, in the roundpen these trainers apply an aversive stimulus to prompt a flight response and then, when the horse slows down, moves toward them, or offers space-reducing affiliative signals, the trainer immediately modifies his/her agonistic signals, thus negatively reinforcing the desired response. Learning theory and equine ethology, the fundamentals of the emerging discipline of equitation science, can be used to explain almost all the behaviour modification that goes on in these contexts and in conventional horsemanship. By measuring and evaluating what works and what does not, equitation science has the potential to have a unifying effect on traditional practices and developing branches of equitation. |
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1090-0233 |
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Equine Behaviour @ team @ |
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4826 |
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Author |
Munsters, C.C.B.M.; Visser, K.E.K.; van den Broek, J.; Sloet van Oldruitenborgh-Oosterbaan, M.M. |
Title |
The influence of challenging objects and horse-rider matching on heart rate, heart rate variability and behavioural score in riding horses |
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Journal Article |
Year |
2012 |
Publication |
The Veterinary Journal |
Abbreviated Journal |
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Volume |
192 |
Issue |
1 |
Pages |
75-80 |
Keywords |
Horse-rider interaction; Horse compliance; Welfare; Heart rate; Behaviour score |
Abstract |
A good horse-rider ‘match’ is important in the context of equine welfare. To quantify the influence of repetition and horse-rider matching on the stress of horses encountering challenging objects, 16 Warmblood horses were ridden in a test-setting on three occasions. On each occasion the horse was ridden by a different rider and was challenged by three objects (A–C). Heart rate (HR), heart rate variability (HRV) of horse and rider, and behaviour score (BS) of the horse were obtained for each object and as a total for each test. The horse-rider interaction was evaluated with each combination and assessed as ‘matching’ or ‘mismatching’, and the horses were categorised as ‘compliant’, ‘partly-compliant’ or ‘non-compliant’. Horses exhibited a decreased HR (P = 0.015) and a decreased BS (P = 0.004) within and across different tests. ‘Matching’ horse-rider combinations exhibited less stress as indicated by reduced HR (‘match’ 69 ± 10 vs. ‘mismatch’ 72 ± 9, P = 0.001) and BS (‘match’ 1.9 ± 1.1 vs. ‘mismatch’ 3.8 ± 1.4, P = 0.017) of the horse. ‘Compliant’ (68 ± 8, P < 0.001) and ‘partly-compliant’ (71 ± 9, P = 0.002) horses had significantly lower HR than ‘non-compliant’ (75 ± 9) animals. The findings of the study indicate that HR and BS measurements support a subjective ‘match’ diagnosis and HR measurement may be a valuable tool in assessing horse compliance. |
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1090-0233 |
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Equine Behaviour @ team @ |
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5636 |
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Author |
McGreevy, P.D.; Oddie, C.; Burton, F.L.; McLean, A.N. |
Title |
The horse–human dyad: Can we align horse training and handling activities with the equid social ethogram? |
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Journal Article |
Year |
2009 |
Publication |
The Veterinary Journal |
Abbreviated Journal |
Special Issue: Equitation Science |
Volume |
181 |
Issue |
1 |
Pages |
12-18 |
Keywords |
Horse training; Social inter- and intra-specific communication; Learning; Counter–predator behaviour |
Abstract |
This article examines the recently completed equid ethogram and shows how analogues of social interactions between horses may occur in various human–horse interactions. It discusses how some specific horse–horse interactions have a corresponding horse–human interaction – some of which may be directly beneficial for the horse while others may be unusual or even abnormal. It also shows how correspondent behaviours sometimes become inappropriate because of their duration, consistency or context. One analogue is unlikely to hold true for all horse–human contexts, so when applying any model from horse–horse interactions to human–horse interactions, the limitations of the model may eclipse the intended outcome of the intervention. These limitations are especially likely when the horse is being ridden. Such analyses may help to determine the validity of extrapolating intra-specific interactions to the inter-specific setting, as is advocated by some popular horse-training methods, and highlight the subsequent limitations where humans play the role of the ‘alpha mare’ or leader in horse handling and training. This examination provides a constructive framework for further informed debate and empirical investigation of the critical features of successful intra-specific interactions. |
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1090-0233 |
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Equine Behaviour @ team @ |
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5729 |
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Author |
Belock, B.; Kaiser, L.J.; Lavagnino, M.; Clayton, H.M. |
Title |
Comparison of pressure distribution under a conventional saddle and a treeless saddle at sitting trot |
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Journal Article |
Year |
2012 |
Publication |
The Veterinary Journal |
Abbreviated Journal |
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Volume |
193 |
Issue |
1 |
Pages |
87-91 |
Keywords |
Horse; Rider; Equitation; Tack; Electronic pressure mat |
Abstract |
It can be a challenge to find a conventional saddle that is a good fit for both horse and rider. An increasing number of riders are purchasing treeless saddles because they are thought to fit a wider range of equine back shapes, but there is only limited research to support this theory. The objective of this study was to compare the total force and pressure distribution patterns on the horse’s back with conventional and treeless saddles. The experimental hypotheses were that the conventional saddle would distribute the force over a larger area with lower mean and maximal pressures than the treeless saddle. Eight horses were ridden by a single rider at sitting trot with conventional and treeless saddles. An electronic pressure mat measured total force, area of saddle contact, maximal pressure and area with mean pressure >11 kPa for 10 strides with each saddle. Univariate ANOVA (P < 0.05) was used to detect differences between saddles. Compared with the treeless saddle, the conventional saddle distributed the rider’s bodyweight over a larger area, had lower mean and maximal pressures and fewer sensors recording mean pressure >11 kPa. These findings suggested that the saddle tree was effective in distributing the weight of the saddle and rider over a larger area and in avoiding localized areas of force concentration. |
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Equine Behaviour @ team @ |
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5821 |
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Author |
Keeling, L.J.; Jonare, L.; Lanneborn, L. |
Title |
Investigating horse–human interactions: The effect of a nervous human |
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Journal Article |
Year |
2009 |
Publication |
The Veterinary Journal |
Abbreviated Journal |
Vet J |
Volume |
181 |
Issue |
1 |
Pages |
70-71 |
Keywords |
Behaviour; Reactivity; Heart rate; Accidents; Equitation |
Abstract |
The heart rates (HR) of horses and the people leading them (10 horses, 20 people), and riding them (17 horses, 17 people), were recorded in an indoor arena. The horses were Swedish leisure horses of mixed ages, sex and breed. All except two of the people were female and all were of mixed age and riding experience. Each horse–human pair walked or rode between points A and B (30 m) four times on each test occasion. However, just before the fourth pass, participants were told that an umbrella would be opened as they rode, or led, the horse past the assistant. The umbrella was not opened, so this pass was no different to the previous control occasions, but nevertheless there was an increase in HR for both the person (leading, P = 0.06; riding, P < 0.05) and the horse (being led, P < 0.05; being ridden, P < 0.05). The findings indicate that analysis of HR recorded simultaneously from people and horses under different experimental handling or riding conditions presents a useful tool to investigate horse–human interactions. |
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Equine Behaviour @ team @ |
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5908 |
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