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Author Linklater, W.L.; Cameron, E.Z.; Stafford, K.J.; Austin, T.
Title Chemical immobilisation and temporary confinement of two Kaimanawa feral stallions Type
Year 1998 Publication New Zealand veterinary journal Abbreviated Journal N Z Vet J
Volume 46 Issue 3 Pages 117-118
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ISSN 0048-0169 ISBN Medium
Area Expedition Conference
Notes PMID:16032032 Approved no
Call Number refbase @ user @ Serial (up) 412
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Author Hodgson, D.; Howe, S.; Jeffcott, L.; Reid, S.; Mellor, D.; Higgins, A.
Title Effect of prolonged use of altrenogest on behaviour in mares Type
Year 2005 Publication Veterinary journal (London, England : 1997) Abbreviated Journal Vet J
Volume 169 Issue 1 Pages 113-115
Keywords Administration, Oral; Anabolic Agents/adverse effects/*pharmacology; Animals; Behavior, Animal/*drug effects; Body Constitution/drug effects; Body Weight/drug effects; *Doping in Sports; Female; Horses/*physiology; Social Behavior; Social Dominance; Time Factors; Trenbolone/adverse effects/*analogs & derivatives/*pharmacology
Abstract Erratum in:

Vet J. 2005 May;169(3):321.

Corrected and republished in:

Vet J. 2005 May;169(3):322-5.

Oral administration of altrenogest for oestrus suppression in competition horses is believed to be widespread in some equestrian disciplines, and can be administered continuously for several months during a competition season. To examine whether altrenogest has any anabolic or other potential performance enhancing properties that may give a horse an unfair advantage, we examined the effect of oral altrenogest (0.044 mg/kg), given daily for a period of eight weeks, on social hierarchy, activity budget, body-mass and body condition score of 12 sedentary mares. We concluded that prolonged oral administration of altrenogest at recommended dose rates to sedentary mares resulted in no effect on dominance hierarchies, body mass or condition score.
Address Faculty of Veterinary Science, University of Sydney, Private Mailbag 4, Narellan Delivery Centre, Narellan, NSW 2567, Australia. davidh@camden.usyd.edu.au
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Language English Summary Language Original Title
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Series Volume Series Issue Edition
ISSN 1090-0233 ISBN Medium
Area Expedition Conference
Notes PMID:15683772 Approved no
Call Number refbase @ user @ Serial (up) 671
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Author Collery, L.
Title Observations of equine animals under farm and feral conditions Type Journal Article
Year 1974 Publication Equine veterinary journal Abbreviated Journal Equine Vet J
Volume 6 Issue 4 Pages 170-173
Keywords Aggression; Animals; Animals, Newborn; Breeding; Circadian Rhythm; Feeding Behavior; Female; Horses/*physiology; Housing, Animal; Humans; Male; Pregnancy; Puberty; Reproduction; Sexual Behavior, Animal; Social Dominance
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Language English Summary Language Original Title
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ISSN 0425-1644 ISBN Medium
Area Expedition Conference
Notes PMID:4473340 Approved no
Call Number refbase @ user @ Serial (up) 680
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Author Harman, A.M.; Moore, S.; Hoskins, R.; Keller, P.
Title Horse vision and an explanation for the visual behaviour originally explained by the 'ramp retina' Type Journal Article
Year 1999 Publication Equine veterinary journal Abbreviated Journal Equine Vet J
Volume 31 Issue 5 Pages 384-390
Keywords Animals; Behavior, Animal; Cell Count; Eye/*anatomy & histology; Ganglia, Sensory/cytology; Horses/*physiology; Refractive Errors/veterinary; Retina/cytology/*physiology; Vision/*physiology; Visual Acuity; Visual Fields
Abstract Here we provide confirmation that the 'ramp retina' of the horse, once thought to result in head rotating visual behaviour, does not exist. We found a 9% variation in axial length of the eye between the streak region and the dorsal periphery. However, the difference was in the opposite direction to that proposed for the 'ramp retina'. Furthermore, acuity in the narrow, intense visual streak in the inferior retina is 16.5 cycles per degree compared with 2.7 cycles per degree in the periphery. Therefore, it is improbable that the horse rotates its head to focus onto the peripheral retina. Rather, the horse rotates the nose up high to observe distant objects because binocular overlap is oriented down the nose, with a blind area directly in front of the forehead.
Address Department of Psychology, University of Western Australia, Nedlands, Australia
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ISSN 0425-1644 ISBN Medium
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Notes PMID:10505953 Approved no
Call Number refbase @ user @ Serial (up) 836
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Author Mills, D.S.
Title Applying learning theory to the management of the horse: the difference between getting it right and getting it wrong Type Journal Article
Year 1998 Publication Equine veterinary journal. Supplement Abbreviated Journal Equine Vet J Suppl
Volume Issue 27 Pages 44-48
Keywords Animals; *Behavior, Animal; Horses/*psychology; *Learning; Reinforcement (Psychology)
Abstract Horses constantly modify their behaviour as a result of experience. This involves the creation of an association between events or stimuli. The influence of people on the modification and generation of certain behaviour patterns extends beyond the intentional training of the horse. The impact of any action depends on how it is perceived by the horse, rather than the motive of the handler. Negative and positive reinforcement increase the probability of specific behaviours recurring i.e. strengthen the association between events, whereas punishment reduces the probable recurrence of a behaviour without providing specific information about the desired alternative. In this paper the term 'punishers' is used to refer to the physical aids, such as a whip or crop, which may be used to bring about the process of punishment. However, if their application ceases when a specific behaviour occurs they may negatively reinforce that action. Intended 'punishers' may also be rewarding (e.g. for attention seeking behaviour). Therefore, contingency factors (which define the relationship between stimuli, such as the level of reinforcement), contiguity factors (which describe the proximity of events in space or time) and choice of reinforcing stimuli are critical in determining the rate of learning. The many problems associated with the application of punishment in practice lead to confusion by both horse and handler and, possibly, abuse of the former. Most behaviour problems relate to handling and management of the horse and can be avoided or treated with a proper analysis of the factors influencing the behaviour.
Address De Montfort University Lincoln, School of Agriculture and Horticulture, Caythorpe, Lincs., UK
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Notes PMID:10485004 Approved no
Call Number refbase @ user @ Serial (up) 845
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Author Cooper, J.J.
Title Comparative learning theory and its application in the training of horses Type Journal Article
Year 1998 Publication Equine veterinary journal. Supplement Abbreviated Journal Equine Vet J Suppl
Volume Issue 27 Pages 39-43
Keywords Animals; *Behavior, Animal; Conditioning (Psychology); Horses/*psychology; *Learning; Reinforcement (Psychology)
Abstract Training can best be explained as a process that occurs through stimulus-response-reinforcement chains, whereby animals are conditioned to associate cues in their environment, with specific behavioural responses and their rewarding consequences. Research into learning in horses has concentrated on their powers of discrimination and on primary positive reinforcement schedules, where the correct response is paired with a desirable consequence such as food. In contrast, a number of other learning processes that are used in training have been widely studied in other species, but have received little scientific investigation in the horse. These include: negative reinforcement, where performance of the correct response is followed by removal of, or decrease in, intensity of a unpleasant stimulus; punishment, where an incorrect response is paired with an undesirable consequence, but without consistent prior warning; secondary conditioning, where a natural primary reinforcer such as food is closely associated with an arbitrary secondary reinforcer such as vocal praise; and variable or partial conditioning, where once the correct response has been learnt, reinforcement is presented according to an intermittent schedule to increase resistance to extinction outside of training.
Address Department of Zoology, University of Oxford, UK
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Notes PMID:10485003 Approved no
Call Number refbase @ user @ Serial (up) 846
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Author Collery L,
Title Sexual and social behaviour of the Connemara pony Type Journal Article
Year 1969 Publication Abbreviated Journal Br Vet J
Volume 125 Issue Pages 151-152
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial (up) 990
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Author DREVEMO S et al,
Title Equine locomotion: The analysis of linear and temporal stride characteristics of trotting standardbreds Type Journal Article
Year 1980 Publication Abbreviated Journal Equine Vet J
Volume 12 Issue Pages 60-65
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial (up) 1025
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Author Francis-Smith, K.; Wood-Gush, D.G.M.
Title Copropgagia as seen in thoroughbred foals Type Journal Article
Year 1977 Publication Equine veterinary journal Abbreviated Journal Equine Vet J
Volume 9 Issue 3 Pages 155-157
Keywords animal; article; coprophagy; defecation; eating; female; horse; horse disease; human; mastication
Abstract Four Thoroughbred foals were seen to quickly eat part of the faeces deposited by their own dams on some 40 per cent of the mare-defaecating occasions observed between the second and fifth week after birth. They did not do it before or after this period. This behaviour was thought to be a feeding pattern which formed a normal part of the foal's development.
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial (up) 1090
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Author KYDD J et al,
Title Transfer of exotic equine embryos to domestic horses and donkeys Type Journal Article
Year Publication Abbreviated Journal Equine Vet J
Volume Suppl 3 Issue Pages 80-83
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial (up) 1334
Permanent link to this record