Funding for this research was provided by:
European Health and Welfare ERA-net
Svenska Forskningsrådet Formas
Received: 5 May 2020
Accepted: 28 September 2020
First Online: 7 October 2020
Ethics approval and consent to participate
: The study comprised only behavioural observations of privately owned commercial pigs and the treatment aimed to improve animal welfare. Due to the low severity of the treatment of the animals (increased straw ration) and usage of privately owned animals this experiment did not require approval by an ethical committee for animal experiments due to Swedish National legislation [CitationRef removed]. All participation was voluntary and accepted through verbal consent and withdrawal from the experiment could be done at any point in time if the farmer wanted to according to SJVFS 2019:9 2 Chapt. 17 §.
: Not applicable.
: The authors declare that they have no competing interests.