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Baragli, P.; Paoletti, E.; Vitale, V.; Sighieri, C. |
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Title |
Looking in the correct location for a hidden object: brief note about the memory of donkeys (Equus asinus) |
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Journal Article |
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2011 |
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Ethology Ecology & Evolution |
Abbreviated Journal |
Ethology Ecology & Evolution |
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23 |
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2 |
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187-192 |
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Abstract |
In recent years, considerable literature has been published on cognition in horses; however, much less is known about the cognitive abilities of domestic donkey (Equus asinus). This study aimed to expand our knowledge of donkey cognition by assessing their short-term memory capacity. We employed a detour problem combined with the classic delayed-response task, which has been extensively used to compare working memory duration in a variety of different species. A two-point choice apparatus was used to investigate location recall and search behaviour for a food target, after a short delay following its disappearance. Four donkeys completed the task with a 10 sec delay, while four others were tested with a 30 sec delay. Overall, each group performed above chance level on the test, showing that subjects had successfully encoded, maintained, and retrieved the existence and location of the target despite the loss of visual contact. |
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Taylor & Francis |
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0394-9370 |
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doi: 10.1080/03949370.2011.554885 |
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Equine Behaviour @ team @ |
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6177 |
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Author |
Baragli, P.; Tedeschi, D.; Masini, A.P.; Magnaghi, N.; Martelli, F.; Sighieri, C. |
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Title |
Estimation of performance in elite endurance horses by means of an exercise test in field conditions |
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Journal Article |
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Year |
2001 |
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Ippologia |
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Valutazione della performance in cavalli da endurance di elite mediante test diesercizio in campo |
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12 |
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1 |
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13-19 |
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In human sports medicine exercise tests are normally used to check training progression. Correlation tests between blood lactate concentration and exercise speed are often used for this purpose. Studies have been done to adjust exercise tests for athletic horses using the same principle. The aim of this work was to verify the practical possibility that the anaerobic threshold in elite endurance horses could be calculated by adjusting a submaximal exercise field test in order to obtain reference parameters for endurance horses. Ten selected horses from the Italian National Endurance Team were used for this study. The tests were conducted on an 800 meters grass oval. Horses performed three steps (800 meters every step), at increasing speed with two minute intervals between each step. Riders were informed of the ideal speed for every step (5, 7.5, 10 m/s) and the real velocity was calculated on the basis of time taken to finish a single step. Blood samples were obtained via venipuncture from the jugular vein, immediately before the beginning of the test and 60 seconds after the end of each step. The following parameters were evaluated for each horse: individual anaerobic threshold (VSI), anaerobic threshold (V4) and exercise velocity corresponding to a lactate concentration of 2 mM/I (V2). Analysis of results indicate that lactate concentration is exponentially related to exercise speed for the entire test. VSI, V4, V2, were (mearttsd): 25.7±5.1; 30.5±2.5; 21.1±2.9 km/h respectively. |
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Dipto. Anat., Biochim. Fisiol. Vet., Univ. degli Studi di Pisa |
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Export Date: 13 November 2008; Source: Scopus |
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Equine Behaviour @ team @ |
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4654 |
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