| Records |
| Author |
Hagen, K.; Broom, D.M. |
| Title |
Emotional reactions to learning in cattle |
Type |
Journal Article |
Year  |
2004 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
| Volume |
85 |
Issue |
3 |
Pages |
203-213 |
| Keywords |
Cattle; Expressive behaviour; Operant learning; Reinforcer |
| Abstract |
It has been suggested that during instrumental learning, animals are likely to react emotionally to the reinforcer. They may in addition react emotionally to their own achievements. These reactions are of interest with regard to the animals' capacity for self-awareness. Therefore, we devised a yoked control experiment involving the acquisition of an operant task. We aimed to identify the emotional reactions of young cattle to their own learning and to separate these from reactions to a food reward. Twelve Holstein-Friesian heifers aged 7-12 months were divided into two groups. Heifers in the experimental group were conditioned over a 14-day period to press a panel in order to open a gate for access to a food reward. For heifers in the control group, the gate opened after a delay equal to their matched partner's latency to open it. To allow for observation of the heifers' movements during locomotion after the gate had opened, there was a 15m distance in the form of a race from the gate to the food trough. The heart rate of the heifers, and their behaviour when moving along the race towards the food reward were measured. When experimental heifers made clear improvements in learning, they were more likely than on other occasions to have higher heart rates and tended to move more vigorously along the race in comparison with their controls. This experiment found some, albeit inconclusive, indication that cattle may react emotionally to their own learning improvement. |
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0168-1591 |
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Equine Behaviour @ team @ |
Serial |
6551 |
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| Author |
Nakagawa, S. |
| Title |
A farewell to Bonferroni: the problems of low statistical power and publication bias |
Type |
Journal Article |
| Year |
2004 |
Publication |
Behavioral Ecology |
Abbreviated Journal |
beheco |
| Volume |
15 |
Issue |
6 |
Pages |
1044-1045 |
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1045-2249 |
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no |
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Equine Behaviour @ team @ |
Serial |
6560 |
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| Author |
Davies, H.M.S.; Merritt, J.S. |
| Title |
Surface strains around the midshaft of the third metacarpal bone during turning |
Type |
Journal Article |
| Year |
2004 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Veterinary Journal |
| Volume |
36 |
Issue |
8 |
Pages |
689-692 |
| Keywords |
horse; exercise; strain; third metacarpal bone; turns |
| Abstract |
Summary Reasons for performing study: Bone strains quantify skeletal effects of specific exercise and hence assist in designing training programmes to avoid bone injury. Objective: To test whether compressive strains increase on the lateral surface of the inside third metacarpal bone (McIII) and the medial surface of the outside McIII in a turn. Methods: Rosette strain gauges on dorsal, medial and lateral surfaces of the midshaft of the left McIII in 2 Thoroughbred geldings were recorded simultaneously during turning at the walk on a bitumen surface. Results: Medial surface: Compression peaks were larger in the outside limb. Tension peaks were larger in the inside limb and in a tighter turn. On the lateral surface compression and tension peaks were larger on the inside limb, which showed the largest recorded strains (compression of -1400 microstrains). Dorsal compression strains were larger on the outside limb and on a larger circle. Tensile strains were similar in both directions and larger on a larger circle. Conclusions: Compressive strains increased on the lateral surface of the inside McIII and medial surface of the outside McIII in a turn. Potential relevance: Slow-speed turning exercise may be sufficient to maintain bone mechanical characteristics in the inside limb lateral McIII cortex. Further work is needed to confirm these findings and to determine whether faster gaits and/or tighter turns are sufficient to cause bone modelling levels of strain in the medial and lateral McIII cortex. |
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American Medical Association (AMA) |
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0425-1644 |
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Equine Behaviour @ team @ |
Serial |
6715 |
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| Author |
Rhodin, M.; Johnston, C.; Holm, K.R.; Wennerstrand, J.; Drevemo, S. |
| Title |
The influence of head and neck position on kinematics of the back in riding horses at the walk and trot |
Type |
Journal Article |
| Year |
2005 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
| Volume |
37 |
Issue |
1 |
Pages |
7-11 |
| Keywords |
Acceleration; Animals; Back/*physiology; Biomechanics; Exercise Test/veterinary; Female; Gait/*physiology; Head/*physiology; Horses/*physiology; Male; Movement/physiology; Neck/*physiology; Walking/physiology |
| Abstract |
REASONS FOR PERFORMING STUDY: A common opinion among riders and in the literature is that the positioning of the head and neck influences the back of the horse, but this has not yet been measured objectively. OBJECTIVES: To evaluate the effect of head and neck position on the kinematics of the back in riding horses. METHODS: Eight Warmblood riding horses in regular work were studied on a treadmill at walk and trot with the head and neck in 3 different predetermined positions achieved by side reins attached to the bit and to an anticast roller. The 3-dimensional movement of the thoracolumbar spine was measured from the position of skin-fixed markers recorded by infrared videocameras. RESULTS: Head and neck position influenced the movements of the back, especially at the walk. When the head was fixed in a high position at the walk, the flexion-extension movement and lateral bending of the lumbar back, as well as the axial rotation, were significantly reduced when compared to movements with the head free or in a low position. At walk, head and neck position also significantly influenced stride length, which was shortest with the head in a high position. At trot, the stride length was independent of head position. CONCLUSIONS: Restricting and restraining the position and movement of the head and neck alters the movement of the back and stride characteristics. With the head and neck in a high position stride length and flexion and extension of the caudal back were significantly reduced. POTENTIAL RELEVANCE: Use of side reins in training and rehabilitation programmes should be used with an understanding of the possible effects on the horse's back. |
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Department of Anatomy, Swedish University of Agricultural Sciences, 750 07 Uppsala, Sweden |
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English |
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0425-1644 |
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PMID:15651727 |
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no |
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Equine Behaviour @ team @ |
Serial |
3657 |
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| Author |
Cooper, J.J.; Albentosa, M.J. |
| Title |
Behavioural adaptation in the domestic horse: potential role of apparently abnormal responses including stereotypic behaviour |
Type |
Journal Article |
| Year |
2005 |
Publication |
Livestock Production Science |
Abbreviated Journal |
Livest. Prod. Sci. |
| Volume |
92 |
Issue |
2 |
Pages |
177-182 |
| Keywords |
Behavioural adaptation; Horse; Stereotypic behaviour |
| Abstract |
Classically, biologists have considered adaptation of behavioural characteristics in terms of long-term functional benefits to the individual, such as survival or reproductive fitness. In captive species, including the domestic horse, this level of explanation is limited, as for the most part, horses are housed in conditions that differ markedly from those in which they evolved. In addition, an individual horse's reproductive fitness is largely determined by man rather than its own behavioural strategies. Perhaps for reasons of this kind, explanations of behavioural adaptation to environmental challenges by domestic animals, including the capacity to learn new responses to these challenges, tend to concentrate on the proximate causes of behaviour. However, understanding the original function of these adaptive responses can help us explain why animals perform apparently novel or functionless activities in certain housing conditions and may help us to appreciate what the animal welfare implications might be. This paper reviews the behavioural adaptation of the domestic horse to captivity and discusses how apparently abnormal behaviour may not only provide a useful practical indicator of specific environmental deficiencies but may also serve the animal as an adaptive response to these deficiencies in an “abnormal” environment. |
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0301-6226 |
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no |
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Equine Behaviour @ team @ |
Serial |
4829 |
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| Author |
Kruska, D.C.T. |
| Title |
On the evolutionary significance of encephalization in some eutherian mammals: effects of adaptive radiation, domestication, and feralization |
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Journal Article |
| Year |
2005 |
Publication |
Brain Behav Evol |
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65 |
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no |
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Equine Behaviour @ team @ Kruska2005 |
Serial |
6235 |
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| Author |
Saunders, F.C.; McElligott, A.G.; Safi, K.; Hayden, T.J. |
| Title |
Mating tactics of male feral goats (Capra hircus): risks and benefits |
Type |
Journal Article |
| Year |
2005 |
Publication |
Acta Ethol |
Abbreviated Journal |
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8 |
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no |
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Equine Behaviour @ team @ Saunders2005 |
Serial |
6252 |
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| Author |
Shi, J.; Dunbar, R.I.M.; Buckland, D.; Miller, D. |
| Title |
Dynamics of grouping patterns and social segregation in feral goats (Capra hircus) on the Isle of Rum, NW Scotland |
Type |
Journal Article |
| Year |
2005 |
Publication |
Mammalia |
Abbreviated Journal |
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69 |
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no |
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Equine Behaviour @ team @ Shi2005 |
Serial |
6257 |
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| Author |
Pérez-Barbería, F.J.; Gordon, I.J. |
| Title |
Gregariousness increases brain size in ungulates |
Type |
Journal Article |
| Year |
2005 |
Publication |
Oecologia |
Abbreviated Journal |
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| Volume |
145 |
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Equine Behaviour @ team @ Pérez-Barbería2005 |
Serial |
6258 |
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| Author |
Galef, B.G.; Laland, K.N. |
| Title |
Social Learning in Animals: Empirical Studies and Theoretical Models |
Type |
Journal Article |
| Year |
2005 |
Publication |
BioScience |
Abbreviated Journal |
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| Volume |
55 |
Issue |
6 |
Pages |
489-499 |
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AbstractThe last two decades have seen a virtual explosion in empirical research on the role of social interactions in the development of animals' behavioral repertoires, and a similar increase in attention to formal models of social learning. Here we first review recent empirical evidence of social influences on food choice, tool use, patterns of movement, predator avoidance, mate choice, and courtship, and then consider formal models of when animals choose to copy behavior, and which other animals' behavior they copy, together with empirical tests of predictions from those models. |
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0006-3568 |
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| Notes |
10.1641/0006-3568(2005)055[0489:Sliaes]2.0.Co;2 |
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Equine Behaviour @ team @ |
Serial |
6398 |
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