AGROVOC

Butter is a fatty product derived exclusively from milk and/or products obtained from milk, principally in the form of an emulsion of the type water-in-oil. (FAO & WHO. 2022. Standard for Butter. Codex Standard, No. CXS 279-1971. Rome. https://www.fao.org/fao-who-codexalimentarius)

Political ecology is a field within environmental studies focusing on power relations as well as the coproduction of nature and society. (Tor A. Benjaminsen, Hanne Svarstad, Political Ecology, Editor(s): Brian Fath, Encyclopedia of Ecology (Second Edition), Elsevier, 2019, Pages 391-396, ISBN 9780444641304, https://doi.org/10.1016/B978-0-12-409548-9.10608-6.)

A linkage group is defined by a set of genes and markers that are frequently inherited together. (M.A. Cleary, F.W. Stahl, Linkage Group, Editor(s): Stanley Maloy, Kelly Hughes, Brenner's Encyclopedia of Genetics (Second Edition), Academic Press, 2013, Page 254, ISBN 9780080961569, https://doi.org/10.1016/B978-0-12-374984-0.00871-8. (https://www.sciencedirect.com/science/article/pii/B9780123749840008718))

All meat from animals hunted or trapped for meat that is available for consumption; meat from game that roams in farms (a farm has an enclosed space) is excluded. (UNECE and FAO. 2018. Game Meat - Production and Trade in the UNECE region https://unece.org/fileadmin/DAM/timber/meetings/2018/20180321/game-meat-draft-2018-03.pdf)