Research has shown there is a relationship between personality and piglets’ reaction to being restrained on their backs. This study was conducted to determine if piglets’ reaction to being restrained on their back at 10 and 17 days of age correlated with their behaviour once they reached breeding age. During restraint, if two or more escape attempts were made they were classified as high resister (HR) pigs and if less than two escape attempts were made than they were classified as low resister (LR) pigs. At weaning, two groups were formed which contained, six HR and six LR pigs. The remainder of the group was composed of littermates, ensuring the group contained at least one littermate for each of the twelve resister pigs. To determine heart rate at feeding, the pigs were conditioned to respond to a bell sounding prior to feed being delivered (measured heart rate at 29 weeks of age). Aggressive behaviour during the afternoon feeding was recorded at 23 and 27 weeks of age. At 26 weeks of age, a 24 h of salivary cortisol profile was taken. There was not a difference in body weight, aggression or heart rate responses to feeding between the HR and LR gilts. There was a difference in the cortisol profile, LR gilts had a higher baseline level than HR gilts. This difference was only seen when the lights were on, when the lights were off, the cortisol levels were similar between the two behavioural categories. Although there was not a difference between the two behavioural categories, both groups showed elevated heart rates when the bell sounded, signaling feeding. The elevation in heart rate persisted for more than an hour after feeding. It was concluded that similar levels of aggression, heart rate increase and body weight for both groups indicated that these parameters do not relate to the restraint tests performed when the gilts were young. Thus, the researchers were unable to define two different personalities.