... incorporation and the subsequent synthesis of nitrogenous compounds (urea, glutamine, bulk amino acids, protein) in the intestinal spiral valve, plasma, liver and muscle. Within 20 h post-feeding, we found labelled nitrogen was incorporated into all tissues examined. The highest δ 15 N values were seen...

... fed (N =10) and fasted (N =12) dogfish using the cardiac stomach (stomach 1, filling volume ∼12 ml), the pyloric stomach (stomach 2, ∼15 ml), the intestine (spiral valve, ∼20 ml) and the colon (∼3 ml). An additional series, using only intestinal sacs from fed fish (N =6), was performed in which 0.25...

...Hon Jung Liew; Gudrun De Boeck; Chris M. Wood SUMMARY In vitro gut sac preparations made from the cardiac stomach (stomach 1), pyloric stomach (stomach 2), intestine (spiral valve) and colon were used to examine the impact of feeding on transport processes in the gastrointestinal tract...