CPC A23K 20/105 (2016.05) | 14 Claims |
1. A feed composition, wherein the feed composition comprises an optional feed-acceptable adjuvant; and at least one compound selected from hexahydro-β-acid compounds represented by formula (I) and feed-acceptable salts thereof:
![]() wherein R is methyl or ethyl,
wherein the feed composition is free of hexahydro-lupulone or a salt thereof,
wherein the feed composition comprises a hexahydro-β-acid compound represented by formula (i) or a feed-acceptable salt thereof, and a hexahydro-β-acid compound represented by formula (ii) or a feed-acceptable salt thereof:
![]() and wherein the weight ratio of the hexahydro-β-acid compound represented by formula (i) or the feed-acceptable salt thereof to the hexahydro-β-acid compound represented by formula (ii) or the feed-acceptable salt thereof is 1:0.01 to 1:0.50; or
the weight ratio of the hexahydro-β-acid compound represented by formula (i) or the feed-acceptable salt thereof to the hexahydro-β-acid compound represented by formula (ii) or the feed-acceptable salt thereof is 1:0.25 to 1:0.50.
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