Bergstrom, J.R.; Skaar, G.R.; Nelssen, J.L.; Houser, T.A.; Tokach, M.D.; Goodband, R.D.; DeRouchey, J.M.; Dritz, S.S.
(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2011)
A total of 160 pigs (initially 198 lb) were used to evaluate the effects of increasing
dietary astaxanthin (AX, from Xanthophyllomyces dendrorhous yeast) and Ractopamine
HCl (RAC) on the growth and carcass characteristics ...