(P = 0.02) tissues increased with greater dietary MEI. No differences in small intestinal whole tissue concentrations of DNA, RNA, and N were observed between SH infusion and LI-H2O. Site of SH infusion did not affect whole tissue duodenum and ileum concentrations of DNA, RNA, and N, with the exception of a trend (P = 0.08) for duodenal RNA concentration to be greater for R-SH compared with A-SH. However, whole ileal tissue DNA concentration increased (P = 0.03), and thus N:DNA decreased (P = 0.03) with A-SH vs. R-SH. Complexity of abomasal carbohydrate infusion did not affect whole jejunal tissue concentrations of DNA, RNA, and N. Similarly, complexity of abomasal carbohydrate infusion
did not affect whole duodenal tissue concentrations of DNA, RNA, or N, but there was a trend (P = 0.07) for RNA:N to be greater for A-G compared withA-SH. Whole ileal tissue concentrations of RNA (P =0.04) and RNA:N (P = 0.03) were greater for A-G vs.A-SH, whereas DNA and N concentrations were similar between abomasal treatments.