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  • Title: Effect of transportation on the sympatho-adrenal system responses in horses.
    Author: Medica P, Bruschetta G, Cravana C, Ferlazzo A, Fazio E.
    Journal: Res Vet Sci; 2019 Aug; 125():401-404. PubMed ID: 29126628.
    Abstract:
    The objective of current study was to evaluate the effect of transportation stress on the circulating adrenaline (A), noradrenaline (NA) and dopamine (DA) responses of stallions, according to the different distances. Forty-two stallions were studied before and after road transportation of 100, 200 and 300km, for a period of 1-3h. An increase in plasma A after 100km (P<0.001) was observed. A similar result was seen in plasma NA after 100km (P<0.001), and 300km (P<0.001). Increases in plasma DA after 100 and 200km (P<0.0001) were observed, with a decrease after 300km (P<0.0001). Significant interactions among groups and times for A (P<0.0001), NA (P<0.0006) and DA (P<0.0001) changes were observed. These results indicate that the sympatho-adrenal system response of horses was greater after short (100km), than medium-longer period of transportation (200 and 300km). This may indicate an adaptation process during transport, considering A and NA as the primary candidate neurotransmitters for the maintenance of homeostatic process to alleviate the effects of the perceived transportation stress.
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