Ileal Digestibility Determination of Different Diets by Two Fistulation Techniques (T-cannula vs. Steered lleocaecal Valve Cannula) and Two Markers (Chromic Oxide vs. Titanium Oxide)

摘要

T-cannulation was compared with SICV cannulation in ileal digestibility experiments with five diets. Chromic oxide and titanium oxide were used as markers. Digestibility determinations were not influenced by cannulation technique. However, standard deviations in SICV cannulation were smaller than those in T-cannulation. Repeatability of the determination of apparent digestibility of dry matter, crude protein and lysine as a weighted deviation of the mean of diets (residual mean square error) was 2.5-3.3 for SICV cannulation and 5.4—6.2 for the T-cannulation.