Received: 1 March 2019
Accepted: 27 May 2019
First Online: 4 June 2019
Ethics approval and consent to participate
: There is no need of ethical approval as the study was carried out on swine reared in different groups in the farm and normally fed with different acorns available in different seasons. All the animals were evaluated at slaughterhouse. Moreover, the Authors declare that have obtained written informed consent to use the animals in the study from the owner of the animals.
: Not applicable.
: The authors declare that they have no competing interests.