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Minero, M.; Zucca, D.; Canali, E. |
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Title |
A note on reaction to novel stimulus and restraint by therapeutic riding horses |
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Journal Article |
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Year |
2006 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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Volume |
97 |
Issue |
2-4 |
Pages |
335-342 |
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Keywords |
Horse; Therapeutic riding; Behavioural indicators; Heart rate; Lymphocyte proliferation |
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Abstract |
Little research has been done to measure reactivity objectively in therapeutic riding horses (TRH). As individual reactivity and chronic stress could be assessed by exposing animals to acute, novel stressors, the authors of this work aimed at comparing reactions of TRHs and jumping horses (JH) to two challenges. Four TRHs and four JHs were exposed to a restraint covering their head with a hood for 1 h and to a startling stimulus (a 40 cm long, red and white synthetic holiday garland shaken with a rustling noise inside the box). Heart rate (HR) and heart rate variability (HRV) were recorded continuously and telemetrically, the reaction was video-recorded and analysed with a software for behavioural analysis. Blood samples were collected before and after each challenge to determine lymphocyte proliferation and other biochemical parameters. Horses spent most of the time immobile, during the challenges (p < 0.05). TRHs had a significantly higher average basal HR than JH (p < 0.05), probably due to their better condition. HR varied among different behaviours during the restraint (p < 0.05): the average HR during “pawing” was higher than during other behaviours (p < 0.005). A significant decrease in the proliferation of lymphocytes in samples taken after the removal of the hood (p < 0.05) was found, while the other stress related parameters did not vary significantly after the challenges. The authors conclude that TRHs did not react less than JHs to the new stimuli and this should be taken into consideration while planning their daily work and management. |
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refbase @ user @ |
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279 |
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Author |
Croneya, C.C. |
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Title |
Group size and cognitive processes |
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Journal Article |
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Year |
2007 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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Volume |
103 |
Issue |
3-4 |
Pages |
15-228 |
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Keywords |
Group size; Social complexity; Social learning; Cognitive processes |
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Abstract |
Animal group sizes may exert important effects on various cognitive mechanisms. Group
size is believed to exert pressures on fundamental brain structures that correlate with the
increased social demands placed on animals living in relatively large, complex and dynamic
social organizations. There is strong experimental evidence connecting social complexity,
social learning and development of other cognitive abilities in a broad range of wild and
domesticated animal species. In particular, group size seems to have significant effects on
animals? abilities to derive concrete and abstract relationships. Here, we review the literature
pertaining to cognitive processes and behaviours of various animal species relative to group
size, with emphasis on social learning. It is suggested that understanding the relationship
between group size and cognition in animals may yield practical animal management
benefits, such as housing and conservation strategies, and may also have implications for
improved animal welfare. |
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Ruth C. Newberryb |
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refbase @ user @ |
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277 |
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