We tested the hypothesis that the dietary energy-dependent alterations of the rumen papillae size are accompanied by corresponding changes in systemic insulin-like growth factor (IGF)-1 concentration and in rumen papillary IGF type 1 receptors (IGF-1R). Young male goats (n=24) were randomly allocated to two groups (n=12) and fed a high level (HL) metabolizable energy [1200 kJ/(kg(0.75).d)] or a low level (LL) [500 kJ/(kg(0.75).d)] diet for 42 d. The concentration of ruminal total SCFA did not differ between the groups, but the molar proportion of butyric acid was enhanced by 70

作者：Zanming, Shen；Hans-M, Seyfert；Berthold, L?hrke；Falk, Schneider；Rudi, Zitnan；Arthur, Chudy；Siegfried, Kuhla；Harald M, Hammon；Juerg W, Blum；Holger, Martens；Hans, Hagemeister；Juergen, Voigt

来源：The Journal of nutrition 2004 年 134卷 1期