Summary of principles of good practice for the production of pigs used for xenotransplantation. A report of the expert committee on xenotransplantation. Groupe d'Experts Xénogreffes

The choice and selection of pigs used as donors of organs or tissues are founded on the concept of quality assurance of the animals included in the original herd. The rearing conditions in this herd have to guarantee a defined health status. All the stages of production, rearing, slaughter and collection of organs or tissues used for xenotransplantation or xenograft have to be fully controlled in regard to health.

Published by Pathologie-biologie, 2000. The guideline itself is at the source linked here.

pubmed.ncbi.nlm.nih.gov/10868418/