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Author |
O'Grady, S.E. |
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Title |
Basic farriery for the performance horse |
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Journal Article |
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Year |
2008 |
Publication |
The Veterinary Clinics of North America. Equine Practice |
Abbreviated Journal |
Vet Clin North Am Equine Pract |
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24 |
Issue |
1 |
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203-218 |
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Abstract |
Proper farriery promotes a healthy functional foot and biomechanical efficiency and prevents lameness. Because the equine veterinarian is responsible for the soundness of the horse, a working knowledge of farriery becomes essential. A thorough knowledge of traditional horseshoeing enables the veterinarian to interact with the farrier at the farrier's level; this ultimately enhances and promotes quality hoof care. This article focuses on fundamental farriery and recognizing subtle changes in hoof conformation that can be used to preserve the integrity of the hoof capsule, along with the structures enclosed within, and thus prevent lameness in the performance horse. |
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Northern Virginia Equine, 8170 Patrickswell Lane, Marshall, VA 20115, USA. sogrady@look.net |
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English |
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1558-4224 |
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PMID:18314044 |
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Equine Behaviour @ team @ |
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4373 |
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Author |
Benhajali, H.; Richard-Yris, M. -A.; Leroux, M.; Ezzaouia, M.; Charfi, F.; Hausberger, M. |
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Title |
A note on the time budget and social behaviour of densely housed horses: A case study in Arab breeding mares |
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Journal Article |
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Year |
2008 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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Volume |
112 |
Issue |
1-2 |
Pages |
196-200 |
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Keywords |
Behavioural repertoire; Time budget; Mare; Social behaviour; Density |
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Abstract |
We observed a high-density herd (200 mares/ha) of 44 Arab breeding mares, while in a bare paddock in Tunisia. Twenty-minute animal focal samples and scan sampling were used to determine the time budget of the mares during the period from 9 a.m. to 3 p.m. and study their social behaviour. The data obtained reveal restricted behavioural repertoires with missing behaviour like rolling, allogrooming and lying down; unusual time budgets with a high frequency of locomotion that constitutes the most frequent activity (27.9 ± 19.47%) of the mares. Social interactions were restricted to agonistic interactions but despite the high stocking density, aggressions were not that frequent among mares. |
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0168-1591 |
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Equine Behaviour @ team @ |
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4774 |
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Author |
Krueger, K. |
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Title |
Social Ecology of Horses |
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Book Chapter |
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Year |
2008 |
Publication |
Ecology of Social Evolution |
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195-206 |
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Horses (Equidae ) are believed to clearly demonstrate the links between ecology and social organization. Their social cognitive abilities enable them to succeed in many different environments, including those provided for them by humans, or the ones domestic horses encounter when escaping from their human care takers. Living in groups takes different shapes in equids. Their aggregation and group cohesion can be explained by Hamilton“s selfish herd theory. However, when an individual joins and to which group it joins appears to be an active individual decision depending on predation pressure, intra group harassment and resource availability. The latest research concerning the social knowledge horses display in eavesdropping experiments affirms the need for an extension of simple herd concepts in horses for a cognitive component. Horses obviously realize the social composition of their group and determine their own position in it. The horses exceedingly flexible social behavior demands for explanations about the cognitive mechanisms, which allow them to make individual decisions. ”Ecology conditions like those that favour the evolution of open behavioural programs sometimes also favour the evolution of the beginnings of consciousness, by favouring conscious choice. Or in other words, consciousness originates with the choice that are left open by open behavioural programs." Popper (1977) |
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Springer Verlag |
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Heidelberg |
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j. Korb and J. Heinze |
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Equine Behaviour @ team @ |
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4387 |
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Author |
Heitor, F.; Vicente, L. |
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Title |
Maternal care and foal social relationships in a herd of Sorraia horses: Influence of maternal rank and experience |
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Journal Article |
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Year |
2008 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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Volume |
113 |
Issue |
1-3 |
Pages |
189-205 |
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Keywords |
Horse; Rank; Experience; Maternal care; Social relationships |
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The influence of maternal rank and experience on patterns of maternal care and social relationships of foals were investigated in a managed herd of Sorraia horses, Equus caballus. Social interactions and spatial relationships of 13 foals (seven females and six males) born to seven mares were examined from birth to 10 months of life, within the three major periods of foal development. Conflict over suckling between dam and foal was not generally affected by rank and experience, but higher-ranking mothers allowed more suckling during late lactation than lower-ranking mothers. Foals of higher-ranking mares spent more time in proximity to the mother during socialization. Maternal rank and experience did not significantly affect maternal protectiveness, foal independence from the mother or the development of affiliative relationships between foals and group members. Foals of higher-ranking mares received lower frequencies of aggression from other horses only in the first month of life. Dominance relationships among foals depended mainly on aggressiveness and were not associated with maternal rank. The large variability in maternal behaviour, the absence of a significant association between maternal rank and body condition at parturition and the stable social environment within this herd may partly account for the reported results. |
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0168-1591 |
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Equine Behaviour @ team @ |
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4778 |
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Author |
Krapp, A.; Bachmann I.; Troxler, J. |
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Title |
Das Liegeverhalten von Pferden in Gruppenhaltung |
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Conference Article |
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Year |
2008 |
Publication |
Schweizer Archiv für Tierheilkunde |
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Volume |
150 |
Issue |
4 |
Pages |
186-187 |
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Abstract |
Erarbeitung eines Lösungsansatzes zur Optimierung
des eingeschränkten Liegeverhaltens rangniedriger
Pferde in Gruppenhaltung |
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Das Liegeverhalten von Pferden in Gruppenhaltung 2008.pdf |
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Equine Behaviour @ team @ |
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5306 |
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Author |
Goodwin, D.; McGreevy, P.D.; Heleski, C.; Randle, H.; Waran, N. |
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Title |
Equitation science: The application of science in equitation |
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Journal Article |
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2008 |
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Journal of Applied Animal Welfare Science |
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11 |
Issue |
3 |
Pages |
185-190 |
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School of Natural Sciences, Unitec, New Zealand |
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Notes |
Export Date: 13 November 2008; Source: Scopus |
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Call Number |
Equine Behaviour @ team @ |
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4656 |
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Author |
Lansade, L.; Bouissou, M.-F.; Erhard, H.W. |
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Title |
Fearfulness in horses: A temperament trait stable across time and situations |
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Journal Article |
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Year |
2008 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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115 |
Issue |
3-4 |
Pages |
182-200 |
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Keywords |
Horse; Temperament; Fearfulness; Novelty; Suddenness; Behavioural tests |
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Abstract |
The purpose of this study was to test the existence of a “fearfulness” trait in horses, by testing the stability across situations and over time of the responses to different fear-eliciting situations. It was also to identify which behavioural parameters are the best indicators of this trait. Sixty-six Welsh ponies and 44 Anglo-Arab horses were successively tested at 8 months and 1.5 years of age. Of these, 33 Welsh ponies and 21 Anglo-Arabs were also tested at 2.5 years of age. At each age, they were subjected to four test situations. The first test involved the introduction of a novel object in the test pen (novel object test). In the second test, a novel area was placed in the pen between the horse and a bucket of food, to determine the time the horse took to cross the area (novel area test). Finally, the third test consisted in suddenly opening an umbrella in front of the horse while it was eating (surprise test). During these tests, many behavioural parameters were recorded. A fourth test consisted of a surprise test during which the horse was held by a handler while its heart rate was measured. Spearman correlations were used to identify links between behavioural parameters measured during different tests and between different ages. Reactions to the first three tests showed consistency between them and over time. Among all the behavioural parameters measured during these tests, some presented high stability over time and were well correlated with behaviours expressed during other tests, indicating they are the best indicators of a fearfulness trait: the frequency of licking/nibbling the novel object, the time to put one foot on the novel area and to eat from a bucket placed just behind it, and the flight distance and the time to eat under the opened umbrella. The stability across responses expressed in various fear-eliciting events and over time from 8 months to 2.5 years of age suggests the existence of a [`]fearfulness' trait in horses. The different indexes of heart rate measured or calculated during the surprise effect present limited stability over time and almost no correlation with the behavioural parameters measured during the other three tests. We conclude that, in contrast to the previously mentioned behaviours, these are not reliable measures of a temperament trait. From a practical point of view, this study shows that it is possible to identify a horse's level of fearfulness as early as 8 months of age using the first three tests. |
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0168-1591 |
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Equine Behaviour @ team @ |
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5167 |
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Author |
Fabbri-Destro, M.; Rizzolatti, G. |
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Title |
Mirror Neurons and Mirror Systems in Monkeys and Humans |
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Journal Article |
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Year |
2008 |
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Physiology |
Abbreviated Journal |
Physiology |
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23 |
Issue |
3 |
Pages |
171-179 |
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Mirror neurons are a distinct class of neurons that transform specific sensory information into a motor format. Mirror neurons have been originally discovered in the premotor and parietal cortex of the monkey. Subsequent neurophysiological (TMS, EEG, MEG) and brain imaging studies have shown that a mirror mechanism is also present in humans. According to its anatomical locations, mirror mechanism plays a role in action and intention understanding, imitation, speech, and emotion feeling. |
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10.1152/physiol.00004.2008 |
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Equine Behaviour @ team @ |
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5014 |
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Author |
Prato-Previde, E.; Marshall-Pescini, S.; Valsecchi, P. |
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Title |
Is your choice my choice` The owners effect on pet dogs? ( Canis lupus familiaris ) performance in a food choice task |
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Journal Article |
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Year |
2008 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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11 |
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1 |
Pages |
167-174 |
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Dog – Dog-owner relationship – Food choice task – Quantity discrimination |
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Abstract This study investigates the influence of owners on their dogs performance in a food choice task using either different or equal quantities of food. Fifty-four pet dogs were tested in three different conditions. In Condition 1 we evaluated their ability to choose between a large and small amount of food (quantity discrimination task). In Condition 2 dogs were again presented with a choice between the large and small food quantity, but only after having witnessed their owner favouring the small quantity. In Condition 3 dogs were given a choice between two equally small quantities of food having witnessed their owner favouring either one or the other. A strong effect of the owner on the dogs`` performance was observed. In Condition 1 dogs as a group chose significantly more often the large food quantity, thus showing their ability to solve the quantity discrimination task. After observing their owner expressing a preference for the small food quantity they chose the large quantity of food significantly less than in the independent choice situation. The tendency to conform to the owner`s choice was higher when the dogs had to choose between equally small quantities of food (Condition 3) rather than between a large and a small one (Condition 2). These results provide evidence that dogs can be influenced by their owners even when their indications are clearly in contrast with direct perceptual information, thus leading dogs to ultimately make counterproductive choices. |
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Admin @ knut @ |
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4216 |
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Author |
Mirabet, V.; Fréon, P.; Lett, C. |
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Title |
Factors affecting information transfer from knowledgeable to naive individuals in groups |
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Journal Article |
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2008 |
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Behavioral Ecology and Sociobiology |
Abbreviated Journal |
Behav. Ecol. Sociobiol. |
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63 |
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2 |
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159-171-171 |
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Biomedical and Life Sciences |
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There is evidence that individuals in animal groups benefit from the presence of knowledgeable group members in different ways. Experiments and computer simulations have shown that a few individuals within a group can lead others, for a precise task and at a specific moment. As a group travels, different individuals possessing a particular knowledge may act as temporary leaders, so that the group will, as a whole, follow their behaviour. In this paper, we use a model to study different factors influencing group response to temporary leadership. The model is based on four individual behaviours. Three of those, attraction, repulsion, and alignment, are shared by all individuals. The last one, attraction toward the source of a stimulus, concerns only a fraction of the group members. We explore the influence of group size, proportion of stimulated individuals, number of influential neighbours, and intensity of the attraction to the source of the stimulus, on the proportion of the group reaching this source. Special attention is given to the simulation of large group size, close to those observed in nature. Groups of 100, 400 and 900 individuals are currently simulated, and up to 8,000 in one experiment. We show that more stimulated individuals and a larger group size both induce the arrival of a larger fraction of the group. The number of influential neighbours and the intensity of the stimulus have a non-linear influence on the proportion of the group arrival, displaying first a positive relationship and then, above a given threshold, a negative one. We conclude that an intermediate level of group cohesion provides optimal transfer information from knowledgeable to naive individuals. |
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Springer Berlin / Heidelberg |
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0340-5443 |
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Equine Behaviour @ team @ |
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5295 |
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