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Aversiveness of husbandry procedures for pre-weaned foals: A comparison using behavioural and physiological indices

By Aleksandra Górecka-Bruzda, Zbigniew Jaworski, Mira Suwała, Magdalena Sobczyńska, Ewa Jastrzębska, Magdalena Ogłuszka, Carol Sankey, Marlena Boroń, Tadeusz Jezierski

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Abstract

Husbandry procedures are necessary for different purposes in horse breeding. The aim of the present study was to assess the aversiveness and effects on the horse-human relationship of a range of common husbandry procedures, in pre-weaned non-habituated Konik polski foals. Our measures included commonly and previously validated behavioural and physiological measures of stress, as well as behavioural responses to an approaching human. Twenty-seven foals (11 colts and 16 fillies) were submitted to four husbandry procedures: hoof trimming, microchip implantation, blood sampling and body conformation measurements. Avoidance behaviours (head shaking, body jerks, withdrawals and stepping, AB), heart rate (HR), maximum heart rate (HRmax), square root of the mean of the sum of squares of differences between adjacent interbeats intervals (RMSSD), low-frequency power to high-frequency power ratio (LF/HF ratio) and salivary cortisol responses were compared between procedures. Moreover, reactivity to a passive and active human (latency to approach a human; flight distance on human approach, probability of touching the horse and probability of flight) was assessed before and after application of procedures. All procedures provoked avoidance behaviours during treatments, as well as an increase in all physiological indices as compared to pre-treatment levels. During treatments, the highest values of HR and HRmax were recorded for hoof trimming. Overall, increase in cortisol levels was greater in fillies (199.0±325.6pg/ml) than in colts (139.5±215.1pg/ml, P

Publication Title Applied Animal Behaviour Science
Volume 191
Pages 31-38
ISBN/ISSN 0168-1591
DOI https://doi.org/10.1016/j.applanim.2017.02.007
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Tags
  1. Aversion
  2. Horses
  3. Human-animal relationships
  4. Husbandry
  5. saliva