The aim of this study was to investigate in post-weaned piglets the relationship between the reactivity to the Backtest (BT) and the body temperature during a restrain stress occurred at weighing. On the basis of the BT carried out at 10 and 17 days of age, 96 “high-resisters” (HR) and 96 “low-resisters” (LR) piglets were identified. At the post-weaning 4 groups of 48 subjects balanced for BT were examined. Each group was allocated in 12 post-weaned boxes, 4 with only HR piglets, 4 with only LR piglets and 4 mixed (2 LR and 2 HR piglets). During the weighing occurred at 36, 44 and 52 d of age, dorsal and ventral Infrared Thermography (IRT) images for each piglet were taken. At the same time, rectal temperature was recorded and room Thermal-Humidity Index (THI) was calculated. The type of box (only HR, only LR and mixed) affected significatively the rectal temperature which was higher for HR boxes (P<0.05). There was not a significant effect of BT reactivity on skin and rectal temperatures. Skin temperatures on dorsal and ventral positions were significantly influenced by THI and live weight, respectively.

RELATIONSHIP BETWEEN BODY TEMPERATURE AND COPING STYLE IN POST-WEANED PIGLETS

NANNI COSTA, LEONARDO;MAGNANI, DIEGO;CAFAZZO, SIMONA;DALL'OLIO, STEFANIA;
2011

Abstract

The aim of this study was to investigate in post-weaned piglets the relationship between the reactivity to the Backtest (BT) and the body temperature during a restrain stress occurred at weighing. On the basis of the BT carried out at 10 and 17 days of age, 96 “high-resisters” (HR) and 96 “low-resisters” (LR) piglets were identified. At the post-weaning 4 groups of 48 subjects balanced for BT were examined. Each group was allocated in 12 post-weaned boxes, 4 with only HR piglets, 4 with only LR piglets and 4 mixed (2 LR and 2 HR piglets). During the weighing occurred at 36, 44 and 52 d of age, dorsal and ventral Infrared Thermography (IRT) images for each piglet were taken. At the same time, rectal temperature was recorded and room Thermal-Humidity Index (THI) was calculated. The type of box (only HR, only LR and mixed) affected significatively the rectal temperature which was higher for HR boxes (P<0.05). There was not a significant effect of BT reactivity on skin and rectal temperatures. Skin temperatures on dorsal and ventral positions were significantly influenced by THI and live weight, respectively.
Proceedings of the XVth International Congress of the International Society for Animal Hygiene
1051
1054
Nanni Costa L.; Magnani D.; Calà P.; Cafazzo S.; Dall’Olio S.; Razzuoli E.; Amadori M.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/103155
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