| 摘要 |
PCT No. PCT/SE97/00488 Sec. 371 Date Sep. 25, 1998 Sec. 102(e) Date Sep. 25, 1998 PCT Filed Mar. 21, 1997 PCT Pub. No. WO97/35491 PCT Pub. Date Oct. 2, 1997A method of increasing the production of/in breeding and production mammals by administering an agent which consists of at least one type of xanthophylles, preferably astaxanthin, in the feed to animals, is disclosed. |
