Ear tagging in piglets: the cortisol response with and without analgesia in comparison with castration and tail docking

Autor: J. Numberger, M. Ritzmann, N. Übel, M. Eddicks, S. Reese, S. Zöls
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Animal, Vol 10, Iss 11, Pp 1864-1870 (2016)
Druh dokumentu: article
ISSN: 1751-7311
17517311
DOI: 10.1017/S1751731116000811
Popis: The objectives of the present study were to compare the cortisol response caused by ear tagging piglets with the distress caused by other known painful husbandry procedures (e.g. castration and tail docking) and to evaluate the effectiveness of analgesia with meloxicam to reduce the cortisol response caused by these procedures. In total, 210 male piglets were randomised to equal numbers (n=30) into one of seven groups: a control group which was only handled (H), an ear tagged group that received no analgesia (ET), an ear tagged group with analgesia (ETM), a castration group with no analgesia (C), a castration group with analgesia (CM), a tail-docked group with no analgesia (TD) and a tail-docked group with analgesia (TDM). The procedures were carried out on day 3 or 4 after farrowing. Five blood samples were taken from each piglet: 30 min before the respective procedure (baseline value), and 30, 60 min, 4 and 7 h after processing, to assess cortisol concentrations. Means as well as the area under the curve (AUC) value were analysed and the effective sizes of the procedures were established. At 7 h after the experimental treatment, cortisol concentrations had returned to base values in all groups. ET evoked a greater cortisol response than H piglets at 30 min (P
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