On the rewarding nature of appetitive feeding behaviour in pigs ( Sus scrofa ) : Do domesticated pigs contrafreeload ?

@inproceedings{Jonge2008OnTR,
  title={On the rewarding nature of appetitive feeding behaviour in pigs ( Sus scrofa ) : Do domesticated pigs contrafreeload ?},
  author={Francien H. de Jonge and Sarah-Lee Tilly and Annemarie J. M. Baars and Berry M. Spruijt},
  year={2008}
}
Contrafreeloading is the phenomenon that animals prefer to ‘‘work’’ for food even though ‘‘free’’ food is available nearby. In this study, we investigated whether pigs express contrafreeloading in a test situation where the searching, finding and consuming of food items resembles a natural foraging situation. For that purpose, we investigated whether pigs prefer an environment with straw and hidden food rewards (chocolate raisins) to an environment with straw, but without hidden food rewards… CONTINUE READING