Thio-urea and methionine effects on glucose and leucine absorption in chicken jejunum.

Administration to broiler chickens of one single dose of thio-urea (7 mg/kg body weight) on the 7th day of age affects in different ways jejunal absorption of glucose and of leucine. Methionine supplementation of feedstuff (1.5 g/kg) through 40 days affects, in an age-dependent manner, glucose absorption, but not that of leucine.

Effects of dietary protein deficiency on hepatic carbohydrate metabolism in geese.

This paper was aimed at following up the course of glucose in the liver of protein underfed geese. Compared to normally fed geese, liver carbohydrate metabolism in protein underfed animals can be characterised by lowering of free glucose content of in vitro glucose uptake and glycogen synthesis and reduction of carbohydrates in total oxidation. Glycogen content of the liver and rate of glucose oxidation were also lowered, but these differences were not statistically significant.

Biochemical energetics of hierarchy formation in Betta splendens.

Two different stages of hierarchy formation in Betta splendens were considered. Winners and losers in a short social contact, and dominant and submissive individuals after the establishment of a hierarchy, respectively, were identified. Metabolical determinations (free glucose, glycogen and protein content, glycogen and protein synthesis, glucose and amino acid oxidation, carbohydrate degradation) were performed.