CNS excitability, habituation and rate of learning of pigs (Sus scrofa f. domestica)
1999
Novacky, M. (Univerzita Komenskeho, Bratislava (Slovak Republic). Prirodovedecka Fakulta) | Liday, I. | Debreceni, O.
The differences in CNS excitability and habituation process of pigs (Sus crofa f. domestica) of the White Meaty breed (n-14) were investigated. Motor activity, vocal sounds and sniffing of pigs aged 3(37 kg) and 6(90 kg) months were tested for using a 30-minute habituation test. Evaluation of the above indicators showed the significant differences in CNS excitability and motor activity between 3- and 6-month old sows. No significant differences were detected in vocal sounds and sniffing. As to the dynamics of habituation. a decreased frequency was observed for the indicators of motor activity and sniffing during testing, whilst the overall evaluation of vocal sounds revealed dishabituation, i.e. an increase in vocal sounds occurence. At the same time, the eventual relationship between CNS excitability, dynamics of habituation and a rate of learning of pigs in a maze was studied. Both boars and sows showed a high capability to learn quickly. From the point of view of sexual differences, however, the learning ability of sows was found to be greater (P0.01)
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